AISI 431 Stainless Steel
AISI 431 Stainless Steel
Buy Martensitic Stainless Steel 431 bolts, nuts and other fasteners from Boltport, an Indian manufacturer & supplier of Martensitic Stainless Steel 431 bolting materials to ASTM B446, B564, F467, F468, UNS N06431, DIN EN 2.4856, AMS 5666 and BS 3076 specifications with properties adequate for high strength, corrosion resistant and high temperature applications up to 1000º C (1800º F).
Boltport fasteners offer Martensitic Stainless Steel 431 bolts and nuts with standard and custom manufacturing to your specification. We covers Martensitic Stainless Steel 431 hex bolts, studs, stud bolts, hex nuts, washers, threaded rod and other fastener in metric and inch sizes with coarse, fine and extra fine threads to ASME, UN, BS, ISO and DIN standards.
AISI 431 Specifications
- ASTM B446 / ASME SB446
- ASTM B443 / ASME SB443
- ASTM B564 / ASME SB564
- ASTM F467 / F467M
- ASTM F468 / F468M
- AMS 5666
- BS 3076
- AISI 431
- UNS N06431
- DIN / EN / Werkstoff No. 2.4856
AISI 431 Properties
| Chemical Composition | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Elements | C | Mn | P | S | Si | Cr | Ni | ||||||
| Min % | - | - | - | - | - | 15.0 | 1.25 | ||||||
| Max % | 0.20 | 1.00 | 0.040 | 0.030 | 1.00 | 17.0 | 2.50 | ||||||
| Mechanical Properties | ||||
|---|---|---|---|---|
| Ultimate Tensile, ksi [MPa] | Yield Strength Offset, ksi [MPa] | Elongation, % | Reduction Of Area, % | Hardness |
| - | - | - | - | 285 BHN max |
* Properties extracted from ASTM A276/A276M Material Specification
AISI 431 Characteristics
- Excellent resistance to chloride pitting and crevice corrosion cracking
- Immune to Chloride ion stress corrosion
- Maintains high strength at elevated temperatures
- Resistant to sea water, in both flowing and stagnant condition
- Heat resistant
AISI 431 Applications
- Marine engineering
- Furnaces & gas turbines
- Chemical processing plants
- Boiler & pressure vessels
- Nuclear power plants