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ERW (Electric Resistance Welded Pipe)

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Square steel pipes for general structures

Purpose

Square steel pipes for general structures
Square steel pipes used in civil engineering, architecture and other structures
Used for a range of purposes such as building pillars, exteriors, fences, and machinery

Painted square steel pipes
Used for a range of purposes such as building pillars, exteriors, fences, and machinery
Painted square steel pipes used to save on labor costs. Easy to conduct work on-site due to anti-corrosive paint.

Specifications

Standards Size Range Certification standards Related standards
Outside Diameter Thickness
Square steel pipes for general structures 15 x 15 ~ 250 x 250
30 x 20 ~ 300 x 200
2" x 2" ~ 10" x 10"
1.0mm ~ 12.7mm KS D 3568
JIS G 3466
ASTM A500
BS 4848
AS/NZS 1163
EN 10219-1,2
Painted square steel pipes 15 x 15 ~ 125 x 125
30 x 20 ~ 125 x 75
1.0mm ~ 3.2mm - -

Carbon steel pipes for ordinary piping

Purpose

Carbon steel pipes for ordinary piping
Carbon steel pipes used for steam, water, oil, gas, and air piping with a relatively low operating pressure
(Water for industrial or irrigation purposes, ships, oil transportation, fire hydrants, etc.)

Carbon steel pipes for pressure piping
Carbon steel pipes used for pressure piping at temperatures below 350 ℃
(Boiler steam pipes, hydraulic pipes, hydraulic pipes, liquefied petroleum gas transportation, etc.)

Specifications

Standards Size Range Certification standards Related standards
Outside Diameter Thickness
Carbon steel pipes for ordinary piping 20A ~ 300A
27.2mm ~ 318.5mm
3/4" ~ 12"
1.0mm ~ 12.7mm KS D 3507
JIS G 3452
ASTM A53
BS 1387
Carbon steel pipes for pressure piping 20A ~ 300A
27.2mm ~ 318.5mm
3/4" ~ 12"
1.0mm ~ 12.7mm KS D 3562
JIS G 3454
ASTM A53

Steel pipes for general structures

Purpose

Steel pipes used in civil engineering, architecture, and pylons

Used for the construction of buildings, piles and steel structures.

Specifications

Standards Size Range Certification standards Related standards
Outside Diameter Thickness
Steel pipes for general structures
(ERW)
5/8" ~ 12"
15.9mm ~ 318.5mm
1.0mm ~ 12.7mm KS D3566
JIS G3444
ASTM A500
BS 980/1139/4848
EN 10219
AS/NZS 1163

Carbon steel pipes for machine structures

Purpose

Carbon steel pipes used in machinery, automobiles, aircraft, bicycles, home appliances, furniture, equipment, and other mechanical parts

ALCOAT steel pipes, CR steel pipes, PO steel pipes and HR material pipes, etc.

Specifications

Standards Size Range Certification standards Related standards
Outside Diameter Thickness
Carbon steel pipes for machine structures 15.9mm ~ 165.2mm 0.8mm ~ 7.1mm KS D 3517
JIS G 3445
ASTM A513
BS 980/1717/1775

Steel pipes for special structures

Purpose

POSMAC steel pipes
Zinc, magnesium and aluminum are plated, providing superior corrosion resistance over previous hot dip galvanized products.
Better corrosion resistance than stainless steel, and can be applied to various fields such as high temperature and highly humid environments, building exterior materials, air conditioners, outdoor units, and fences. Also suitable for offshore facilities, shipbuilding and power plants, etc.

High strength steel pipes
Yield strength (YP value) of above 550 Mpa and tensile strength (TS value) of above 700 MPa. A significant reduction in fixed load helps to reduce transportation and labor costs and improve safety.
For system scaffolding, distribution warehouses and built-in finished steel, etc.

Specifications

Standards Size Range Certification standards Related standards
Outside Diameter Thickness
POSMAC steel pipes 27.2mm ~ 318.5mm 1.0mm ~ 6.0mm - -
High strength steel pipes 27.2mm ~ 139.8mm 1.0mm ~ 2.3mm KS D 3566 -
POSMAC square steel pipes 15 x 15 ~ 250 x 250
30 x 20 ~ 300 x 200
1.0mm ~ 6.0mm - -
High strength square steel pipes 30 x 30 ~ 125 x 125
40 x 20 ~ 150 x 100
1.0mm ~ 2.3mm KS D 3568 -

Steel pipes for building structures

Purpose

Steel pipes that absorb seismic energy and ensure the seismic stability of buildings. Used to support skyscrapers and large buildings. Suitable for large structures such as stadiums and gymnasiums.

Specifications

Standards Size Range Certification standards Related standards
Outside Diameter Thickness
Carbon steel pipes for building structures
(ERW)
5/8" ~ 12"
15.9mm ~ 318.5mm
1.0mm ~ 12.7mm KS D 3632 KS D 3532
EN 10219
JIS G 3475
Square steel pipes for building structures
(ERW)
25 x 25 ~ 250 x 250
30 x 20 ~ 300 x 200
2" x 2" ~ 10" x 10"
1.0mm ~ 12.7mm KS D 3864 KS D 3864
EN 10219