Sheets, Plates & Coils

Chromoly is an abbreviation for "chromium-molybdenum steel". Chromoly is an alloy used to produce tubing for bicycle frames and race-car roll cages. It is not as lightweight as some steel alloys, but has the advantages of high tensile strength and malleability. It is also easily welded and is considerably stronger and more durable than standard (1020) steel tubing.

Chemical Composition of Sheets/ Plates
ASTM	Grade	C max	Mn max	P max	S max	Si max	Ni	Cr	Mo	Pipe Fittings
A387 Class 1 Class 2	5	0.15	0.30-0.60	0.04	0.03	0.5		4.00-6.00	0.45-0.65
	9	0.15	0.30-3.60	0.03	0.3	1		8.00-10.0	0.90-1.10
	11	0.04-0.17	0.40-0.65	0.04	0.04	0.50-0.80		1.00-1.50	0.45-0.65
	12	0.04-0.17	0.40-0.65	0.04	0.04	0.15-0.40		0.80-1.15	0.45-0.60
	22	0.05-0.17	0.30-0.60	0.04	0.035	0.5		2.00-2.50	0.90-1.10

Mechanical Requirements				Hardness
ASTM	Grade	Tensile Strength Apa (ksi) min		Yield Strength Mpa (ksi)min		Elongation min%	Brinel max HB	Rockwell max HRB
		Class 1	Class 2	Class1	Class2
A387 Class 1 Class 2	5	415-585	515-690	205	310	18	202	92
	9	415-585	515-690	205	310	18	217	95
	11	415-585	515-690	240	310	22	217	95
	12	380-550	450-585	230	275	22	217	95
	22	415-585	515-690	205	310	18	201	92