Chintamani Stainless Incs

Duplex Fastener

Chintamani Stainless Inc is ISO 9001:2008 certified manufacturer, supplier and exporter of Duplex fasteners in India and worldwide.The Duplex 2205 Fasteners are made up of 2205 stainless steel, which is the mostly commonly used duplex grade. This is a nitrogen enhanced alloy of stainless steel, which comes with good corrosion resistance properties. They show good resistance to different types of corrosion even in welded conditions.
The Duplex Stainless Steel Fasteners possess high strength, which is why they are useful in many applications. But due to their increased hardenability, they have lower machinability. The strength of the Duplex Bolts material also makes it difficult to bend or form them, they require a larger capacity equipment than what is required for austenitic steel products.
The Duplex Hex Bolt material has good content of elements like chromium, molybdenum, and nickel in its chemical composition, which is why they show good pitting resistance. In fact the Pitting Resistance Equivalent (PERN) of the Duplex Threaded Rod is 35.8, which is quite high and exceeds that of 316 and 316L stainless steel grades. On heating, the microstructure of the Duplex Stud Bolts becomes such that it is a perfect mixture of the austenite and ferrite phases.
The microstructure of the Duplex 2205 Hex Bolt is also responsible for its high corrosion resistance capabilities in different types of environments. In fact, the Duplex 2205 Threaded Rod possesses superior corrosion resistivity than other stainless steel grades like 316 or 317.
Bolts, ASTM A182 F51 UNS S31803 The material that makes up nuts is duplex grade. High-stress applications like heat exchangers, pressure vessels, and chemical processing applications require these bolts and nuts. These ASTM A182 f51 bolts and nuts come in a variety of sorts and dimensions, and Chintamani Stainless Inc is a top maker of them. Carbon, manganese, silicon, phosphorus, sulphur, 22% chromium, 3% molybdenum, 4.5% nickel, nitrogen, and iron make up the substance. With a minimum yield strength of 550 MPa, a minimum tensile strength of 800 MPa, a 15% elongation rate, and a density of 7.8 grammes per centimetre cube, the uns s31803 bolt exhibits great strength. The ASTM A182 and A479 requirements, which address high pressure and high temperature applications, apply to the uns s31803 fasteners.
The dual crystallinity of a duplex grade stainless steel's microstructure accounts for its improved qualities. In an annealed state, 50% of the microstructure of DIN 1.4462 Studs is composed of austenite and ferrite. Therefore, the alloy of a Duplex steel UNS S32205 Fasteners astm a276/a479 UNS S32205 Bolts has the characteristics of both crystalline metals concurrently. Because of the hardness of the ferrite crystals and the flexibility of its austenite crystalline region, the alloy is easier to form into Astm A479 Duplex Steel UNS S32205 Hex Bolts while maintaining its shape.

Specification

Specification List Of ASTM A182 Grade F51 UNS S31803 Bolts

Specifications

ASTM A 182 / ASME SA 182

Grade
ASTM A182 GR.F51

Standard

IN931, DIN933, ISO4014, ISO4017, ASTM, BS and all International Standards

Length

3 mm to 200 mm

Nuts Size

M3 – M56 | 3/6″ to 2″ | Custom Sizes

Bolts / Screw Size

M3 – M56 | 3/6″ to 2″ | Custom Sizes

Standard

DIN, UNI, ISO, JIS, GB, IS, BS, ASME, ANSI, ASTM and all International Standards

Bolts, Studs Threads:

METRIC, BSW, BSF, UNC, UNF or as required

In Form of

Hex, Square, Round, Threading as per Gauge Etc.

Head drive

Phillips, Slotted, Phillips/Slot, Six-Lobe, etc

Bolts Size

M2, M2.5, M3, M4, M5, M6, M8, M10, M12, M14, M16, M20, M24, M30, M36 to M160

Machine Screws Size

M1.6 – M12

Washers Size

M3 – M56 | 3/6″ to 2″ | Custom Sizes

DIN 931 – Hexagon head bolts with shank
Current norm: DIN EN ISO 4014
Equivalent norms: ISO 4014; CSN 021101; PN 82101; UNI 5737; EU 24014;

DIN 933 – Hexagon head bolts with thread up to head.
Current norm: DIN EN 24017.
Equivalent norms: ISO 4017; CSN 021103; PN 82105; UNI 5739; EU 24017

Test Certificate:

Manufacturer Test Certificate as per EN 10204 / 3.1

Source of raw materials

Tata Steel, JSPL, RINL, Usha Martin, Dhamm Steel, Mukund Steel etc.

