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Hot Rolled Bright Surface SS431 Round Bar AISI 431 Stainless Steel Bar OD 6-300mm

Certification	ISO, AISI, ASTM, EN, DIN, JIS
Minimum Order Quantity	50 kg
Price	US $2.35-5.35 / kg

Product Details

Model NO.	431	Shape	Round
Technique	Hot Rolled	Surface Treatment	Bright
Specification	OD 6-300mm	Production Capacity	50000kgs
Carbon Content	0.12-0.20%	Silicon Content	0-1.00%
Manganese Content	0-1.00%	Nickel Content	1.25-3.00%
Chromium Content	15.00-18.00%	Tensile Strength	850-1000 Mpa
Yield Strength	635 Mpa	Elongation	11%
Hardness	248-302 HB
Highlight	Hot Rolled SS431 Round Bar , Bright Surface AISI 431 Round Bar , OD 6-300mm Stainless Steel Bar

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Product Description

431 Stainless Steel Bar - SS431 Round Bar

DIN 1.2787, AISI 431 ESR Stainless Steel Round Bars specifically engineered for glass mold manufacturing. Available in prehardened or soft annealed states with rough peeled surface finish.

NEW GENERATION FOR GLASS MOLDS MANUFACTURING
431 mod. represents a special improved grade derived from 1.4057. ESR 431 premium supplies deliver extended mold life through its extra fine microstructure.

Chemical Composition Comparison

Grade	C	Si	Mn	P	S	Cr	Ni	Mo	V
FG431	0.17 ~ 0.22	0.4 ~ 0.5	0.6 ~ 0.7	0.025 max.	0.015 max.	15.5 ~ 16.0	1.7 ~ 1.9	0.2 ~ 0.25	0.06 ~ 0.1
DG431	0.20 ~ 0.25	0.25 ~ 0.35	0.8 ~ 0.9	0.025 max.	0.015 max.	15.5 ~ 16.0	1.8 ~ 1.9	0.3 ~ 0.35	0.05 ~ 0.1

Material Overview

431 is a high chromium-low nickel Martensitic stainless steel with exceptional hardenability, offering high strength and good corrosion resistance. Typically supplied hardened and tempered in the tensile range 850-1000 MPa (condition T) with Brinell hardness range 248-302.

Key Characteristics

Excellent corrosion resistance in general atmospheric environments
Good resistance to mild marine and industrial atmospheres
Resistant to organic materials, nitric acid, and petroleum products
High tensile and yield strength with excellent toughness
Capable of through hardening up to Rc44 depending on carbon content and section size
Responds readily to nitriding for surface hardness over Rc65
Magnetic in all conditions

Stock Information

Colour Code	Purple (Bar end)
Stocked Sizes	6.35 to 260 mm diameter
Bar Finish	Peeled, Cold Drawn, Turned and Polished, Centreless Ground

International Specifications

Australia	AS 2837-1986 431
Germany	W.Nr 1.4057 X20CrNi17 2
Great Britain	BS970 Part3 1991 431S29, BS970 - 1955 EN57
Japan	JIS G4303 SuS 431
USA	ASTM A276-98b 431, SAE 51431 AISI 431, UNS S43100

Standard Chemical Composition

Element	Min. %	Max %
Carbon	0.12	0.20
Silicon	0	1.00
Manganese	0	1.00
Nickel	1.25	3.00
Chromium	15.00	18.00
Phosphorous	0	0.04
Sulphur	0	0.03

*Carbon range can vary considerably *Nickel addition optional

Mechanical Properties

Standard Requirements (Condition T)

Property	Annealed	Condition T*
Tensile Strength MPa	Min	850
Tensile Strength MPa	Max	1000
0.2% Yield Strength MPa	Min	635
Elongation on 5.65√S0 %	Min	11
Izod Impact Value J mm	Min	63 34 / 63 20
Hardness HB	Min	248
Hardness HB	Max	277 / 302

*Material stocked generally in condition T. Check mill certificate if critical for end use.

Typical Room Temperature Properties (Hardened & Tempered to Condition T)

Tensile Strength MPa	940
0.2% Yield Strength MPa	750
Elongation in 50mm %	19
Impact Izod J	65
Hardness HB	280
Hardness Rc	30
Typical Hardening Temperatures	980°C - 1020°C
Typical Tempering Temperatures	640°C - 660°C / 590°C - 610°C

Applications

Extensively used for components requiring high tensile strength, good toughness, and corrosion resistance. Typical applications include aircraft parts, bolts and nuts, fasteners, pump shafts, propeller shafts, studs, and valve parts.

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Hot Rolled Bright Surface SS431 Round Bar AISI 431 Stainless Steel Bar OD 6-300mm

Hot Rolled SS431 Round Bar

Bright Surface AISI 431 Round Bar

OD 6-300mm Stainless Steel Bar