Size 50*30---800*300mm
W.T 2.5—30 mm
Length 2—12 m
JIS G3466 JIS is specified the carbon steel square pipes , hereinafter referred to as the square tubes, used for civil engineering architecture and other structures
Chemical compostion
Desination of grade | Chemical Composition | ||||
C | Si | Mn | P | S | |
STKR 400 | 0.25 max | 0.04 max | 0.04 max | ||
STKR 490 | 0.18 max | 0.55 max | 1.5 max | 0.04 max | 0.04 max |
Mechanical properties
Designation of grade | Tensile strength | Yield strength | Elongation |
N/mm2 | N/mm2 | % | |
STKR 400 | 400min | 245 min | 23min |
STKR 490 | 490 min | 325 min | 23 min |
Application : bridge construction, steel structure, machine manufacturing, greenhouse building, fence pipe
Package: hexagonal bundled or loose packing.
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