Scope Of Manufacture

Hot Forged , Nut / Bolt; up to M36 / 1-1/2” Dia, up to 1100mm lg

CNC Machined , Nut / Bolt; up to M100 / 4” Dia, up to 1500mm lg

Duplex Steel Grades

Duplex Steel UNS S32205

Packing
IN BULK: canton, pallet, Small Boxs / carton / pallet, or customer request

Production process
M2-M24: Cold Froging, hot forging M24-M100, machining and CNC for Customized connecting element

Duplex S31803 Fasteners Standard:
ANSI – American National Standards Institute

ANSI B 18.2.4 2M

ANSI B 28.2.4 1M

SS 304l Stud Bolt length are defined in ASME B16.5 standard

SS 304l Hex nuts are defined in ASME B18.2.2

ASME B18.5

DIN: DIN 931, DIN 933, DIN 934, DIN 970

UTS – Unified Thread Standard : UNC, UNF, UNEF, UNS, NPT, NPTF

ISO – International Organization for Standardization : ISO 4032, ISO 4033, JIS standards

Fasteners Type

Cap Screw, Machine Screw, Wing Screw, Spring Washers, Washers, Studs, Marine Anchors, Anchors, Hexagon Nut,U- Bolts, Anchor Bolt, Mushroom Head Square Neck Bolts, J Bolts,Eye Bolt,Structural Bolts, Bolts, Nuts, Sockets, Screws, Allen Cap screw,Nut, Hex Coupling Nut, Hex Nut, Square Nut, Hex Domed Cap Nuts, Hex Head Bolts, Stud Bolts, Socket Hexagon Head Screw, Pan Head Screw, Socket Head Cap Screw, Wing Screw, T-Head Bolts, Foundation Bolts,Screw, Studs, Socket Screw, Hex Set Screw

ASTM A182 GR.F51 Fasteners Property Class

For Bolts & Screws A2-70, A2-80, A4-70, A4-80, F593C, F593D, F593G, F593H

For Nuts A2-70, A2-80, A4-70, A4-80, F594C, F594D, F594G, F594H, A2-035, A4-040

For SHCS F837B, F837C, F837E, F837

For Threaded Rods A2-70, A2-80, A4-70, A4-80, F593C, F593D, F593G, F593H, B8, B8M CL1 & CL2

ASTM A182 GR.F51 Fasteners Inventory

Hexagon Bolts / Set Screws Stud Bolts Hexagon Nuts Socket Cap Screws

DIN 931 BS4882 DIN 934 DIN 912

DIN 933 DIN 976 BS 1768 DIN 6912

BS 1768 BS 1769 DIN 7984

UNI 5731 BS 1083 ANSI B18.3

UNI 5739 BS 3692 ISO 4762

ISO 4014 ISO 4032 UNI 5931

ISO 4017 ISO 4033 BS 2470

BS 1769 ANSI B18.2.2 BS 4168

BS 3692

ANSI B18.2.1

Socket & Slotted Set Screws Socket & Slotted Countersunk Screws Studs Washers

DIN 913 DIN 963 DIN 938 DIN 125

DIN 914 DIN 7991 DIN 939 DIN 9021

DIN 915 BS 4168 DIN 2510 BS 4320

DIN 916 BS 1981 BS 4439 BS 3410

DIN 551 BS 483 BS 2693

DIN 553 BS 2470 Spring Washers

DIN 438 DIN 127

BS 4168 BS 4464

BS 1802

Standard Dimensions Of ASTM A1082 UNS S31803 Hex Nuts

Thread Diameter Of Nominal Size Nut Diameter Of (F) Diameter Of (G) Diameter Of (H)

