Grade 303Se stainless steel is a modified version of the basic grade 303, where selenium is substituted for sulfur to enable machining. Grade 303Se offers excellent machinability, good strength, and corrosion resistance. It has the capacity to resist scaling at temperatures up to 871°C (1600°F). This stainless steel is commonly used in parts requiring cold forming after machining.
| Element | Content(%) |
|---|---|
| Chromium, Cr | 17-19 |
| Nickel, Ni | 8-10 |
| Manganese, Mn | 2 |
| Silicon, Si | 1 |
| Phosphorous, P | 0.2 |
| Carbon, C | 0.15 |
| Selenium, Se | 0.15 (min) |
| Sulfur, S | 0.06 |
| Iron, Fe | Balance |
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength | 620 MPa | 89900 psi |
| Yield strength (@strain 0.200%) | 240 MPa | 34800 psi |
| Elastic modulus | 193 GPa | 28000 ksi |
| Shear modulus | 77.2 GPa | 11200 ksi |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
| Elongation at break (in 50 mm) | 50% | 50% |
| Production Route | Hot Rolled, Cold Rolled |
|---|---|
| Material Standard | AISI, ASTM, ASME, DIN, BS, EN, ISO, JIS, GOST, SAE, IS & Custom Chemistry |
| Size | Width from 100mm to 3000mm ; Length from 500mm to 12000mm |
| Thickness | 0.1mm to 400mm |
| Delivery Condition | As Rolled, Annealed, Quenched and Tempered, Normalized |
| Surface Finish | Plain, Brushed, Cladded |
AMS 5640 (Type 2)
AMS 5641
AMS 5738
ASME SA194
ASTM A194
ASTM A194 (grade 8F)
ASTM A314
ASTM A320
ASTM A581
ASTM A582
MIL SPEC MIL-S-862
SAE 30303Se
ASTM A276
ASME SA320
ASTM A473
SAE J405
1) Structures in Buildings, bridges, railway stations.
2) Fabrication of pipeline components & Industrial equipment.
3) Construction of automotive bodies, warehouses, shipping containers.
4) Commercial appliances, etc.