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JIANGSU MITTEL STEEL INDUSTRIAL LIMITED

  • China,Wuxi ,Jiangsu
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China Alloy Steel Round Rod ASTM AISI 5140 40cr Scr440 Hot Rolled Steel Bar 20*6000mm
China Alloy Steel Round Rod ASTM AISI 5140 40cr Scr440 Hot Rolled Steel Bar 20*6000mm

  1. China Alloy Steel Round Rod ASTM AISI 5140 40cr Scr440 Hot Rolled Steel Bar 20*6000mm
  2. China Alloy Steel Round Rod ASTM AISI 5140 40cr Scr440 Hot Rolled Steel Bar 20*6000mm
  3. China Alloy Steel Round Rod ASTM AISI 5140 40cr Scr440 Hot Rolled Steel Bar 20*6000mm

Alloy Steel Round Rod ASTM AISI 5140 40cr Scr440 Hot Rolled Steel Bar 20*6000mm

  1. MOQ: 300KGS
  2. Price: 0.5-0.86 USD/KG
  3. Get Latest Price
Payment Terms L/C, T/T
Supply Ability 50000KGS
Delivery Time 7 Days
Packaging Details Wooden Box
Steel grade Alloy Steel,ss400 a36 s45c sae1045 42CrMo
Alloy or not Is Alloy
Technique Hot Rolled,Forged,Cold Drawn
Application Structural Steel Bar,Die Steel Bar,chemical,shipbuilding
Type Alloy Steel Bar,Carbon Steel Bar
Standard ASTM,DIN,AISI,JIS
Shape Round
Length 1--12m
Surface black or bright
Diameter 12mm-650mm
Delivery condition annealed,hot rolled/forged
Heat treatment Normalized +Annealed +Quenched + Tempered
Brand Name MITTEL TISCO BAO STEEL
Model Number 5140 40cr Scr440
Certification SGS ISO MTC
Place of Origin China

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms L/C, T/T Supply Ability 50000KGS
Delivery Time 7 Days Packaging Details Wooden Box
Steel grade Alloy Steel,ss400 a36 s45c sae1045 42CrMo Alloy or not Is Alloy
Technique Hot Rolled,Forged,Cold Drawn Application Structural Steel Bar,Die Steel Bar,chemical,shipbuilding
Type Alloy Steel Bar,Carbon Steel Bar Standard ASTM,DIN,AISI,JIS
Shape Round Length 1--12m
Surface black or bright Diameter 12mm-650mm
Delivery condition annealed,hot rolled/forged Heat treatment Normalized +Annealed +Quenched + Tempered
Brand Name MITTEL TISCO BAO STEEL Model Number 5140 40cr Scr440
Certification SGS ISO MTC Place of Origin China
High Light Alloy Steel Round Rod 20mmHot Rolled Steel Bar 6000mmASTM AISI 5140 Steel Round Bar

Alloy Steel Round Rod ASTM AISI 5140 40cr Scr440 Hot Rolled Steel Bar 20*6000mm

40Cr steel material widely be used in the machine-building industry. 40Cr is a standard grade of GB. After quenching and tempering, it will get great comprehensive mechanical property and great low-temperature impact toughness. And its hardenability is good. After the oil quenching, the fatigue limit will be higher. But the fittings with complex shape is easy to get crack after the water quenching. It is also suitable for cyaniding and high-frequency quenching beside Q+T. Its machinability also is good, if the hardness is 174-229 HB, the machinability is 60%. 40Cr steel material is a good choice for medium type plastic mold. It belongs to mild Q+T steel and cold heading mold steel. Also, the price is not high, easy to be processed. After the right heat treatment, it will get good toughness, plasticity and wear resistance. Tempering at the range of 550-570℃, it will get the best mechanical property. The equivalent steel grade of 40Cr is 40MnB, 45 MnB, 35SiMn, 42SiMn, 40MnVB, 42MnV, 40MnMoB, 40MnWB and etc.

 

40Cr Steel Material Chemical Composition

 

Grade C(%) Si(%) Mn(%) Cr(%) P(%) S(%) Cu(%) Ni(%) Mo
40Cr 0.37-0.44 0.17-0.37 0.50-0.80 0.80-1.10 MAX 0.035 MAX 0.035 MAX 0.30 MAX 0.30 MAX 0.15

 

40Cr Mechanical Properties

  • Tensile Strength: ≥ 810 MPa
  • Yield Point: ≥ 785 MPa
  • Impact Absorbing Energy: ≥ 47 J

What is 40Cr Steel Material Used for?

It is one of the most popular steel grades in the industry. After Q+T heat treatment, it usually is used to make parts. Such as the gears of machine tools, shaft, worm, spline shaft and etc. If it is through quenching and tempering; high-frequency quenching, it will be good choice for fittings with high hardness and wear resistance. For example, wheel gear, shaft, principal axis, crankshaft, arbor, inlet valve, bolt and etc.

Q+T Hardness

After quenching and tempering, the hardness of 40Cr is in the range of 32-36HRC, which means about 301-340 HB.

  • 830℃-860℃ oil quenching: 55HRC
  • 150℃ tempering: 55HRC
  • 200℃ tempering: 53HRC
  • 300℃ tempering: 51HRC
  • 400℃ tempering: 43HRC
  • 500℃ tempering: 34HRC
  • 550℃ tempering: 32HRC
  • 600℃ tempering: 28HRC
  • 650℃ tempering: 24HRC
  • 700℃ tempering: 20HRC

40Cr Steel vs 45# Steel

The carbon content of 40Cr is lower than 45# steel. At the condition of hot-rolled, their mechanical property is almost the same. But the price of 40Cr is higher than 45# steel about a half. So if your budget is not high, you maybe need to choose the 45# steel.

 

FAQ
1) why you chose us ?
Because we have large stocks and we have long term cooperative factories. We can get the lowest ex-factory prices. The price are quite reasonable and it is lower than our commercial peers. Also, we can guarantee the quality of our products.
2) Our minimum order quantity:
2  Metric Tons
3) How about the Delivery Time?
The steel pipe will be produced since we getting your deposit by T/T or original L/C, and delivery to the port of loading within 25~30 days.
For normal size, some stocks in our factory now, we can shipment within 7~10 days after receive the deposit.
4) What kind of payment does your company support?
T/T, 100% L/C at sight.
5) Do you charge for the samples?
No, we provide samples free, you pay for the freight charge.
6) Main market:
Mid East South America South Asia Africa Southeast Asia Northern Europe Western Europe etc.

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer,Distributor/Wholesaler,Agent,Exporter,Seller

  • Year Established:

    1998

  • Total Annual:

    80Millen-100 Millen

  • Employee Number:

    200~500

  • Ecer Certification:

    Verified Supplier

Jiangsu Mittel Steel Industrial Limited is  located in Wuxi City,  a beautiful city near Shanghai.  Wuxi is close to  Shanghai (BAO STEEL) ,Zhangjiagang (ZPSS),Ningbo (BAO XIN),KUN SHAN (DKSS), enjoy excellent geographic location and convenient water, land and air transporta... Jiangsu Mittel Steel Industrial Limited is  located in Wuxi City,  a beautiful city near Shanghai.  Wuxi is close to  Shanghai (BAO STEEL) ,Zhangjiagang (ZPSS),Ningbo (BAO XIN),KUN SHAN (DKSS), enjoy excellent geographic location and convenient water, land and air transporta...

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Get in touch with us

  • Reach Us
  • JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
  • NO.288,YOUYI ROAD ,XI SHAN DISTRICT,WUXI CITY,CHINA
  • https://www.stainlesssteel-sheetmetal.com/

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