Hex Nut Width
Across Flats Hex Nut Width
Across Corners Wall Thickness

Basic Maximum Minimum Maximum Minimum Basic Maximum Minimum

1/4 .2500 7/16 .438 .428 .505 .488 7/32 .226 .212

5/16 .3125 1/2 .500 .489 .577 .557 17/64 .273 .258

3/8 .3750 9/16 .562 .551 .650 .628 21/64 .337 .479

7/16 .4375 11/16 .688 .675 .794 .768 3/8 .385 .365

1/2 .5000 3/4 .750 .736 .866 .840 7/16 .448 .427

9/16 .5625 7/8 .875 .861 1.010 .982 31/64 .496 .473

5/8 .6250 15/16 .938 .922 1.083 1.051 35/64 .559 .535

3/4 .7500 1-1/8 1.125 1.088 1.299 1.240 41/64 .665 .617

7/8 .8750 1-5/16 1.312 1.269 1.516 1.447 3/4 .776 .724

1 1.0000 1-1/2 1.500 1.450 1.732 1.653 55/64 .887 .831

1-1/8 1.1250 1-11/16 1.688 1.631 1.949 1.859 31/32 .999 .939

1-3/8 1.3750 2-1/16 2.062 1.994 2.382 2.273 1-11/64 1.206 1.138

1-1/2 1.500 2-1/4 2.250 2.175 2.598 2.480 1-9/32 1.ASTM A194 GR. 8 1.245

1-5/8 1.6250 2-7/16 2.438 2.356 2.815 2.686 1-25/64 1.429 1.353

1-3/4 1.7500 2-5/8 2.625 2.538 3.031 2.893 1-1/2 1.540 1.460

2 2.0000 3 3.000 2.900 3.464 3.306 1-23/32 1.763 1.675

2-1/4 2.2500 3-3/8 3.375 3.263 3.897 3.719 1-15/16 1.986 1.890

2-1/2 2.5000 3-3/4 3.750 3.625 4.330 4.133 2-5/32 2.209 2.105

2-3/4 2.7500 4-1/8 4.125 3.988 4.763 4.546 2-3/8 2.431 2.319

Dimension Table Of Duplex Steel - UNS S31803 Bolts

Nominal Size Of (D) Body Diameter Of Bolts Thickness Of Head UNS S32760 Bolts Across The Flats UNS S32760 Bolts Across Corners

MAXIMUM (D) MINIMUM (D) MAXIMUM (H) MINIMUM (H) MAXIMUM (F) MINIMUM (F) MAXIMUM (C) MINIMUM (C)

Metric 10 10.00 9.78 6.63 6.17 17.00 15.73 18.48 17.77

Metric 12 12.00 11.73 7.76 4.24 19.00 17.73 20.78 20.03

Metric 14 14.00 13.73 9.09 8.51 22.00 20.67 24.25 23.35

Metric 16 16.00 15.73 10.32 9.68 24.00 23.67 27.71 26.75

Metric 20 20.00 19.67 12.88 12.12 30.00 29.16 34.64 32.95

Metric 24 24.00 23.67 15.44 14.56 36.00 35.00 41.57 39.55

Metric 30 30.00 29.67 19.48 17.92 46.00 45.00 53.12 50.85

Metric 36 36.00 35.61 23.38 21.63 55.00 53.80 63.51 60.79

Metric 42 42.00 41.38 26.97 25.03 65.00 62.90 75.06 71.71

Metric 48 48.00 47.38 31.07 28.93 75.00 72.60 86.60 82.76

Metric 56 56.00 55.26 36.2 33.80 85.00 82.20 98.15 93.71

Metric 64 64.00 63.26 41.32 38.68 95.00 91.80 109.70 104.65

Metric 72 72.00 71.26 46.45 43.55 105.00 101.40 121.24 115.60

Metric 80 80.00 79.26 51.58 48.42 115.00 111.00 132.72 126.54

Metric 90 90.00 89.13 57.74 54.26 130.00 125.50 150.11 143.07

Metric 100 90.00 99.13 63.9 60.10 145.00 140.00 167.43 159.60

ASTM A182 Grade F51 Flat Washer Dimensional Format

Size Of S31803 Flat Washer

USS

SAE

I.D. (Inside Diameter) Of
(A)

O.D. (Outside Diameter) Of
(B)

Wall Thickness Of
(C)

I.D. Of
(A)

O.D. Of
(B)

Wall Thickness Of
(C)

#2

-

-

-

3/32"

1/4"

0.020"

#4

-

-

-

1/8"

5/16"

0.032"

#6

-

-

-

5/32"

3/8"

0.049"

#8

-

-

-

3/16"

7/16"

0.049"

Duplex 2205 Shoulder Bolts Equivalent

grade Common Name Related Specifications

UNS European DIN ASTM/ASME

2205 Duplex Stainless Steel Bolts SAF 2205® S31803/S32205 1.4462 F51/F60

CHEMICAL COMPOSITION

Grade Fe Mn C Si S P Cr Ni Mo N

S31803 63.72 min 2.00 max 0.030 max 1.00 max 0.020 max 0.030 max 22.0 – 23.0 4.50 – 6.50 3.0 – 3.5 0.14 – 0.20

