Standard：
ASTM A179
ASME SA179
application：
Suitable for tubular heat exchangers, condensers and similar heat transfer equipment。
Main steel grade：
A179、SA179
Other grades of steel pipes may also be supplied upon negotiation.。
Standard | Brand | tensile strength (MPa) | Yield Strength(MPa) | Elongation(%) |
| ASTM A179/ASME SA179 | A179/SA179 | ≥325 | ≥180 | ≥35 |
Standard | Brand | chemical composition | |||||||||
| C | Si | Mn | P | S | Cr | Mo | Cu | Ni | V | ||
| ASTM A179 ASME SA179 | A179 SA179 | 0.06～0.18 | / | 0.27～0.63 | ≤0.035 | ≤0.035 | / | / | / | / | / |
| HR：hot rolled | CW：cold worked | SR：stress relieved |
| A：annealed | N：normalized | HF： |
The seamless steel tube is a long strip of steel with a hollow section and no seams around it. Steel pipes have a hollow section and are used in large quantities as pipes for transporting fluids, such as pipes for transporting oil, natural gas, gas, water and certain solid materials.
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