GB/T 3077 12Cr1MoV steel round bars

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11-May-2024

GB/T 3077 12Cr1MoV alloy structural steel round bar, has good resistance to oxidation and to heat. So 12Cr1MoV round bars can be used as the raw material of boiler superheater and containers which requires high pressure and super pressure power plants.

GB/T 3077 12Cr1MoV steel round bar can be produced into hot rolled round bars and square bars, cold-drawing bars,forged bars. We henan KUNFENG can supply GB/T 3077 12Cr1MoV all of shapes.

According to the market needs, henan KUNFENG supply the oversea markets for GB/T 3077 12Cr1MoV hot rolled round bars OD 6mm -80 mm and 12Cr1MoV forged round bars OD 80 mm - 1200 mm, also GB/T 3077 12Cr1MoV forged square bars OD 100- 1200 mm. The OD tolerance is about 0-3mm and length tolerance is about 0-20 mm.

GB/T 3077 12Cr1MoV round bars are usually produced under the followed procedures: EAF arc furnace + LF purify affinage + VDF + ingot steel(bottom gating /argon) + forged + annealing + black polishing (turnery) + GB/T6402-92 ΙΙ UT test + smooth edges with sawing .

chemical composition by %,maximum

Grade	C	Si	Mn	Cr	Mo	V	P	S
GB/T 3077 12Cr1MoV	0.08-0.15	0.17-0.37	0.4-0.7	0.9-1.2	0.25-0.35	0.15-0.3	≤0.035	≤0.035

mechanical properties

Grade	Delivery State	T.S. N/mm2 Min	Y.S. N/mm2 Min	A,% Min	Z,% Min	Hardness, (annealing or tempering) HB,max	Forging ratio	Grain Size (level)	Nonmetal ratio
GB/T 3077 12Cr1MoV	Hot rolled, forged, or heat treatment	490	245	22	50	179	≥ 4:1	≥ 6	≤ 2.0