S32205 63.54 min 2.00 max 0.030 max 1.00 max 0.020 max 0.030 max 21.0 – 23.0 4.50 – 6.50 2.50 - 3.50 0.8 – 0.20

MECHANICAL PROPERTIES

Duplex Bolts & Nuts Tensile Strength Melting Point Density Yield Strength (0.2%Offset) Elongation

Psi – 116000 , MPa – 800 1350 °C (2460 °F) 7.8 g/cm3 Psi – 80000 , MPa – 550 15 %

Duplex Stud Bolts Application

Petrochemicals

Aircraft Exhaust Manifolds

Off-Shore Oil Drilling Companies

Sea Water Equipment

Pharmaceuticals

Power Generation

General characteristics

Steel designations

Performance

Typical chemical composition, % by mass

name

EN

ASTM
Type

UNS

PRE

A1)
%

Rp0.2
MPa

Grade
family

C

Cr

Ni

Mo

N

2205 1.4462 2205 S32205 35 20 500 D 0.02 22.4 5.7 3.1 0.17

2205 stainless steel grades Industry Specifications UNS

Duplex 2205

2205 (EN 1.4462/UNS S32205 & S31803)
The most popular duplex product on the market. Offers very
good resistance to uniform and localized corrosion and stress
corrosion cracking in combination with high mechanical strength.
• Cargo tanks in chemical tankers
• Pulp and paper industry applications such as digesters and process tanks
• Oil and gas industry, typically tubular products, flanges,
fittings and valves
• Structural components in bridges • Cold rolled coil and sheet
• Hot rolled coil and sheet
• Quarto plate
• Bar
• Wire rod
• Semi-finished
(bloom, billet, ingot & slab)

Performance

Elongation vs. corrosion resistance.

Elongation vs. Corrosion resistance

Strength vs. Corrosion resistance

Elongation vs. Corrosion resistance

Duplex stainless steels, known for their high chromium content, provide excellent corrosion resistance, particularly in uniform corrosion environments with rates below 0.1 mm/year. Forta DX 2205 shows superior resistance to chloride-contaminated sulfuric acid compared to traditional stainless steels like Supra 316L/4404, approaching the performance of Ultra 904L. In dilute hydrochloric acid, Forta SDX 2507 and similar high-alloyed duplex steels are suitable, though localized corrosion risks exist around crevices even within safe usage limits.

Corrosion resistance

Uniform Corrosion: Due to high chromium content, these steels resist uniform corrosion well, typically less than 0.1 mm/year.

Sulfuric Acid: DX 2205 shows superior resistance in sulfuric acid contaminated by chloride ions compared to Supra 316L/4404.

Hydrochloric Acid: SDX 2507 and DX 2205 can be used in dilute hydrochloric acid, with potential risks of localized corrosion in crevices.

Nitric Acid: LDX 2101 and DX 2304, with their high chromium content and low molybdenum, are suitable for environments where resistance to strongly oxidizing nitric acid is needed.

PRE values for Forta Duplex grades and some austenitic grades

Steel designations

PRE

name EN ASTM
Type UNS

2205 1.4462 2205 S32205 35

Results from stress corrosion cracking immersion tests in chloride solutions

name ASTM G123 ASTM G36

25% NaCl, pH 1.5, 106°C (b.p.), 1,000 h 40% CaCl2, 100°C, 500 h 45% MgCl2, 155°C (b.p.), 24 h

U-bend samples 4-PB samples (90% of Rp0.2) U-bend samples

2205 No SCC No SCC SCC

Mechanical properties according to EN 10088 and EN 10028

EN ASTM Product form Yield strength Tensile Elongation Elongation

name UNS Rp0.2[MPa] strength A[%] A80[%]

Rm[MPa]

2205 1.4462 S32205 Cold rolled coil (C) 500 700–950 20 20

Hot rolled coil (H) 460 700–950 25 25

Quarto plate (P) 460 640–840 25 25

Wire rod 1) 510 750 35 –

Bar 450 650–880 25 –

Mechanical properties according to ASTM A240

EN ASTM Product form Yield Yield Tensile Tensile Elongation

name UNS strength strength strength strength A50[%]

Rp0.2[MPa] Rp0.2 [ksi] Rm [MPa] Rm [ksi]

