Construction Machinery (A514 Quenched and Tempered Alloy Steel)

Application > Construction Machinery (A514 Quenched and Tempered Alloy Steel)

Construction Machinery (A514 Quenched and Tempered Alloy Steel)

product details

1 Main use
This type of product is a high yield strength steel plate with a yield strength of over 690 MPa and good weldability. Suitable for construction machinery, large electric excavators, bulldozers, dump trucks, oil and gas pipelines, drilling platforms, drilling machinery, quarrying machines (hydraulic supports and dozers, etc.), welded bridges and other steel structures.
2 grades and standards
Grade: Grade A ~ T; Executive Standard: A514/A514M
3 Technical conditions of supply
3.1 Product Specifications:
6~200mm×2200~3800mm×6000~12000mm
3.2 Chemical composition
Table 1 chemical composition, %

Steel Grade	C	Si	Mn	P	S	Cr, Ni, B, etc.
GradeA	0.15-0.21	0.40-0.80	0.80-1.10	≤0.035	≤0.035	适量
GradeC	0.10-0.20	0.15-0.30	1.10-1.50	≤0.035	≤0.035
GradeT	0.08-0.14	0.40-0.60	1.20-1.50	≤0.035	≤0.035

3.3

Table 2 Mechanical performance

Steel Grade	Thickness mm	Yield Strength σs, MPa	Tensile Strength σb, MPa	Elongation rate δ50, %	Reduction of area ψ，%	Brinell hardness
Grade A ～T	6~20	≥690	760~895	≥18	≥40（plate）	235-295（≤10 mm thickness ）
	＞20-65	≥690	760~895	≥18	≥40（plate）
	＞65-100	≥620	690~895	≥16	≥50（Round bar )