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Chemical composition for steel materials A588 grade A,B and C ?

Steel materials A588 Grade A,A588 Grade B and A588 Grade C are from US.steel specification astm a588/a588m high strength low alloy strcutural steel with 345Mpa minimum yield point to 4 inch thickness.There is a little difference in chemical compositions for these three steel material grades as comparing table.

Xinsteel stockist EN 10204 3.1 a588 hot rolled steel plates,a588gra hot rolled angle bars,a588grb hot rolled flat bars,a588grb steel pipes and tubes for various steel dimensions.
 

Steel grades

A588GrA A588GrB A588GrC

Chemical composition: Heat Analysis  Max%

Standard

Grade

C

Mn

P

S

Si

Cr

Ni

Cu

V

ASTM A588/A588M

A588GrC

0.15

0.80-1.35

0.04

0.05

0.15-0.40

0.30-0.50

0.25-0.50

0.20-0.50

0.01-0.10

ASTM A588/A588M

A588GrB

0.20

0.75-1.35

0.04

0.05

0.15-0.50

0.40-0.70

0.50

0.20-0.40

0.01-0.10

ASTM A588/A588M

A588GrA

0.19

0.80-1.25

0.04

0.05

0.30-0.65

0.40-0.65

0.40

0.25-0.40

0.02-0.10

Mechanical Properties:

Thickness

Yield strength

Tensile strength

Mpa  Min.

Mpa

ASTM A588/A588M

A588GrC

T≤100

345

485 min.

ASTM A588/A588M

A588GrB

T≤100

345

485 min.

ASTM A588/A588M

A588GrA

T≤100

345

485 min.