KS SS400 Steel — Specifications & Listings

KS D3503

KS SS400 is a general structural steel specified under Korean Standard KS D3503, equivalent to JIS SS400 and ASTM A36. It offers good weldability and formability, widely used in construction, bridges, machinery and general fabrication across Korea.

Category: Mild Steel

Grade Details

Grade	KS SS400
Standard	KS D3503
Description	KS SS400 is a general structural steel specified under Korean Standard KS D3503, equivalent to JIS SS400 and ASTM A36. It offers good weldability and formability, widely used in construction, bridges, machinery and general fabrication across Korea.
Applications	structural fabrication,bridges,buildings,machinery frames,general construction,welded structures,plates,sections

Equivalent / Similar Grades

Grade	Standard	Region
SS400	JIS G3101	Japan
ASTM A36	ASTM	USA
S275JR	EN 10025	Europe
IS 2062 E250A	IS 2062	India
Q235B	GB/T 700	China
St3sp	GOST 380	Russia

Chemical Composition (%)

C	Mn	P	S
<=0.25	<=1.50	<=0.050	<=0.050

Mechanical Properties

tensile_strength	400-510 MPa
yield_strength	245 MPa min
elongation	21-23 %

Typical Available Sizes

Plate	6-100 mm
Flat Bar	10-150 mm
Round Bar	16-200 mm

Sizes are indicative. Contact seller for exact availability.

Active KS SS400 Listings on M-EX

No active KS SS400 listings at this time.