Complaint
Chemical Composition
| Common steel grade of stainless steel pipe/tube | |||||||||
| Grade | Chemical Composition (%) | Mechanieal Performece | |||||||
| C | Si | Mn | P | S | Ni | Cr | Other | Hardness | |
| 201 | ≤0.15 | ≤1.00 | 5.5/7.5 | ≤0.060 | ≤0.030 | 3.5/5.5 | 16.0/18.0 | - | HB≤241,HRB≤100, HV≤240 |
| 202 | ≤0.15 | ≤1.00 | 7.5/10 | ≤0.060 | ≤0.030 | 4.0/6.0 | 17.0/19.0 | - | HRB≤195, HV≤218 |
| 304 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.03 | 8.0/11.0 | 18.00/20.00 | - | HB≤187,HRB≤90,HV≤200 |
| 316 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.03 | 10.00/14.00 | 16.0/18.0 | Mo:2.00/3.00 | HB≤187, HRB≤90 HV≤200 |
| 316L | ≤0.03 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.03 | 10.00/14.00 | 16.0/18.0 | Mo:2.00/3.00 | HB≤187, HRB≤90 HV≤200 |
| 321 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.03 | 9.00/12.00 | 17.0/19.0 | Ti:5C-0.70 | HRB≤90, HV≤200 |
| 410 | ≤0.15 | ≤1.00 | ≤1.25 | ≤0.060 | ≤0.030 | ≤0.060 | 11.5/13.5 | - | HB≤183, HRB≤88 HV≤200 |
| 430 | ≤0.12 | ≤1.00 | ≤1.25 | ≤0.040 | ≤0.03 | - | 16.00/18.00 | - | HB≤183, HRB≤88 HV≤200 |
Surface Difference
No.1 (hot rolled): After hot rolling, annealing, pickling and dephosphorization. The surface of the treated steel plate is a dull surface, a bit rough.
