A283/Q195 Carbon Steel Plate Description

Product Overview
ASTM A283 is a standard specification for low and intermediate tensile strength carbon steel plates of structural quality for general application. It covers four grades (A, B, C, D) with incrementally higher minimum yield and tensile strength requirements. Q195 is a comparable Chinese standard (GB/T 700) grade, often supplied as an equivalent.

Key Features

Material Type: Low-carbon mild steel

Primary Characteristic: Good weldability, formability, and machinability

Common State: Typically supplied in the hot-rolled, as-rolled condition

Main Application: General structural components, building frames, platforms, truck parts, and machinery where high strength is not the primary requirement.

Product Parameters

Parameter	Specification
Product Name	ASTM A283 / Q195 Structural Steel Plate
Standard Grades	A283 Grade A, B, C, D / Q195 (GB)
Production Process	Hot Rolling (Primary)
Applicable Standards	ASTM A283, ASME SA283, GB/T 700, etc.
Thickness Range	3 mm – 150 mm (Common industrial range)
Width Range	1000 mm – 3000 mm
Length Range	1000 mm – 12000 mm (or Customized)
Delivery Condition	As-Rolled, Annealed
Surface Finish	Mill Scale , Pickled , Shot Blasted

Chemical Composition (ASTM A283, %)

Grade	C max.	Mn max.	P max.	S max.	Si (for thickness ≤ 1/2 in.)	Si (for thickness > 1/2 in.)	Cu min. (when specified)
A	0.14	0.90	0.035	0.04	0.40	0.15-0.40	0.20
B	0.17	0.90	0.035	0.04	0.40	0.15-0.40	0.20
C	0.24	0.90	0.035	0.04	0.40	0.15-0.40	0.20
D	0.27	0.90	0.035	0.04	0.40	0.15-0.40	0.20

echanical Properties (ASTM A283)

Grade	Tensile Strength	Yield Strength (min.)	Elongation (min. %)*
	psi	MPa	psi	MPa	in 8 in.	in 2 in.
A	45,000 – 60,000	310 – 415	24,000	165	27	30
B	50,000 – 65,000	345 – 450	27,000	185	25	28
C	55,000 – 75,000	380 – 515	30,000	205	22	25
D	60,000 – 80,000	415 – 550	33,000	230	20	23

Physical Properties

Property	Metric	Imperial
Density	7.85 g/cm³	0.284 lb/in³
Modulus of Elasticity	~200 GPa	~29,000 ksi

Scope of Application

ASTM A283 steel plate is a kind of low carbon steel with high strength and good formability. It is easy to process and manufacture, and can be safely welded by various welding methods. ASTM A283 steel plate is a structural carbon steel plate used for low or medium tensile strength applications. ASTM A283 steel plate is used in the manufacture of riveted, bolted and welded structures for storage tanks and cryogenic control vessels, bridges and buildings, including prefabricated buildings, warehouses and industrial commercial structures.

PACKING AND DELIVERY

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