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65Mn Spring Steel Strip with Round Edge High Carbon Cold Rolled Steel Coil 0.01-3mm Thickness
65Mn Spring Steel Strip with Round Edge High Carbon Cold Rolled Steel Coil 0.01-3mm Thickness
Specifications
MOQ :
1 Ton
Price :
US $750-1,150 / Ton
Material :
65mn, SK5, 60Si2MnA, 50crv4, c75s, CK75, C75, C75Cr1, T8A, D6A, AISI1050, 1070, 1065, 1075, 1095, 6150
Thickness :
0.08mm - 3.0mm
Width :
5mm - 400mm
Edge Type :
Round edge or cutting edge
Hardness (Soft) :
HV190
Hardness (Hardened) :
HRC42-60
Surface Finish :
Bright polishing, blue, yellow, grey blue, white coated, nickel plating/coating oil
Carbon Content :
0.62-0.70%
Silicon Content :
0.17-0.37%
Manganese Content :
0.90-1.20%
Phosphorus Content :
≤0.035%
Sulfur Content :
≤0.035%
Tensile Strength :
≥980 MPa
Yield Strength :
≥785 MPa
Elongation :
≥8%
Description
65Mn SK5 Spring Steel Strip
High carbon cold rolled 65Mn steel coil with round edge, available in various specifications and surface treatments for industrial applications.
Product Specifications
Product Name Carbon steel strip / Carbon spring steel band / Spring carbon steel belt / Spring carbon steel strap / Spring steel coil
Material 65Mn, SK5, 60Si2MnA, 50CrV4, C75S, CK75, C75, C75Cr1, T8A, D6A, AISI 1050, 1070, 1065, 1075, 1095, 6150
Thickness 0.08mm - 3.0mm
Size 5mm-400mm, can be slit and cut according to customer requirements for width and length
Edge Round edge or cutting edge
Hardness Soft strip: HV190
Hardened strip: HRC42-60 as per customer requirements
Surface Bright polishing, blue, yellow, grey blue, white coated, nickel plating/coating oil
Usage Blades, band saws, mudguards, putty knives, metal stamping parts, automotive valves, spring washers/gaskets, U-shaped spring slices, feelers, various springs, automobile clutches, clockwork feed, locks, dent repair tools
Packing PVC film + waterproof paper + strong sea-worthy wooden package
Mark OEM / ODM / Buyer Label accepted
65Mn Spring Steel Overview
We are GB 65Mn steel stockholders and China suppliers. Mittel Steel supplies GB 65Mn Spring Steel in round bar, flat bar, rod bar, wire, and plate formats.
GB 65Mn Steel is a high-quality alloy spring steel belonging to the high carbon alloy spring steel category. Its quenched & tempered hardness is 28-34 HRC. 65Mn steel under annealing delivery has hardness less than 250HB.
Related Specifications
ASTM A29/A29M, DIN EN 17221, JIS G4801, GB, GB/T 1222 GB 65MN Spring Steel
Form of Supply
GB 65Mn Spring Steel China Supplier and Stockist. We supply round bar, steel flat bar, plate, hexagonal steel bar, and steel square block. AISI 65Mn steel round bar can be cut to your required lengths as one-offs or multiple pieces. 65Mn steel rectangular pieces can be cut from flat bar or plate to your specific sizes. Ground spring steel bar can be supplied, providing quality precision finished bars to tight tolerances.
Chemical Composition
Element Content (%) Element Content (%)
C 0.62-0.70 Si 0.17-0.37
Mn 0.90-1.20 P ≤0.035
S ≤0.035 Cr 0.25 max
Ni 0.25 max
Equivalent Materials
USA Germany China Japan France England Italy Poland ISO Austria Sweden Spain
AISI/SAE/ASTM/UNS DIN, WNr GB JIS AFNOR BS UNI PN ISO ONORM SS UNE
1066 65Mn 080A67
Heat Treatment Processes
Annealing of 65Mn Spring Steel
Slowly heat to 730°C and allow sufficient time for thorough heating, then cool slowly in the furnace. 65Mn tool steel will achieve maximum 250 HB (Brinell hardness).
Hardening of 65Mn Spring Steel
Heat uniformly to 830-860°C (1526-1580°F) until completely heated through. Allow approximately 30 minutes per 25mm of ruling section, then immediately quench in oil.
Tempering of 65Mn Spring Steel
Perform tempering at 540°C. Soak well at the selected temperature for at least one hour per 25mm of total thickness.
Mechanical Properties
Tensile Strength Yield Strength Elongation Reduction of Area Hardness (Hot Rolled) Hardness (Cold Drawn)
σb (MPa): ≥980 σ0.2 (MPa): ≥785 δ 5 (%): ≥8 ψ (%): ≥30 ≤302HB
Applications
65Mn steel, after heat treatment and cold drawing hardening, exhibits high strength with certain toughness and plasticity. In surface hardening cases, it achieves fatigue limits comparable to alloy spring steel. However, it has poor hardenability and is mainly used for smaller size springs such as speed regulating springs, load springs, round and square spiral springs in general machinery, or as pull wire for small mechanical springs.
Regular Sizes and Tolerances
  • Steel round bar: Diameter Ø 2mm - 3000mm
  • Steel plate: Thickness 2mm - 3000mm x Width 100mm - 3500mm
  • Steel Hexagonal bar: Hex 5mm - 105mm
  • Other 65Mn sizes available - please contact our sales team
Processing Capabilities
GB 65Mn Spring Steel round bar and flat sections can be cut to your required sizes. We also supply 65Mn Spring Steel ground bar, providing high-quality precision ground spring steel bars to your required tolerances. GB 65Mn steel is available as Ground Flat Stock / Gauge Plate in standard and non-standard sizes.
Contact our experienced sales team for assistance with your 65Mn Spring Steel questions and inquiries by email or telephone. All inquiries will be responded to within 24 hours.
65Mn Spring Steel Strip with Round Edge High Carbon Cold Rolled Steel Coil 0.01-3mm Thickness 65Mn Spring Steel Strip with Round Edge High Carbon Cold Rolled Steel Coil 0.01-3mm Thickness 65Mn Spring Steel Strip with Round Edge High Carbon Cold Rolled Steel Coil 0.01-3mm Thickness 65Mn Spring Steel Strip with Round Edge High Carbon Cold Rolled Steel Coil 0.01-3mm Thickness
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65Mn Spring Steel Strip with Round Edge High Carbon Cold Rolled Steel Coil 0.01-3mm Thickness

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Product Detail
MOQ :
1 Ton
Price :
US $750-1,150 / Ton
Material :
65mn, SK5, 60Si2MnA, 50crv4, c75s, CK75, C75, C75Cr1, T8A, D6A, AISI1050, 1070, 1065, 1075, 1095, 6150
Thickness :
0.08mm - 3.0mm
Width :
5mm - 400mm
Edge Type :
Round edge or cutting edge
Contact Supplier
65Mn Spring Steel Strip with Round Edge High Carbon Cold Rolled Steel Coil 0.01-3mm Thickness

JIANGSU MITTEL STEEL INDUSTRIAL LIMITED

Verified Supplier
4 Years
jiangsu, wuxi
Business Type :
Manufacturer, Distributor/Wholesaler, Exporter
Main Products :
stainless steel roofing sheet, Stainless Steel Strip, Others stainless steel sheet
Total Annual :
>1000000
Employee Number :
>100
Certification Level :
Verified Supplier
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