Shanghai Unite Steel Trading Co., Ltd.
Home > Products > Steel Bars > 8620 Cold Drawn Alloy Steel Round Bar-Cold Finished

8620 Cold Drawn Alloy Steel Round Bar-Cold Finished

— steel round bar, ground bar, bright bar
Product Category: Steel Bars
Sales Method: Export, Manufacture
Payment Term: T/T, L/C, D/P sight
Min. Order Unit Price
5 Tons USD 700 / Ton
Contact Info

Mrs.Cindy Liu

Address: China (mainland) Shanghai Shanghai,Room 1109, Loft Office, Green Land International Plaza, No. 275-8 Guoding East Road, Shanghai 200433, P. R. China
All Products (4)

Product Detail

Product Attribute:

  • China (mainland) More >
  • Unite Steel
  • 05/21/2013
  • 05/22/2013

Additional Info.:

  • Main port of China
  • sea worthy packing

Product Content Description:

When hardened and formed, 8620 Cold Drawn Alloy Steel Round Bar may be used to produce hard wearing machine parts in a wide variety of industries. With its combination of elements along with the ease with which it may be processed, 8620 steel bar is a good choice for a variety of applications. Carburized 8620 alloy is strong and durable and as a result is preferred in certain manufacturing applications. It is used to make a wide range of gears, crankshafts, gear rings, pinions, piston pins, cams, gauges, tie bars, collets, bushings and bolting as well as hand tools and a multitude of machinery parts and components. Structural parts such as gears, pinions, spline shafts, pins and a variety of other important applications requiring a hard wear surface and a ductile core.
Chemical Composition(%)
C Mn Si P S Cr Ni Mo
0.18-0.23 0.70-0.90 0.15-0.35 0.030 max 0.040 max 0.40-0.60 0.40-0.70 0.15-0.25
Mechanical Properties( T=20°C if not differently stated )
Dia(mm) Tensile Strength Rm (Mpa) Yield Strength R2 (Mpa) Fracture elongation A5 (%) Hardness (HB)
18-40 925 min 690 min 17 min 275 max
40-80 740 min 493 min 20 min 220 max
Diameter Tolerance
Diameter Tolerance H9 Tolerance H10 Tolerance H11 Tolerance H12
(mm) (mm) (mm) (mm) (mm)
3 (+0,-0.025) (+0,-0.040) (+0,-0.060) (+0,-0.150)
3-6 (+0,-0.030) (+0,-0.048) (+0,-0.075) (+0,-0.120)
6-10 (+0,-0.036) (+0,-0.058) (+0,-0.090) (+0,-0.150)
10-18 (+0,-0.043) (+0,-0.070) (+0,-0.110) (+0,-0.180)
18-30 (+0,-0.052) (+0,-0.084) (+0,-0.130) (+0,-0.210)
30-50 (+0,-0.062) (+0,-0.100) (+0,-0.160) (+0,-0.250)
50-80 (+0,-0.074) (+0,-0.120) (+0,-0.190) (+0,-0.300)
Step1: Our process begins with either hot-rolled steel coils or hot-rolled straight bars from the mill. When hot-rolled bars are used, they are drawn individually. When coils are used, overhead cranes use C-hooks to safely lift the coil onto the “Payoff-Decoiler.”
Step2: Steel unwraps from the “Payoff De-Coiler” and is fed through the horizontal and vertical pre-straightener rollers to “break the memory” of the coil.
Step3: Steel continues on through the shot blaster so that the surface of the bar can be cleaned of all scale and rust.
Step4: Now the steel is push-pointed through a die. The drawing unit will then pull the steel through that same die, in a continuous motion.
Step5: Continuous straightening is maintained by passing the steel through more rollers.
Step6: Non-destructive testing is in place on all drive lines to ensure that surface defects from the raw materials are being detected and sorted out.
Step7: More straightening processes are in place throughout the draw line.
Step8: Shear barrels or shear knives will shear or cut the bar to the customer’s desired length.
Quantity Per Month: 2000tons
HS Code: 72285000
Delivery Way - Date Of Delivery: 15days

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