ASTM A131 Grade A, B, C and D Steel Work / Steel Structure / Steel Machining Parts

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10-May-2024

According to the minimum yield point,the strength level for shipbuilding steel grades are divided into general strength structure steel and high strength structure steel. ASTM A131 Grade A, B, C and D Steel machining parts is fabricated by the general strength steel material. The classification society for ASTM A131 Grade A, B, C and D steel work can be ABS, LR, DNV, BV, GL, CSS etc. The Grade A, B, C and D Steel Work usually is used in the manufacturing of the hull structure of the ship.

ASTM A131 Grade A, B, C and D Steel Work Chemical Composition Analysis

ASTM A131	% max
ASTM A131	C	Si	Mn	P	S
GR. A	0.21	0.50	2.5×C	0.035	0.035
GR. B	0.21	0.35	0.60	0.035	0.035
GR. C	0.21	0.10~0.35	0.60	0.035	0.035
GR. D	0.18	0.10~0.35	0.70	0.035	0.035

ASTM A131 Grade A, B, C and D steel structure Mechanical Properties

Grade

Yield strength

MPa

Tensile strength

MPa

Elongation

Min,%

200mm

50mm

ASTM A131 A,B,C,D

400~520

235min

Different packaging of ASTM A131 Grade A, B, C and D Steel Structure are made in accordance with national requirements.

ASTM A131 Grade A, B, C and D Steel plate specification

Thickness: 6mm-60mm

Width: 1500mm~4500mm

Length: 5000mm-15000mm

We can supply both the steel plates and steel works for ASTM A131 Grade A, B, C and D. The dimension for Steel machining parts can be customized according to your drawing and requirement. And KUNFENG can offer cutting, bending, drilling and welding service for you.