| Grade(UNS): |
304/304L;316/316L;321;310S |
| Outside Dia: |
6 -325mm(1/4" – 12.75") |
| Wall Thickness: |
0.50-22mm |
| Standards(Norm): |
DIN 17456/17458, ASTM A213/A269/A312/A790/A270, ASME SA213/SA312/SA269/SA270 |
| Application |
Chemical and petrochemical industry, Oil and gas applications, Mechanical and plant engineering and construction |
| Surface |
Pickled/polished outside/polished outside and inside surface |
| Length |
Random length or fix length, Max length is 13M/43FT |
| Package |
knitting strip bundle/wooden box |
Steel tube is manufactured to a set outside diameter and wall thickness (e.g. 1.5” OD, 0.065” wall), while
Steel pipe is specified by a “nominal” (not actual) inside diameter. The wall thickness of pipe is described by the “schedule”. For example, schedules 5 and 40 pipe have wall thicknesses of 0.065” and 0.109” respectively.
Chemical composition
| Grade |
Chemical Composition |
| C max |
Si max |
Mn max |
P max |
S max |
Ni |
Cr |
Mo |
Others |
| TP 304 |
0.08 |
0.75 |
2 |
0.04 |
0.03 |
8 - 11 |
18 - 20 |
|
|
| TP 304L |
0.035 |
0.75 |
2 |
0.04 |
0.03 |
8 - 13 |
18 – 20 |
|
|
| TP 310S |
0.08 |
0.75 |
2 |
0.045 |
0.03 |
19 - 22 |
24 -26 |
0.75 max |
|
| TP 316 |
0.08 |
0.75 |
2 |
0.04 |
0.03 |
10 - 14 |
16 – 18 |
2 – 3 |
|
| TP 316L |
0.035 |
0.75 |
2 |
0.04 |
0.03 |
10 - 15 |
16 - 18 |
2 - 3 |
|
| TP 317 |
0.08 |
0.75 |
2 |
0.04 |
0.03 |
11 - 14 |
18 - 20 |
3 - 4 |
|
| TP 321 |
0.08 |
0.75 |
2 |
0.04 |
0.03 |
9 - 13 |
17 - 20 |
|
Ti: 5×C% |
| Mechanical Properties |
| Grade |
Tensile
Strength Mpa, (Min) |
Yield
Strength
Mpa, (Min) |
%Age
Elongation
in 50mm
gauge length min |
Hardness (Max) |
| BHN |
Rb |
| 301 |
585 |
244 |
56 |
197 |
75 |
| 304 |
585 |
244 |
56 |
191 |
72 |
| 304L |
585 |
210 |
56 |
191 |
72 |
| 310S |
615 |
245 |
56 |
197 |
75 |
| 316 |
615 |
245 |
57 |
197 |
75 |
| 316L |
585 |
215 |
56 |
197 |
75 |
| 321 |
615 |
245 |
56 |
197 |
75 |
