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Hot Rolled Alloy Steel Round Bars

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    Negotiable

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  • Total supply:

  • Delivery term:

    The date of payment from buyers deliver within days

  • seat:

    Beijing

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    Long-term effective

  • Last update:

    2017-12-29 04:41

  • Browse the number:

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Company Profile
Shanghai Bozhong Metal Group Co. Ltd
By certification [File Integrity]
Contact:

bozhong(Ms.)  

Telephone:

Area:

Beijing

Address:

BUILDING 32#, NO. 518, XINZHUAN ROAD, SONGJIANG, Shanghai, Shanghai, China (201612)

Website: http://bozhong.nbzhenhai.com/
Product details
Model Number: FWM-2017-012 Brand Name: BOZHONG Key Specifications/Special Features: Hot rolled alloy steel round bars and rodsRevne number: 873Material number: 1.3255DIN: S18-1-2-5EN: HS18-1-1-5AISI: T4Chemical composition (in weight %)C: 0.79%Si: 0.45% max
Mn: 0.40% max
Cr: 4.15%
Mo: 0.65%
V: 1.55%
W: 18.00%
Others: 4.75%

Description:
This alloy is a high speed, tungsten type tool steel
Deep hardening alloy capable of Rockwell C 64 hardness

Applications:
Generally used as cutting tools, broaches and cold extrusion punches, turning, planning and milling cutters for roughing work

Physical properties (average values) at ambient temperature:
Modulus of elasticity [103x N/mm2]: 217
Density [g/cm3]: 8.70
Thermal conductivity [W/m.K]: 19.0
Electric resistivity [ohm mm2/m]: 0.65
Specific heat capacity[J/g.K]: 0.46

Soft annealing:
Heat to 820-850oC, cool slowly in furnace to 550oC then air
This will produce a maximum Brinell hardness of 265

Stress relieving:
Stress relieving to remove machining stresses should be carried out by heating to 600 to 650oC, holding for one hour at heat, followed by air cooling
This operation is performed to reduce distortion during heat treatment

Hardening:
Harden from a temperature of 1260 to 1290oC followed by oil, air quenching or warm bath at 550oC Hardness after quenching is 63-66 HRC

Tempering:
Tempering temperature: 2x 560 to 580oC
Hardness after tempering is 64-65 HRC

Forging:
Hot forming temperature: 1150 to 900oC


Cold working:

In the annealed condition the alloy may be cold worked by conventional methods
Machinability:
Machinability of T4 is only fair
Ranks as 55% that of the W group water hardening simple tool steels

Corrosion resistance:
Although this alloy contains appreciable amount of tungsten it is still not a corrosion resistant alloy
Will rust unless adequately protected


Welding:
Alloy may be welded but has a high tungsten content
Consult the alloy supplier for information relative to welding methods
Shipping Information:
  • FOB Port: Shanghai
  • Lead Time: 25 - 30 days
  • Dimensions per Unit: 600 × 8 × 20 Centimeters
  • Weight per Unit: 3.2 Kilograms
  • Units per Export Carton: 4
  • Export Carton Dimensions L/W/H: 600 × 8 × 20 Centimeters
  • Export Carton Weight: 2.3 Kilograms
Main Export Markets:
  • Asia
  • Australasia
  • Central/South America
  • Eastern Europe
  • Mid East/Africa
  • North America
  • Western Europe