What is ASTM A53 Grade A?
It is suitable for welding and forming operations involving coiling, bending and flanging, subject to certain qualification requirements. A53 covers seamless and welded, black and hot-dip galvanized nominal (average) wall pipe for coiling, bending, flanging and other special purposes, and is suitable for welding.
ASTM A53 Grade A steel pipe refers to the foreign standard steel pipe grade, which is the American standard grade, among which A53-A corresponds to the domestic 10# material.
ASTM A53 Grade A steel pipe is divided into two types: A53-A and A53-B. A53-A is a low carbon steel and A53-B is a medium carbon steel. ASTM A53 steel pipe is mainly used to transport fluids, such as water, gas, air, oil and heating steam. It is divided into two types: seamless steel pipe and welded steel pipe. The manufacturing process of seamless steel pipe can be divided into hot rolling and cold drawing. There are two types. Its pipe ends include flat end, threaded end and socket end.
ASTM A53 Grade A Properties Chemical Properties
| Carbon | Silicon | Manganese | Phosphorous | Sulphur | Molybdenum | Nickel | Chromium | Copper | Others |
|---|---|---|---|---|---|---|---|---|---|
| 0.25 | – | 0.95 | 0.05 | 0.045 | 0.15 | 0.4 | 0.4 | 0.4 | V 0.08 |
Mechanical Properties
| Yield Strength | Tensile Strength | Elongation A5 min | |||
|---|---|---|---|---|---|
| MPa min | ksi min | MPa min | MPa min | ksi min | Percentage |
| 30 | 330 | – | 48 | ||
Equivalent Designation
| DIN | EN | BS | NFA | ASTM | ASME |
|---|---|---|---|---|---|
| DIN 17175 Grade St 35-8 | – | NFAA 49-215 Grade TU 37-c | ASTM A53 Grade A | ASME SA 53 Grade A | – |
