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Stainless
steel
STAINLESS STEEL
Stainless steel is a type of steel that contains chromium, which makes it highly resistant to rust and corrosion. Stainless steel is commonly used in many industries, including construction, automotive, and aerospace, due to its durability and aesthetic qualities. Here is a brief description of stainless steel pipe, tube, flange, fastener, fittings, and round bar.
Stainless steel has many desirable properties that contribute greatly to its
widespread application in the making of parts and components across many
industrial sectors. Above all, because of its chromium content, it is extremely
resistant to corrosion.
Specifications :
| ASTM | A312, A376,A358, A269, A249, A403, A182, A351 |
|---|---|
| ASME | SA312, SA376, Pressure SA358, SA269, SA249,SA403, SA182, SA351 |
Chemical Compositions :
| Grade | C | Cr | Ni | Mo | Others |
|---|---|---|---|---|---|
| 304 | 0.08 | 18.0~ 20.0 | 8.00~ 10.50 | - | - |
| 304L | ~0.030 | 18.0~ 20.0 | 9.00~ 13.00 | - | - |
| 310S | ~0.08 | 24.0~ 26.0 | 19.0~ 22.0 | - | - |
| 316 | ~0.08 | 16.0~ 18.0 | 10.0~ 14.0 | 2.00~ 3.00 | - |
| 316L | ~0.08 | 16.0~ 18.0 | 12.0~ 15.0 | 2.00~ 3.00 | - |
| 316Ti | 0.08 | 16.0~ 18.0 | 10.0~ 14.0 | 2.00~ 3.00 | Ti 5xC% ~ |
| 317L | 0.03 | 18.0~ 22.0 | 11.0~ 15.0 | 3.00~ 4.00 | - |
| 321 | ~0.08 | 17.0~ 19.0 | 9.00~ 13.0 | - | Ti 5xC%~ |
| 347 | 0.08 | 17.0~ 19.0 | 9.00~ 13.0 | - | Nb10xC%~ |
Mechanical Properties :
| Grade | Yield Strength (0.2%) (N/mm² |
Tensile Strength (N/mm²) |
Elongation (%) | Hardness (Hv) |
|---|---|---|---|---|
| 304 | 205~ | 520~ | 40~ | ~200 |
| 304L | 175~ | 480~ | 40~ | ~200 |
| 310S | 205~ | 520~ | 40~ | ~200 |
| 316 | 205~ | 520~ | 40~ | ~200 |
| 316L | 175~ | 480~ | 40~ | ~200 |
| 316Ti | 205~ | 520~ | 40~ | ~200 |
| 317L | 175~ | 480~ | 40~ | ~200 |
| 321 | 205~ | 520~ | 40~ | ~200 |
| 347 | 205~ | 520~ | 40~ | ~200 |
Physical Properties :
| Grade | Specific Heat J/g °C | Specific Gravity | Thermal Expansion Coefficient W/m·°C (20-100°C) |
Thermal Conductivity W/m·°C (100°C) |
|---|---|---|---|---|
| 304 | 0.50 | 7.93 | 17.3 | 16.3 |
| 304L | 0.50 | 7.93 | 17.3 | 16.3 |
| 310S | 0.50 | 7.98 | 15.9 | 14.2 |
| 316 | 0.50 | 7.98 | 15.9 | 16.3 |
| 316L | 0.50 | 7.98 | 15.9 | 16.3 |
| 316Ti | 0.50 | 7.98 | 15.9 | 16.3 |
| 317L | 0.486 | 7.98 | 16.5 | 14.4 |
| 321 | 0.50 | 7.93 | 16.7 | 16.1 |
| 347 | 0.50 | 7.98 | 16.7 | 16.1 |