Torich International Limited
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ASTM A192 Seamless carbon steel boiler tubes for high presure service
Seamless Carbon Steel Boiler Tubes for High-Presure Service
Size range: O.D.:6-168mm W.T.:1-15mm L: according to customer requirement
Applications: for Boilers,Superheaters,Heat-Exchangers, high-pressure
Steel Grade and Chemical Compositions% max:
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) | WT＜0.200in(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''(25.4～38.1) | 0.15 | 0.15 | ＞1.1/2''(38.2) | 22% | 0 |
| ＞1.1/2''～＜2''(38.1～50.8 | 0.20 | 0.20 | |||
| 2''～＜2.1/2''(50.8～63.5) | 0.25 | 0.25 | |||
| 2.1/2''～＜3''(63.5～76.2) | 0.30 | 0.30 | |||
| 3''～＜4''(76.2～101.6) | 0.38 | 0.38 | |||
| 4''～＜7.1/2''(101.6～190.5) | 0.38 | 0.64 | |||
| ＞7.1/2～9''(190.5～228.6) | 0.38 | 1.14 |
