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Wuxi Jinlai Mechanical Processing Co., Ltd.
Wuxi Jinlai Machinical Processing Co., LTD
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Construction Thin Spring Steel Strips , Flat Spring Steel 65mn 1066 Tool Hardware

Wuxi Jinlai Mechanical Processing Co., Ltd.

Construction Thin Spring Steel Strips , Flat Spring Steel 65mn 1066 Tool Hardware

Brand Name : JIN LAI

Model Number : 65MN

Certification : ISO

Place of Origin : CHINA

MOQ : 3 tons

Price : negotiable

Payment Terms : T/T, Western Union, L/C

Supply Ability : 3000 tons per month

Delivery Time : within 15 days

Packaging Details : standard seaport packing or as custom request

Standard : AISI, ASTM, BS, DIN, GB, JIS

Steel Grade : Q195, Q235, SPCC,65Mn, 40CR, S45C,CK75....

Technic : Cold rolled

Width : 10-1500mm

Thickness : 0.8-8mm

Port : Shanghai

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65MN Chemical composition

C() 0.62-0.70 Si() 0.17-0.37 Mn() 0.90-1.20 P() ≤0.035
S() ≤0.035 Cr(%) 0.25max Ni(%) 0.25max

Equivalent Of 65Mn alloy Spring Steel

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 Related

  • Annealing of 65Mn Spring Steel

At first Slowly heated to 730 ℃ and allow enough times, let the steel to be thoroughly heated, Then cool slowly in the furnace. Then 65Mn tool steel will get MAX 250 HB (Brinell hardness).

  • Hardening of 65Mn Spring Steel

At the beginning, 65Mn steels should be heated uniformly to 830-860°C (1526-1580°F) until completely heated through. After about 30 min per 25 mm of ruling section is to be provided and then the steels should be immediately quenched in oil. Tempering of 65Mn Spring Steel

Tempering of 65Mn steels is performed at 540°C, Soak well at the selected temperature and soak for at least one hour per 25mm of total thickness. Hardness values at different temperatures after tempering

Mechanical Properties

The mechanical properties of 65Mn Spring Steels are outlined in the following table.

Tensile strength Conditions to 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, high strength, it has a certain toughness and plasticity; In the same surface hardening case, completely and the fatigue limit and alloy spring. But hardenability poor, mainly for the smaller size of the spring, such as regulating speed regulating spring, spring load, general machinery in the round, square spiral spring or pull wire for small mechanical spring.

Regular size and Tolerance

Steel round bar: Diameter Ø 2mm – 3000mm

Steel plate: Thickness 2mm – 3000mm x Width 100mm – 3500mm

Steel Hexagonal bar: Hex 5mm – 105mm

Others 65Mn have not specified size, pls contact our experienced sales team.

Processing

Moreover, GB 65Mn Spring Steel round bar and flat sections can be cut to your required sizes. 65Mn Spring Steel ground bar can also be supplied by us, providing a high quality Spring Steel precision ground Spring Steel bar to your required tolerances. And GB 65Mn steel is also available as Ground Flat Stock / Gauge Plate, in standard and nonstandard sizes.


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spring steel sheet

      

spring steel rod

      
China Construction Thin Spring Steel Strips , Flat Spring Steel 65mn 1066 Tool Hardware wholesale

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