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ASTM A131 Grade A steel plate

Description: BBN steel is a well-known steel manufacturer and service provider in China, ASTM A131 Grade A steel plate is our superior product, we are favored by customers with high quality, competitive price and excellent service

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Lead Time:

Quantity(Metric Tons)	1 - 10	10 - 50	>50
Est. Time(days)	5	10	Negotiable

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Product Introduction

A131 Grade A steel plate is common strength shipbuilding plate which is mainly used for built hull of vessels, ship body construction.

A131/A Chemical Composition Max % for production analysis:

A131/A general Strength Chemical Composition
Grade	The Element Max (%)
Grade	C	Si	Mn	P	S	C+Mn/6
A131/A	0.21	0.50	2.5*C	0.035	0.035	0.40

Crack Sensitivity: Pcm = (C+Si/30+Mn/20+Cu/20+Ni/60+Cr/20+Mo/15+V/10+5B)%
Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%

A131/A Mechanical Property:

Grade		Mechanical Property			Charpy V Impact Test
Grade	Thickness	Yield	Tensile	Elongation	Degree	Energy 1	Energy 2
A131/A	mm	Min Mpa	Mpa	Min %	20	J	J
	t≤50	235	400-520	21%		-	-
	50＜t≤70	235	400-520	21%		-	-
	70＜t≤100	235	400-520	21%		-	-
Note: Energy 1 is transverse impact test, Energy 2 is longitudinal

Normally when rolling, Air rolled and Control Rolled is ok for ship plate A131 Grade A with the thickness equal and below 40 Millimeters, and for thickness above 40mm, the heat treatment shall be Normalized or TMCP, these two technical treatment would improve steel strength in yield and tensile points.

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ASTM A131 Grade A steel plate

Product Introduction

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