GB/T 3077 45CrNiMoVA steel round bars

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01-Jul-2024

GB/T 3077 45CrNiMoVA alloy structural steel round bar under GB/T 3077 chinese standard, belongs to a high carbon nitrided steel. GB/T 3077 45CrNiMoVA can be produced into hot rolled round bars and square bars, cold-drawing bars,forged bars. KUNFENG can supply GB/T 3077 45CrNiMoVA all of shapes.

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GB/T 3077 45CrNiMoVA round bar

GB/T 3077 45CrNiMoVA 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.

GB/T 3077 45CrNiMoVA round bars chemical composition by %,maximum:

Grade	C	Si	Mn	Cr	Ni	Mo	V	P	S
GB/T 3077 45CrNiMoVA	0.42-0.49	0.17-0.37	0.5-0.8	0.8-1.1	1.3-1.8	0.2-0.3	0.1-0.2	≤0.025	≤0.025

GB/T 3077 45CrNiMoVA round bars 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 45CrNiMoVA	Hot rolled, forged, or heat treatment	1470	1330	7	35	269	≥ 4:1	≥ 6	≤ 2.0

GB/T 3077 45CrNiMoVA steel round bar application:
GB/T 3077 45CrNiMoVA round bars is mainly used for manufacturing shock absorber which works in quaking load,such as elastic axis, torsion shaft of heavy-duty car and driving truck and so on.

According to the market needs, KUNFENG supply the oversea markets for GB/T 3077 45CrNiMoVA hot rolled round bars OD 6mm -80 mm and 45CrNiMoVA forged round bars OD 80 mm - 1200 mm, also GB/T 3077 45CrNiMoVA forged square bars OD 100- 1200 mm. The OD tolerance is about 0-3 mm and length tolerance is about 0-20 mm. If you need GB/T 3077 45CrNiMoVA high carbon nitrided steel, or other grades, pls be free to contact KUNFENG Steel.