Gold Member Since 2014
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Qingdao Helio Steel Co., Ltd.

Round Bar, Steel Rod, Steel Round Bar manufacturer / supplier in China, offering 8620 4340 4140 Alloy Steel for Parts, 20cr 40cr 40mn2 20crmnti Alloy Steel Round Bar, Carbon Steel Bars SAE1020 1045/ C45/ S45c/ 45# and so on.

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Supplier Homepage Product Steel bar for machine Alloy steel bar 8620 4340 4140 Alloy Steel for Parts

8620 4340 4140 Alloy Steel for Parts

Purchase Qty.:
(Tons)
10-99 100+
FOB Unit Price: US $600 US $580
Purchase Qty. (Tons) FOB Unit Price
10-99 US $600
100+ US $580
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Port: Qingdao, China
Production Capacity: 15000 Metric Tons Per Month
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram

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Basic Info
  • Model NO.: 8620 4340 4140
  • Standard: AISI, ASTM, GB, JIS, DIN, BS
  • Application: Structural Steel Bar
  • Alloy: Alloy
  • Product Name: 8620 4340 4140 Alloy Round Bar Steel
  • Shape: Round
  • Delivery Condition: Hot Rolled/Cold Drawn/Q&T/Rough Turning
  • Trademark: helio steel
  • Specification: 16-320mm
  • HS Code: 72283090
  • Type: Alloy Steel Bar
  • Technique: Hot Rolled
  • Surface Treatment: Black/Bright
  • Special Use: Customer Requirement
  • Material: 8620 4340 4140
  • Surface: Black/Bright
  • Length: 3-12m
  • Transport Package: Standard Seaworthy Packaging
  • Origin: Shandong, China
Product Description
8620 4340 4140 alloy round bar steel 
 
GradeCSiMnPSNiCr Mo Cu 
AISI4140
 (42CrMo4)
0.38-
0.41
0.15
0.35
0.85
1.00
 Max
0.015
 Max
0.040
 Max
0.25
0.80
1.10
0.15
0.25
 Max
0.35
Al(0.012
   0.030)
AISI41500.48-
0.53
 0.15
 0.35
0.75
1.00
 Max
0.035
 Max
0.040
 Max
0.25
0.80
1.10
0.15
0.25
 Max
0.35
V(0.012
   0.030)
ASTM 
A193(2005)
 B16
0.36-
0.47
0.15
0.35
0.45
0.70 
 Max
0.035
 Max
0.040
 0.80
1.15
0.50
0.65
 V(0.25
   0.35)
Al  Max
  0.015
S55CB0.52-
0.58
0.15
0.35
0.60
0.90 
 Max
0.030
 Max
0.035
 Max
0.020
 Max
0.020
  Max
0.30
B(0.002
   0.003)
4130  
 (25CrMo4)
0.28-  0.330.15-0.350.40-0.60 Max
0.035
 Max
0.040
 0.80- 1.100.15- 0.25  
4135
 (35CrMo4)
0.33- 0.380.15- 0.350.70- 0.90 Max
0.035
 Max
0.040
 0.80- 1.100.15-  0.25  

Producing line:
Iron - hot metal pretreatment - Converter - Refining --VD / RH- - Continuous Casting - Hot Rolling (KOCKS) - heat --UT Check - Processing and Distribution Center
 
Electric Furnace - Refining --VD / RH- - Continuous Casting - Hot Rolling (KOCKS) - heat --UT Check - Processing and Distribution Center

Size tolerance:
Length tolerance: +/-50mm
Straightness:Max 3mm/m

Quality Contation
Both end of each bar must be cut.
Ladle furnanced and vacuum de-gassed
Show heat No. on each bar

What we could offer and guarantee:
1.Gas content requirements : O2 - <20 ppm H2 - <2 ppm N2- <100 ppm
2.Grain Size: 6 or finer
3.Macro Etch: Not more than Grade2(C2R2S2)
4.UT test: Class C/c or better
5.Processing Line:Blast Furnace/Electric Arc Furnace LRF VD Continuous Caster Hot Rolling
 6.High degree of purity,homogenous structure, impacting ductility
 7.High Jominy Value

Service
Contact name:
Alex Qu 86-18953401726
 
 
 
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