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ESR Premium AISI 431 Stainless Steel Round Bar for Glass Mould Manufacturing with OD 6-300mm
Product Details
| Model Number | 431 | Shape | Round |
|---|---|---|---|
| Technique | Hot Rolled | Surface Treatment | Bright |
| Diameter Range | 6-300mm | 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% |
| Phosphorous Content | 0-0.04% | Sulphur Content | 0-0.03% |
| Tensile Strength | 850-1000 Mpa | Yield Strength | 635 Mpa |
| Hardness HB | 248-302 | ||
| Highlight | ESR Premium Stainless Steel Round Bar,Glass Mould Manufacturing AISI 431 Round Bar,OD 6-300mm DIN 1.2787 Round Bar |
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Product Description
DIN 1.2787 AISI 431 ESR Stainless Steel Round Bars for Glass Moulds
Premium ESR 431 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, featuring ESR (Electro-Slag Remelted) technology that delivers longer mold life through extra fine microstructure.
Chemical Composition
| 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 Characteristics
AISI 431 is a high chromium-low nickel martensitic stainless steel with excellent hardenability, high strength, and good corrosion resistance. Typically supplied hardened and tempered in the tensile range 850-1000 MPa.
- Excellent corrosion resistance in 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
- Responds well to nitriding processes
Available Sizes & Finishes
Stocked sizes range from 6.35mm to 260mm diameter. Available finishes include peeled, cold drawn, turned and polished, and centreless ground.
International Specifications
| Country | Standard | Designation |
|---|---|---|
| Australia | AS 2837-1986 | 431 |
| Germany | W.Nr 1.4057 | X20CrNi17 2 |
| Great Britain | BS970 Part3 1991 | 431S29 |
| Japan | JIS G4303 | SuS 431 |
| USA | ASTM A276-98b | 431 |
Typical Applications
Glass molds, aircraft components, bolts and nuts, fasteners, pump shafts, propeller shafts, studs, and valve parts. Material is magnetic in all conditions.
Important Note: Tempering within the range 370°C - 565°C should be avoided due to significant drop in impact properties. For optimum corrosion resistance, ensure surfaces are free of scale and foreign particles, and consider passivation for finished parts.
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