Item | Korea | Japan | America | United Kingdom | Uses |
Structural steel pipe |
Structural carbon steel pipe KSD3517/STKM |
Structural carbon steel pipe JISG3445/STKM |
ASTM A513 |
BS980 BS1717 BS1775 |
Machinery, automobiles, bicycles, home appliances, appliances, other mechanical parts |
Carbon steel pipe for general structure KSD3566/SPS |
Carbon steel pipe for general structure JISG3444/STK |
ASTM A500 |
BS980 BS1139 BS4848 |
Civil, construction, towers, springboards, pillars, railings and other structures |
|
Square steel pipe for general structure KSD3568/SPSR |
Square steel pipe for general structure JISG3466/STKR |
ASTM A500 |
BS4848 |