Products / High Tensile Steel

High Tensile Steel

High Tensile Steel · Fy ≥ 345 MPa

High Tensile Steel for Heavy Structural, Machinery, and Engineering Applications Requiring High Strength with Reduced Weight

GRADE SPECIFICATIONS

Steel Grades & Mechanical Properties

Grade	Standard	Yield (Fy)	Tensile (Fu)	Elongation	Application
A572 Gr.50	ASTM A572	≥ 345 MPa	450 MPa	≥ 18%	Modern Structural Applications
SM490YA	JIS G3106	≥ 345 MPa	490–610 MPa	≥ 17%	Structural Welded Applications
SM490YB	JIS G3106	≥ 345 MPa	490–610 MPa	≥ 17%	CVN-Tested Welded Steel Structures
ST52-3 / S355J2	EN 10025	≥ 355 MPa	490–630 MPa	≥ 20%	EU high-strength structural
S355J2+N	EN 10025	≥ 355 MPa	490–630 MPa	≥ 20%	Normalized · offshore structure
HT50 / SM570	JIS G3106	≥ 450 MPa	570–720 MPa	≥ 19%	Heavy crane · bridge girder

WEIGHT TABLE

Plate Weight Table (kg/plate) · Click a Row to Select Thickness

Thickness (mm)	5×10 ft 1524×3048 mm	5×20 ft 1524×6096 mm
12 mm	437.6	875.1
16 mm	583.4	1166.9
19 mm	692.8	1385.6
22 mm	802.2	1604.4
25 mm	911.6	1823.2
32 mm	1166.9	2333.7
38 mm	1385.6	2771.3
50 mm	1823.2	3646.4
65 mm	2370.2	4740.4
75 mm	2734.8	5469.7

ρ = 7.85 g/cm³ · Unit: kg/plate

Quality Assurance

Every plate is supplied with a Mill Test Certificate (MTC) detailing the Heat Number, Chemical Composition, Mechanical Test Results, and full material traceability.

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