2205 1.4462 S32205 Plate, sheet and strip 450 65 655 95 25

Wire rod 1) 510 74 752 109 –

Mechanical properties at elevated temperatures, minimum yield strength according to EN 10028-7

name Strength 100°C 150°C 200°C 250°C

2205 Yield strength Rp0.2 [MPa] 360 335 315 300

Tensile strength Rm [MPa] 590 570 550 540

Physical properties

Metric values according to EN 10088-1

name EN ASTM Type UNS Density [kg/dm3] Modulus of elasticity at 20°C [GPa] Coefficient of thermal expansion 20–100°C [10-6/K] Thermal conductivity at 20°C [W/(m x K)] Thermal capacity at 20°C [J/(kg x K)] Electrical resistivity at 20°C [Ω x mm2/m]

2205 1.4462 2205 S32205 7.8 200 13.0 15 500 0.8

Imperial values converted from Table 10

name Density [lbm/in3] Modulus of elasticity [psi] Coefficient of thermal expansion 68–212°F [μin / (in x °F)] Thermal conductivity [Btu/(hr x ft x °F)] Thermal capacity [Btu/(lbm x °F)] Electrical resistivity [μΩ x in]

2205 0.282 29 x 106 7.2 8.7 0.119 31.50

Fabrication

Duplex stainless steel is suitable for all forming processes used for stainless steel. The high yield strength compared to austenitic and ferritic stainless steel can however give differences in forming behavior. Depending on the chosen forming technique there could be consequences, such as increased springback. This point is particularly relevant to the forming of any high strength steel. Moreover, an excellent interplay between high yield strength, work hardening rate and elongation promote the duplex grades for light weight and cost-efficient applications with complex shapes. The impact of the high strength varies for different forming techniques. Common for all is that the estimated forming forces will be higher than for the corresponding austenitic and ferritic stainless steel grades. This effect will usually be lower than expected from just the increase in strength since the choice of duplex stainless steel is often associated with gauge reduction. It is important to consider that duplex stainless steel may also be more demanding on the tools and on the lubricant. This should also be noted when looking to down gauge.

Welding consumables

name EN ASTM Type UNS Consumable ISO designation

2205 1.4462 2205 S32205 22 9 3 NL

General characteristics

Steel designations

Performance

Typical chemical composition, % by mass

name

EN

ASTM
Type

UNS

PRE

A1)
%

Rp0.2
MPa

Grade
family

C

Cr

Ni

Mo

N

2205 1.4462 2205 S32205 35 20 500 D 0.02 22.4 5.7 3.1 0.17

Hexagon Bolts / Set Screws	Stud Bolts	Hexagon Nuts	Socket Cap Screws
DIN 931	BS4882	DIN 934	DIN 912
DIN 933	DIN 976	BS 1768	DIN 6912
BS 1768		BS 1769	DIN 7984
UNI 5731		BS 1083	ANSI B18.3
UNI 5739		BS 3692	ISO 4762
ISO 4014		ISO 4032	UNI 5931
ISO 4017		ISO 4033	BS 2470
BS 1769		ANSI B18.2.2	BS 4168
BS 3692
ANSI B18.2.1

Socket & Slotted Set Screws	Socket & Slotted Countersunk Screws	Studs	Washers
DIN 913	DIN 963	DIN 938	DIN 125
DIN 914	DIN 7991	DIN 939	DIN 9021
DIN 915	BS 4168	DIN 2510	BS 4320
DIN 916	BS 1981	BS 4439	BS 3410
DIN 551	BS 483	BS 2693
DIN 553	BS 2470		Spring Washers
DIN 438			DIN 127
BS 4168			BS 4464
			BS 1802

Nominal Size Of (D)	Body Diameter Of Bolts		Thickness Of Head		UNS S32760 Bolts Across The Flats		UNS S32760 Bolts Across Corners
	MAXIMUM (D)	MINIMUM (D)	MAXIMUM (H)	MINIMUM (H)	MAXIMUM (F)	MINIMUM (F)	MAXIMUM (C)	MINIMUM (C)
Metric 10	10.00	9.78	6.63	6.17	17.00	15.73	18.48	17.77
Metric 12	12.00	11.73	7.76	4.24	19.00	17.73	20.78	20.03
Metric 14	14.00	13.73	9.09	8.51	22.00	20.67	24.25	23.35
Metric 16	16.00	15.73	10.32	9.68	24.00	23.67	27.71	26.75
Metric 20	20.00	19.67	12.88	12.12	30.00	29.16	34.64	32.95
Metric 24	24.00	23.67	15.44	14.56	36.00	35.00	41.57	39.55
Metric 30	30.00	29.67	19.48	17.92	46.00	45.00	53.12	50.85
Metric 36	36.00	35.61	23.38	21.63	55.00	53.80	63.51	60.79
Metric 42	42.00	41.38	26.97	25.03	65.00	62.90	75.06	71.71
Metric 48	48.00	47.38	31.07	28.93	75.00	72.60	86.60	82.76
Metric 56	56.00	55.26	36.2	33.80	85.00	82.20	98.15	93.71
Metric 64	64.00	63.26	41.32	38.68	95.00	91.80	109.70	104.65
Metric 72	72.00	71.26	46.45	43.55	105.00	101.40	121.24	115.60
Metric 80	80.00	79.26	51.58	48.42	115.00	111.00	132.72	126.54
Metric 90	90.00	89.13	57.74	54.26	130.00	125.50	150.11	143.07
Metric 100	90.00	99.13	63.9	60.10	145.00	140.00	167.43	159.60

