Jianhui Metals Group

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SUP9 spring steel flat bar

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Steel round bar: Diameter Ø 5mm – 3000mm
Steel plate: Thickness 5mm – 3000mm x Width 100mm – 3500mm
Steel Hexagonal bar: Hex 5mm – 105mm
Surface : black,

Length: about 6m
Delivery: 20 Days according to your quantity

Package: bundle

Transport: By bulk or Containers;

Supply ability : 5000 metric tons/ month;

Payment terms : L/C, T/T;

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SUP9 spring steel flat bar

SUP9 steel stockholders and suppliers from china. Jianhui Metals Group have more 10years experience in jis SUP9 Spring Steel round bar, flat bar. Square bar, rod bar, wire and plate supply.

JIS SUP9 Steel is a high quality Cold work Spring Steel, It belong to the high quality high carbon alloy Spring Steel. Oil Quenched & Tempered Hardness is 28-34 HRc. SUP9 steel Annealing delivery hardenss less than 250HB.

Related Specifications ASTM A29/A29M DIN EN 10083/3 JIS G4053 GB GB/T 3077

 

Form of Supply

JIS SUP9 Spring Steel China Supplier and Stocker, Jianhui Metals Group can supply the round bar, steel flat bar, plate, hexagonal steel bar and steel square block. AISI SUP9 steel Round bar can be sawn to your required lengths as one offs or multiple cut pieces. SUP9 steel Rectangular pieces can be sawn from flat bar or plate to your specific sizes. Ground Spring Steel bar can be supplied, providing a quality precision finished bar to tight tolerances.

 

 

Chemical composition

C(%) 0.52-0.60 Si(%) 0.15-0.35 Mn(%) 0.65-0.95 P(%) ≤0.030
S(%) ≤0.035  Cr(%) 0.65-0.95

 

Equivalent Of SUP9 alloy Spring Steel

USA Germany China Japan France England Italy Poland ISO Austria Sweden Spain
DIN,WNr GB JIS AFNOR BS UNI PN ISO ONORM SS UNE
5155 / G51550 55Cr3 / 1.7176 55CrMnA SUP9 55C3 ≈527A60 55Cr3

 

Heat treatment Related

  • Annealingof SUP9 Spring Steel

Slowly heated to 740-770 ℃ and allow enough times, let the steel to be thoroughly heated, Then cool slowly in the furnace. The SUP9 tool  steel will get MAX 250 HB (Brinell hardness).

  • Hardening of SUP9 Spring Steel

SUP9 steels should be heated uniformly to 830-860°C (1526-1580°F) until completely heated through. 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 SUP9 steels is performed at 460-510°C, Soak well at the selected temperature and soak for at least one hour per 25mm of total thickness.

 

Mechanical Properties

The mechanical properties of SUP9 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):≥1225(125) σ0.2 (MPa):≥1080(110) δ5 (%):≥9 ψ (%):≥20 ≤321HB;

 

SUP9  products picture show:

 

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Applications

SUP9 steels, Highlight the advantage is good hardenability, another hot working performance, comprehensive mechanical properties,

Decarburization resistance is also good big cross section of various important spring, such as automobile, locomotive, large plate spring, spring, etc. SUP9 Spring main used for heavy vehicles, tractors, industrial production load, stress and the diameter of the larger plate spring and helical spring

 

Regular size and Tolerance

Steel round bar: Diameter Ø 5mm – 3000mm

Steel plate: Thickness 5mm – 3000mm x Width 100mm – 3500mm

Steel Hexagonal bar: Hex 5mm – 105mm

Others SUP9 have not specified size, pls contact our experienced sales team.

 

Processing

JIS SUP9 Spring Steel round bar and flat sections can be cut to your required sizes. SUP9 Spring Steel ground bar can also be supplied, providing a high quality Spring Steel precision ground Spring Steel bar to your required tolerances. JIS SUP9 steel is also available as Ground Flat Stock / Gauge Plate, in standard and nonstandard sizes.

 

Contact our experienced sales team to help you with your SUP9 Spring Steel questions and enquiry by Email or Telephone. The questions will be reply in 24 hours.