Hot Rolled Bright Surface SS431 Round Bar AISI 431 Stainless Steel Bar OD 6-300mm
Price:
US $2.35-5.35 / kg
MOQ:
50 kg
Delivery Time:
Negotiable
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.
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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Company
JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
Location
No.283-1, Youyi Middle Road, Xishan District, Wuxi City, Jiangsu Province
Contact Person
Gao Ben