Seamless Carbon Steel Boiler Tubes for High-Presure Service
Size range: O.D.:6-168mm W.T.:1-15mm L: according to customer requirement
Steel Grade and Chemical Compositions:
| C | 0.06-0.18 |
| Mn | 0.27-0.63 |
| P | ≤0.035 |
| S | ≤0.035 |
| Si | ≤0.25 |
Mechanical Properties
| Tensil Streghth: min ksi[Mpa] 47[325] | |
| Yield Point: min ksi[Mpa] 26[180] | |
| Elongation: ≥35% |
Hardness
| Brinell Hardness | Rockwell Hardness Numbe |
| WT≥0.200in(5.1mm) | WT0.200in(5.1mm) |
| 137HRB | 77HRB |
| Tolerance for OD and WT(SA-450/SA-450M) | |||||
| OD in(mm) | + | - | WT in(mm) | + | - |
| 1''(25.4) | 0.10 | 0.10 | ≤1.1/2''(38.1) | 20% | 0 |
| 1''1.1''(25.438.1) | 0.15 | 0.15 | 1.1/2''(38.2) | 22% | 0 |
| 1.1/2''2''(38.150.8 | 0.20 | 0.20 | |||
| 2''2.1/2''(50.863.5) | 0.25 | 0.25 | |||
| 2.1/2''3''(63.576.2) | 0.30 | 0.30 | |||
| 3''4''(76.2101.6) | 0.38 | 0.38 | |||
| 4''7.1/2''(101.6190.5) | 0.38 | 0.64 | |||
| 7.1/29''(190.5228.6) | 0.38 | 1.14 | |||
Applications: for Boilers,Superheaters,Heat-Exchangers, high-pressure
