Ningbo Dingyan Metal Products Co.Ltd.
Ningbo Dingyan Metal Products Co.Ltd.
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65Mn Steel Wire
  • 65Mn Steel Wire65Mn Steel Wire

65Mn Steel Wire

65Mn steel wire is a Chinese GB standard spring steel grade wire, Manganese (Mn) improves hardenability, so the strength, hardness, elasticity and hardenability are higher than that of 65# steel, but it has overheat sensitivity and temper brittleness. Water quenching tends to form cracks. The annealed state has good machinability, low cold deformation plasticity, and poor weldability.
It is available for choice with size range of 0.40mm to 5.00mm.

Application

Due to its favorable properties, 65Mn steel wire is commonly employed in the manufacturing of springs, including wave springs. Its excellent tensile strength and elasticity make it ideal for applications where the spring is subjected to high stress or requires repeated bending without losing its shape or functionality.

Chemical composition

The table below lists 65Mn high carbon steel wire chemical composition based on heat analysis.

Chemical Composition,%
Standard Grade C Si P S Cu Mn Cr Ni
GB/T 1222 65Mn 0.62-0.70 0.17-0.37 ≤0.03 ≤0.03 ≤0.25 0.90-1.20 ≤0.25 ≤0.35


Mechanical Properties

The mechanical properties of 65Mn Steel Wires are outlined in the following table.

Tensile Strength Conditions to
Yield Strength
Elongation Reduction of Area Hardness
(Hot Rolled)
σb (MPa):≥980 σ0.2 (MPa):≥785 δ 5 (%):≥8 ψ (%):≥30 ≤302HB


Packing

Packings for 65Mn steel wire are available in coils,with spools,pallets and wooden cases.

In Coils

Wooden Case

Pallet

Plastic Spools


Main advantages for 65Mn steel wire:

1. High Strength and Toughness: 65Mn steel wire boasts impressive tensile strength and toughness, making it ideal for high-stress applications.

2. Wear Resistance: This material is exceptionally resistant to wear and tear, ensuring longevity in demanding environments.

3. Elasticity: Its high elastic limit makes it perfect for springs and components that require significant flexibility without deformation.

4. Cost-Effectiveness: Compared to other high-performance steels, 65Mn steel wire offers a cost-effective solution without compromising on quality.




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