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Dongguan Ruiyuan Steel Co., Ltd.

China Manufacturer with main products: Plastic Mould Steel, Hot Work Mould Steel, Cold Word Mould Steel, Alloy Steel, High Speed Tool Steel, Carbon Steel, Bearing Steel, Stainless...

Home  >Products Catalog > Forged Milled AISI 4140 Alloy Steel with Competitive Price

Forged Milled AISI 4140 Alloy Steel with Competitive Price

FOB Price: 1,500.00 - 2,300.00 USD/Ton
Supply Ability: 7,000 Ton per Month
Shipping: 7~15 days in stock
Payment Terms: L/C, T/T
In Stock
Export Markets: North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
Place of Origin: Liaoning in China
Packaging Details: raw packing or according to customer's requirement.

Specifications

4140 Alloy  Steel Round Bar / 1.7225 Alloy  Steel Rod  
 
Description:
1.DIN1.7225 / SAE4140 / GB42CrMo / JIS SCM440 Alloy Steel  Round Bar /  Steel Rod 
2.Hot rolled or forged condition, annealing or harden, black or milled surface
3.Pre-heat treatment:
l         Annealing : heat to 840-860°c, keep 2H, furnace cold, hardness≤217HBS
l         .High temperature tempering : heat to 680-700°c, air cold, hardness ≤217HBS
4.Heat treatment:
l         Normalization: heating to 840 to 880 ° C, maintenance, furnace cooling to 600 ° C, then in air.
l         Stress relieving: after rough heat to 500 ° C, maintenance raff. In oven to 400 ° C, then in air.
l         Hardening: preheating from 600 to 650 ° C austenitizing
at 840 to 880 ° C, quenching in oil.
l         Tempering: heating to 550 - 650 ° C and maintenance regime, again depending on the mechanical properties
5. Hot rolled technology:EAF+LF+VD
  Forged technology: EAF+LF+VD+ESR+Forging +Q T + Machined surface
6.Ultrasonic test standard: SPE1921-GR3, CLASS C/C or D/D
7.Production leadtime: 7~10 days
 
8. Chemical composition:
C
Mn
Si
Cr
Ni
Cu
P
S
0.17-0.23
0.30-0.60
0.15-0.40
1.25-1.75
3.25-3.75
≤0.25
≤0.030
≤0.030
 
9.Compared grades(based on usage):
Chinese
American
German
Japanese
GB
AISI
DIN
JIS
42CrMo
4140
1.7225
 SCM440
 
Specifications:
 
Hot rolled condition
Steel plate(mm)
Mill name
 
Diameter
Length
 
 
¢16~¢255
2000~5800
Dongbei,XiNing, BengGang, ShouGang steel
Forged condition
¢150~¢600
2500~4000
Local mill with 6000tons fluid forged machine
 
 
4140 Alloy Steel Applications:
l          General service industries (petroleum, food, chemical, paper, fertilizer,  Fabric, aviation and nuclear)
l         Fluid, gas and oil transport
l        Pressure and heat transmission
l        Construction and ornament
l        Boiler heat exchangers
 
Competitive Advantage:
   l         Good purity and homogeneity.
   l          Good machinability(Roughing, grinding and drilling).
   l          Good dimensional stability during heat treatment.
   l         Excellent preparation for nitriding, both ionic and gaseous, induction hardening to increase the mechanical properties.
   l         Competitive price
   l         Fast production leadtime
   l         All the material are inspected with 3 times to meet the highly standards  

Our Main products:
DongGuan RuiYuan Steel Co.,Ltd Specializes in plastic mould steel, hot work mould steel, cold work mould steel  alloy steel and carbon structural steel, such as : P20, P20+Ni, 1.2714, 1.2083, 1.2316, H13, O1, D2, D3, D5, 1045, 1050, A3, 52100(EN31), 4137, 4140, 4340, 5140, 6150, 8620 and SCM420  for exporting over 20 countries now, such as: Brazil, India, Turkey, Italy, Germany, Korea, Malaysia, Iran and so on.

Service Process

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