Incheon plant is specialized in the production of essential steel pipes for steel structures such as KS general plumbing, construction, bridges, telephone poles, furniture, and recreational facilities.
In particular, our KS and JIS-certified square tubes are exported to over 30 countries around the world and have received positive feedback from customers in terms of quality and delivery.
In addition to Square tubes, we offer a great product selections with a wide range of rectangular tubes.
| Size Range | Outside Diameter : 1/2" ~ 12"(42.1mm ~ 323.9mm) Thickness : 0.055" ~ 0.500"(1.4t ~ 12.7t) |
|---|---|
| Purpose | For use in ordinary piping and pressure piping General structural purpose (round steel pipes, square steel tubes, rectangular steel tubes) |
| Size Range | Thickness : 1.2t ~ 12.0t Width : 550mm ~ 1,650mm(30mm ~ 1,650mm) |
|---|
| Square (M/M standard, INCH standard) | |||
|---|---|---|---|
| □ 15 x 15 | |||
| □ 19 x 19 | |||
| □ 21 x 21 | |||
| □ 25 x 25 | 30 x 20 | ||
| □ 30 x 30 | 40 x 20 | ||
| □ 40 x 40 | 1 1/2" x 1 1/2" | 50 x 30 | 2" x 1" |
| □ 50 x 50 | 2" x 2" | 60 x 40 | 2 1/2" x 2 1/2" |
| □ 60 x 60 | 2 1/2" x 2 1/2" | 75 x 45 75 x 50 80 x 40 |
3" x 2" |
| □ 75 x 75 | 3" x 3" | 100 x 50 | 4" x 2" |
| □ 90 x 90 | 3 1/2" x 3 1/2" | 100 x 75 125 x 50 |
4" x 3" 5" x 2" |
| □ 100 x 100 | 4" x 4" | 125 x 75 150 x 50 |
5" x 3" 6" x 2" |
| □ 125 x 125 | 5" x 5" | 150 x 100 | 6" x 4" |
| □ 150 x 150 | 6" x 6" | 200 x 100 175 x 125 |
8" x 4" 7" x 5" |
| □ 175 x 175 | 7" x 7" | 250 x 100 200 x 150 |
10" x 4" 8" x 6" |
| □ 200 x 200 | 8" x 8" | 250 x 150 300 x 100 |
10" x 6" 12" x 4" |
| □ 250 x 250 | 10" x 10" | 300 x 200 | 12" x 8" |
| Category | Korea | Japan | US | UK | Where to use |
|---|---|---|---|---|---|
| Steel pipes for structures | Steel pipes for machine structures KS D3519/STKM |
Steel pipes for machine structures JIS G3445/STKM |
ASTM A513 | BS 980 BS 1717 BS 1775 |
Steel pipes used in machinery, automobiles, bicycles, furniture, and machine parts |
| Carbon steel pipes for general structures KS D3566/SPS |
Carbon steel pipes for general structures JIS G3444/STK |
ASTM A500 | BS 980 BS 1139 BS 4848 |
Steel pipes used for structures in civil engineering, architecture, steel towers, scaffolding, piles, railings, and fence supports | |
| Square steel pipes for general structures KS D3568/SPSR |
Square steel pipes for general structures JIS G3466/STKR |
ASTM A500 | BS 4848 | Steel pipes used in civil engineering, construction and other structures |
| Category | Korea | Japan | US | UK | Where to use |
|---|---|---|---|---|---|
| Steel pipes for piping | Carbon steel pipes for piping KS D3507/SPP |
Carbon steel pipes for piping JIS G3452/SGB |
ASTM A53 | BS 1387 | Steel pipes for steam, air, water, oil and gas piping with a relatively low operating pressure |
| Carbon steel pipes for fuel gas piping KS D3631/SPPG |
Supply pipes for fuel gas (city gas and LPG) with a working pressure below medium | ||||
| Pressure piping | Carbon steel pipes for pressure piping KS D3562/SPPS |
Carbon steel pipes for pressure piping JIS G3454/STP |
ASTM A53 API 5LA |
Steel pipes for piping used in temperatures below 350 °c |
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