ASTM A514 Gr Q alloy steel plate specification

ASTM A514 Gr Q (ASTM A514 Grade Q) steel is a high-yield-strength, quenched and tempered alloy steel plate. It offers high yield strength and high tensile strength with weldable, machinable properties. As a leading supplier of carbon steel and alloy steel plate in China, our company will supply high quality A514 Gr Q plate and deep processing service like cutting, drilling, welding, milling and beveling.
ASTM A514 Gr Q plate specification   
Thickness: 4mm-150mm
Width:1000mm-4000mm
Length: 4000mm-12000mm
Surface Treatment: Shot blasting and painting or coated
Delivery condition: quenched and tempered
 

A514 Gr Q steel equivalent

ASTM A514	ASME SA514
A514 GrQ	SA514 GrQ

 
Chemical composition (%)

Elements	Grade Q
Carbon	0.14-0.21
Manganese	0.95-1.30
Phosphorous,max	0.030
Sulfur,max	0.030
Silicon	0.15-0.35
Nickel	1.20-1.50
Chromium	1.00-1.50
Molybdenum	0.40-0.60
Vanadium	0.03-0.08

Mechanical properties

Thickness	Tensile strength, kis [MPa]	Yield strength, min, kis [MPa]	Elongation in 8 in. [200 mm], min, %	Brinell hardness , HBW
1.5 to 20mm	110 to 130[760 to 895]	100 [690]	18	235 to 293
20 to 65mm	110 to 130[760 to 895]	100 [690]	18	-
65 to 150mm	110 to 130[690 to 895]	90 [620]	16	-

 
For application, A514 Gr Q alloy steel plate is used in places requiring high tensile strength and high yield strength like lifting gears for engineering vehicles, large excavators, and racks for offshore platforms.