无镀层及热浸镀锌焊接与无缝公称管
NON PLATING CONTING AND HOT DIPPING GALVANIZING WELDED AND SEAMLESS NOMINAL STEEL PIPE
标准 Standard
ASTM A53…………美国材料与试验协会标准Standard of American Society for Testing ＆ Materials
用途 Application：
适用于作受力及承压件，也可以用于一般用途的蒸汽、水、气体及空气管线。
It is applied as pressed and forced parts and as pipeline for steam , water,gas and atmosphere delivery.
主要生产钢管牌号 Main Steel Tube Grade:
A53A、A53B等（etc）
经协商，也可供应其他牌号的钢管
Other grade can also be provided after consulting with customers:
化学成分、机械性能Chemical composition ＆ Mechanical Properties
标准
Standard | 牌号
Grade | 化学成分 Chemical Composition（%） | 机械性能 Mechanical Properties |
| C | Si | Mn | P | S | Cr | Mo | V | Cu | Ni | 抗拉强度（Mpa）
Tensile Strength | 屈服强度（Mpa）
Yield Strength |
| ASTM A53 | A | ≤0.25 | — | ≤0.95 | ≤0.05 | ≤0.045 | ≤0.40 | ≤0.15 | ≤0.08 | ≤0.40 | ≤0.40 | ≥330 | ≥205 |
| B | ≤0.30 | — | ≤1.20 | ≤0.05 | ≤0.045 | ≤0.40 | ≤0.15 | ≤0.08 | ≤0.40 | ≤0.40 | ≥415 | ≥240 |
