ASTM A285 Grade A Boiler steel plate

ASTM A285 standard is for carbon steel, low and intermediate tensile strength steel plates intended for fusion-welded pressure vessels.

The steel plate under ASTM A285 ranges in three grades, A, B and C, most common use is ASTM A285 Grade C plates.
Which shall be made by killed, semi-killed, capped or rimmed steel practices at manufacturer's option.

Thickness: 6MM to 300MM,
Width: 1500mm to 4050mm,
Length: 3000mm to 15000mm
 

A285 grade A Chemical Composition
Grade	The Element Max (%)
	C	Si	Mn	P	S
A285 grade A	0.17	0.08-0.45	0.98	0.035	0.035

Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%

Grade		A285 grade A Mechanical Property
	Thickness	Yield	Tensile	Elongation
A285 grade A	mm	Min Mpa	Mpa	Min %
	6-50	165	310-450	30%
	50-200	165	310-450	27%

Referenced Documents:

ASTM Sandards:A20/A20M: General requirements for steel plates for pressure vessels.

General Requirements and Ordering Information:
Testing and retesting methods, procedures, dimension tolerance, mass, quality and repair defects, marking, loading and ordering information shall comply with A20/A20M.
In additional to basic requirements, certain supplementary requirements are available.
Coils are excluded from A285 until they have been cutted to plate.