ASTM A572 high strength low alloy steel plate

ASTM A572 high strength low alloy steel is low alloy structural steel standard, which cover five grades A572 Grade 42, Grade 50, Grade 55, Grade 60, Grade 65 with different tensile strength. For applications where notch toughness is important, our ASTM A572 steel is suitable for specific Charpy V-notch toughness requirements. 
 

ASTM A572 equivalent

Material no.	EN10025-2	ASTM	DIN 17100	JIS G3106	GB/T1591
1.0045	S355JR	ASTM A572	St52-3	SM490A	Q345B

 
Chemical composition (%) in plates and bars

Grades	Thickness	Carbon, max	Manganese, max	Phosphorus, max	Sulfur, max	Silicon, max
Grade 42	6inch	0.21	1.35	0.030	0.030	0.40
Grade 50	4inch	0.23	1.35	0.030	0.030	0.40
Grade 55	2inch	0.25	1.35	0.030	0.030	0.40
Grade 60	1-1/4inch	0.26	1.35	0.030	0.030	0.40
Grade 65	½ to 1-1/4inch	0.23	1.65	0.030	0.030	0.40
Grade 65	Below ½inch	0.26	1.35	0.030	0.030	0.40

 
Mechanical properties in plates and bars

Grades	Yield Strength min, MPa [ksi]	Tensile Strength  min., MPa [ksi]	Elongation % min., in 200 mm	Elongation % min., in 50 mm
Grade 42	290 [42]	415[60]	20	24
Grade 50	345 [50]	450[65]	18	21
Grade 55	380 [55]	485[70]	17	20
Grade 60	415 [60]	520[75]	16	18
Grade 65	450 [65]	550[80]	15	17

 
As a leading alloy steel carbon steel plate supplier in China, our company will offer high quality A572 Grade 50 alloy steel plates, A572 Grade 60 steel sheet and A572 Grade 65 plate price with direct factory sale. Our ASTM A572 low alloy steel plate and sheets can be used for riveted or bolted construction of bridges or welded construction.