Size Of S31803 Flat Washer	USS	SAE
I.D. (Inside Diameter) Of (A)	O.D. (Outside Diameter) Of (B)	Wall Thickness Of (C)	I.D. Of (A)	O.D. Of (B)	Wall Thickness Of (C)
#2	-	-	-	3/32"	1/4"	0.020"
#4	-	-	-	1/8"	5/16"	0.032"
#6	-	-	-	5/32"	3/8"	0.049"
#8	-	-	-	3/16"	7/16"	0.049"

grade	Common Name	Related Specifications
		UNS	European DIN	ASTM/ASME
2205 Duplex Stainless Steel Bolts	SAF 2205®	S31803/S32205	1.4462	F51/F60

Product

Duplex Sheets Plates

Duplex Flanges

Duplex Industrial Fittings

Duplex Pipes & tubes

Duplex Round Bars

Duplex fasteners

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Duplex Fastener

Duplex Fastener

Specification

ASTM A182 GR.F51 Fasteners Property Class

Standard Dimensions Of ASTM A1082 UNS S31803 Hex Nuts

Dimension Table Of Duplex Steel - UNS S31803 Bolts

ASTM A182 Grade F51 Flat Washer Dimensional Format

Duplex 2205 Shoulder Bolts Equivalent

CHEMICAL COMPOSITION

MECHANICAL PROPERTIES

Duplex Stud Bolts Application

General characteristics

Performance

Elongation vs. corrosion resistance.

Elongation vs. Corrosion resistance

Strength vs. Corrosion resistance

Elongation vs. Corrosion resistance

Corrosion resistance

PRE values for Forta Duplex grades and some austenitic grades

Results from stress corrosion cracking immersion tests in chloride solutions

Mechanical properties according to EN 10088 and EN 10028

Mechanical properties according to ASTM A240

Mechanical properties at elevated temperatures, minimum yield strength according to EN 10028-7

