Seamless steel tube for high temperature
Pic-(Seamless steel tube for high temperature)
Standard of implementation ： ASTM A106/ASME SA106
Note:① the maximum carbon content in the specified amount of carbon content per 0.01%, then the maximum manganese content in the specified amount of each increase of 0.06% manganese content, but the maximum not more than 1.35%;
Application: used in conveying water, oil, gas and other fluids.
Major steel grade： A106A 、 A106B 、 A106C and so on（After consultation, can also provide other special grade of steel pipe．）
Chemical composition and mechanical properties：
| Standard | Steel grade | Chemical constituents | |||||||||
| C | Mn | Si | Cu | Ni | Cr | Mo | V | P | S | ||
| ASTMA106/ ASMESA106 |
A | ≤ 0.25 | 0.27 ～ 0.93 | ≥ 0.10 | ≤ 0.40 | ≤ 0.40 | ≤ 0.40 | ≤ 0.15 | ≤ 0.08 | ≤ 0.035 | ≤ 0.035 |
| B | ≤ 0.30 | 0.29 ～ 1.06 | ≥ 0.10 | ≤ 0.40 | ≤ 0.40 | ≤ 0.40 | ≤ 0.15 | ≤ 0.08 | ≤ 0.035 | ≤ 0.035 | |
| C | ≤ 0.35 | 0.29 ～ 1.06 | ≥ 0.10 | ≤ 0.40 | ≤ 0.40 | ≤ 0.40 | ≤ 0.15 | ≤ 0.08 | ≤ 0.035 | ≤ 0.035 | |
| Mechanical properties | Tensile strength (MPa) | Yield strength (MPa) | |
| A | ≥ 330 | ≥ 205 | |
| B | ≥ 415 | ≥ 240 | |
| C | ≥ 485 | ≥ 275 | |
Note:① the maximum carbon content in the specified amount of carbon content per 0.01%, then the maximum manganese content in the specified amount of each increase of 0.06% manganese content, but the maximum not more than 1.35%;
②Cu, Cr, Ni, Mo, V these five elements and not greater than 1%;
| Type of steel tube | Outside diameter（D） | Wall thickness（S） | ||
| Cold drawn pipe | Outside diameter | Allowable tolerance | Wall thickness | Allowable tolerance |
| ＞30～50 | +0.3% | ≤25 | +10% | |
| ＞50～325 | +0.8% | |||
| Hot rolling tube | ＞6～168 | +1.0% | ≤25 | -10%，+12.5% |
