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

Alloy Round Steel Bar, 4140 Steel Bar, Round Steel Bar manufacturer / supplier in China, offering 1.7225 AISI4140 Alloy Steel Round Bar Qt Forged Steel, 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 1.7225 AISI4140 Alloy Steel Round Bar Qt Forged Steel

1.7225 AISI4140 Alloy Steel Round Bar Qt Forged Steel

Purchase Qty.:
(Tons)
10-19 20+
FOB Unit Price: US $630 US $610
Purchase Qty. (Tons) FOB Unit Price
10-19 US $630
20+ US $610
Get Latest Price
Port: Qingdao, China
Production Capacity: 80000
Payment Terms: L/C, T/T, D/P, Western Union

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Basic Info
  • Model NO.: ROUND BAR
  • Standard: AISI, ASTM, GB, JIS, DIN
  • Application: Structural Steel Bar
  • Alloy: Alloy
  • Grade: Alloy Steel Bar
  • Supply Condition: Qt or Hot Rolled
  • Transport Package: Seaworthy Packaging
  • Origin: China
  • Type: Alloy Steel Bar
  • Technique: Hot Rolled
  • Surface Treatment: Polished
  • Special Use: Cold Heading Steel
  • Main Standard: AISI4140 Scm440 1.7225
  • Trademark: leren
  • Specification: diamemter: 10mm-310mm
Product Description
Alloy Steel Round Bar 4140 1.7225
1.Chemical Composition (%):
GradeCSiMnPSCrMo
42CrMo40.38-0.450.17-0.370.40-0.70≤0.035≤0.0350.90-1.200.15-0.25
1.72250.38-0.45≤0.400.60-0.90≤0.025≤0.0350.90-1.200.15-0.30
41400.38-0.430.15-0.350.75-1.00≤0.035≤0.0400.80-1.100.15-0.25
2.Available sizes:
Round: Dia. 10 - 1000mm
20mm-300mm with hot rolled supply condition;
200-1000mm with forged supply condition
3.Delivery condition: Hot rolled or forged, Peeled or black surface, annealed or QT.
4.Applications:
Statically and dynamically stressed components for vehicles, engines and machines. For parts of larger cross-sections, crankshafts, gears.
5.Heat Treatment:
Soft annealing: heat to 680-720°C, cool slowly.
Hardness after annealing: Max. 241 HB
Hardening: 820 - 850 °C
Normalizing temperature: 840-880°C
Tempering: 540-680°C
6. Inspection: 100% Ultrasonic according to the test standards:SEP1921-84,GR.3 CLASS C/C
7. Packing situation:  standard seaworthy packing or as customer required
8. Delivery time:  30 days after order confirmed 
9. Process:  EAF+LF+VD ( necessary) +UT+ Peeled(optional)  +Turned (optional) + Heat Treatment (optional)

alloy steel bar picture

1.7225 AISI4140 Alloy Steel Round Bar Qt Forged Steel
1.7225 AISI4140 Alloy Steel Round Bar Qt Forged Steel
1.7225 AISI4140 Alloy Steel Round Bar Qt Forged Steel
1.7225 AISI4140 Alloy Steel Round Bar Qt Forged Steel
1.7225 AISI4140 Alloy Steel Round Bar Qt Forged Steel
 
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