Physical properties

Metric values according to EN 10088-1

Imperial values converted from Table 10

Fabrication

Welding consumables

General characteristics

Product

Quick contact

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Specifications	ASTM A 182 / ASME SA 182
Grade	ASTM A182 GR.F51
Standard	IN931, DIN933, ISO4014, ISO4017, ASTM, BS and all International Standards
Length	3 mm to 200 mm
Nuts Size	M3 – M56 \| 3/6″ to 2″ \| Custom Sizes
Bolts / Screw Size	M3 – M56 \| 3/6″ to 2″ \| Custom Sizes
Standard	DIN, UNI, ISO, JIS, GB, IS, BS, ASME, ANSI, ASTM and all International Standards
Bolts, Studs Threads:	METRIC, BSW, BSF, UNC, UNF or as required
In Form of	Hex, Square, Round, Threading as per Gauge Etc.
Head drive	Phillips, Slotted, Phillips/Slot, Six-Lobe, etc
Bolts Size	M2, M2.5, M3, M4, M5, M6, M8, M10, M12, M14, M16, M20, M24, M30, M36 to M160
Machine Screws Size	M1.6 – M12
Washers Size	M3 – M56 \| 3/6″ to 2″ \| Custom Sizes
DIN 931 – Hexagon head bolts with shank	Current norm: DIN EN ISO 4014 Equivalent norms: ISO 4014; CSN 021101; PN 82101; UNI 5737; EU 24014;
DIN 933 – Hexagon head bolts with thread up to head.	Current norm: DIN EN 24017. Equivalent norms: ISO 4017; CSN 021103; PN 82105; UNI 5739; EU 24017
Test Certificate:	Manufacturer Test Certificate as per EN 10204 / 3.1
Source of raw materials	Tata Steel, JSPL, RINL, Usha Martin, Dhamm Steel, Mukund Steel etc.
Scope Of Manufacture	Hot Forged , Nut / Bolt; up to M36 / 1-1/2” Dia, up to 1100mm lg CNC Machined , Nut / Bolt; up to M100 / 4” Dia, up to 1500mm lg
Duplex Steel Grades	Duplex Steel UNS S32205
Packing	IN BULK: canton, pallet, Small Boxs / carton / pallet, or customer request
Production process	M2-M24: Cold Froging, hot forging M24-M100, machining and CNC for Customized connecting element
Duplex S31803 Fasteners Standard:	ANSI – American National Standards Institute ANSI B 18.2.4 2M ANSI B 28.2.4 1M SS 304l Stud Bolt length are defined in ASME B16.5 standard SS 304l Hex nuts are defined in ASME B18.2.2 ASME B18.5 DIN: DIN 931, DIN 933, DIN 934, DIN 970 UTS – Unified Thread Standard : UNC, UNF, UNEF, UNS, NPT, NPTF ISO – International Organization for Standardization : ISO 4032, ISO 4033, JIS standards
Fasteners Type	Cap Screw, Machine Screw, Wing Screw, Spring Washers, Washers, Studs, Marine Anchors, Anchors, Hexagon Nut,U- Bolts, Anchor Bolt, Mushroom Head Square Neck Bolts, J Bolts,Eye Bolt,Structural Bolts, Bolts, Nuts, Sockets, Screws, Allen Cap screw,Nut, Hex Coupling Nut, Hex Nut, Square Nut, Hex Domed Cap Nuts, Hex Head Bolts, Stud Bolts, Socket Hexagon Head Screw, Pan Head Screw, Socket Head Cap Screw, Wing Screw, T-Head Bolts, Foundation Bolts,Screw, Studs, Socket Screw, Hex Set Screw

For Bolts & Screws	A2-70, A2-80, A4-70, A4-80, F593C, F593D, F593G, F593H
For Nuts	A2-70, A2-80, A4-70, A4-80, F594C, F594D, F594G, F594H, A2-035, A4-040
For SHCS	F837B, F837C, F837E, F837
For Threaded Rods	A2-70, A2-80, A4-70, A4-80, F593C, F593D, F593G, F593H, B8, B8M CL1 & CL2

Thread Diameter Of Nominal Size Nut		Diameter Of (F)			Diameter Of (G)		Diameter Of (H)
		Hex Nut Width Across Flats			Hex Nut Width Across Corners		Wall Thickness
		Basic	Maximum	Minimum	Maximum	Minimum	Basic	Maximum	Minimum
1/4	.2500	7/16	.438	.428	.505	.488	7/32	.226	.212
5/16	.3125	1/2	.500	.489	.577	.557	17/64	.273	.258
3/8	.3750	9/16	.562	.551	.650	.628	21/64	.337	.479
7/16	.4375	11/16	.688	.675	.794	.768	3/8	.385	.365
1/2	.5000	3/4	.750	.736	.866	.840	7/16	.448	.427
9/16	.5625	7/8	.875	.861	1.010	.982	31/64	.496	.473
5/8	.6250	15/16	.938	.922	1.083	1.051	35/64	.559	.535
3/4	.7500	1-1/8	1.125	1.088	1.299	1.240	41/64	.665	.617
7/8	.8750	1-5/16	1.312	1.269	1.516	1.447	3/4	.776	.724
1	1.0000	1-1/2	1.500	1.450	1.732	1.653	55/64	.887	.831
1-1/8	1.1250	1-11/16	1.688	1.631	1.949	1.859	31/32	.999	.939
1-3/8	1.3750	2-1/16	2.062	1.994	2.382	2.273	1-11/64	1.206	1.138
1-1/2	1.500	2-1/4	2.250	2.175	2.598	2.480	1-9/32	1.ASTM A194 GR. 8	1.245
1-5/8	1.6250	2-7/16	2.438	2.356	2.815	2.686	1-25/64	1.429	1.353
1-3/4	1.7500	2-5/8	2.625	2.538	3.031	2.893	1-1/2	1.540	1.460
2	2.0000	3	3.000	2.900	3.464	3.306	1-23/32	1.763	1.675
2-1/4	2.2500	3-3/8	3.375	3.263	3.897	3.719	1-15/16	1.986	1.890
2-1/2	2.5000	3-3/4	3.750	3.625	4.330	4.133	2-5/32	2.209	2.105
2-3/4	2.7500	4-1/8	4.125	3.988	4.763	4.546	2-3/8	2.431	2.319

Grade	Fe	Mn	C	Si	S	P	Cr	Ni	Mo	N
S31803	63.72 min	2.00 max	0.030 max	1.00 max	0.020 max	0.030 max	22.0 – 23.0	4.50 – 6.50	3.0 – 3.5	0.14 – 0.20
S32205	63.54 min	2.00 max	0.030 max	1.00 max	0.020 max	0.030 max	21.0 – 23.0	4.50 – 6.50	2.50 - 3.50	0.8 – 0.20

Duplex Bolts & Nuts	Tensile Strength	Melting Point	Density	Yield Strength (0.2%Offset)	Elongation
Duplex Bolts & Nuts	Psi – 116000 , MPa – 800	1350 °C (2460 °F)	7.8 g/cm3	Psi – 80000 , MPa – 550	15 %

Steel designations				Performance				Typical chemical composition, % by mass
name	EN	ASTM Type	UNS	PRE	A1) %	Rp0.2 MPa	Grade family	C	Cr	Ni	Mo	N
2205	1.4462	2205	S32205	35	20	500	D	0.02	22.4	5.7	3.1	0.17

2205 stainless steel grades	Industry Specifications	UNS
Duplex 2205 2205 (EN 1.4462/UNS S32205 & S31803) The most popular duplex product on the market. Offers very good resistance to uniform and localized corrosion and stress corrosion cracking in combination with high mechanical strength.	• Cargo tanks in chemical tankers • Pulp and paper industry applications such as digesters and process tanks • Oil and gas industry, typically tubular products, flanges, fittings and valves • Structural components in bridges	• Cold rolled coil and sheet • Hot rolled coil and sheet • Quarto plate • Bar • Wire rod • Semi-finished (bloom, billet, ingot & slab)

Steel designations				PRE
name	EN	ASTM Type	UNS
2205	1.4462	2205	S32205	35

name	ASTM G123		ASTM G36
	25% NaCl, pH 1.5, 106°C (b.p.), 1,000 h	40% CaCl2, 100°C, 500 h	45% MgCl2, 155°C (b.p.), 24 h
	U-bend samples	4-PB samples (90% of Rp0.2)	U-bend samples
2205	No SCC	No SCC	SCC

	EN	ASTM	Product form	Yield strength	Tensile	Elongation	Elongation
name		UNS		Rp0.2[MPa]	strength	A[%]	A80[%]
name		UNS		Rm[MPa]
2205	1.4462	S32205	Cold rolled coil (C)	500	700–950	20	20
			Hot rolled coil (H)	460	700–950	25	25
			Quarto plate (P)	460	640–840	25	25
			Wire rod 1)	510	750	35	–
			Bar	450	650–880	25	–

	EN	ASTM	Product form	Yield	Yield	Tensile	Tensile	Elongation
name		UNS		strength	strength	strength	strength	A50[%]
name		UNS		Rp0.2[MPa]	Rp0.2 [ksi]	Rm [MPa]	Rm [ksi]	A50[%]
2205	1.4462	S32205	Plate, sheet and strip	450	65	655	95	25
2205	1.4462	S32205	Wire rod 1)	510	74	752	109	–

name	Strength		100°C	150°C	200°C	250°C
2205	Yield strength	Rp0.2 [MPa]	360	335	315	300
2205	Tensile strength	Rm [MPa]	590	570	550	540

name	EN	ASTM Type	UNS	Density [kg/dm3]	Modulus of elasticity at 20°C [GPa]	Coefficient of thermal expansion 20–100°C [10-6/K]	Thermal conductivity at 20°C [W/(m x K)]	Thermal capacity at 20°C [J/(kg x K)]	Electrical resistivity at 20°C [Ω x mm2/m]
2205	1.4462	2205	S32205	7.8	200	13.0	15	500	0.8

name	Density [lbm/in3]	Modulus of elasticity [psi]	Coefficient of thermal expansion 68–212°F [μin / (in x °F)]	Thermal conductivity [Btu/(hr x ft x °F)]	Thermal capacity [Btu/(lbm x °F)]	Electrical resistivity [μΩ x in]
2205	0.282	29 x 106	7.2	8.7	0.119	31.50

name	EN	ASTM Type	UNS	Consumable ISO designation
2205	1.4462	2205	S32205	22 9 3 NL