Shanghai, China
Business Range:
Construction & Decoration, Manufacturing & Processing Machinery, Metallurgy, Mineral & ...
Registered Capital:
4.58 Million USD
Management System Certification:
Main Markets:
South America, Southeast Asia/ Mideast, Australia, Domestic
OEM/ODM Service
Sample Available
Overseas Agent / Branch
French Speaker

Hot Rolled Steel Bar, Forged Bar, Round Steel Bar manufacturer / supplier in China, offering AISI 4140 Alloy Steel Bar, Steel Round Bars, High Quality N08926/25-6mo/1.4529 Super Austenitic Stainless Steel Bar, ASTM B168 Inconel600 Inconel601 Nickel and Nickel Alloy Plate&Sheet and so on.

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AISI 4140 Alloy Steel Bar, Steel Round Bars

Get Latest Price
Purchase Qty. / Reference FOB Price
1-49 Tons US $1,200
50-99 Tons US $1,150
100-499 Tons US $1,100
500+ Tons US $900
Port: Shanghai, China
Production Capacity: 5000 Tons/Month
Payment Terms: L/C, T/T, Western Union
Type: Alloy Steel Bar
Standard: AISI, ASTM, GB, JIS, DIN, BS
Technique: Hot Rolled
Application: Structural Steel Bar
Surface Treatment: Black,Peeled, Turned,Grinded
Alloy: Alloy

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Basic Info

Model NO.: AISI 4140, 43CrMo4, 1.7225, SCM440, 42CrMo
Special Use: Mold Steel
Product Name: AISI 4140 Alloy Steel Bar , Steel Round Bars
Material Number: 1.7225
GB: 42CrMo
JIS: Scm440
Delivery Condition: Eaf+Lf+Vd,Hr,Forged,Annealed,Q+T
Delivery Term: Fob, CIF, CFR, Exwork, etc
Shipping: by Sea, Air
Hot Rolled Round Bar: Dia.10-260mm, Length.3000-6000mm
Forged Round Bar: Dia.100-1500mm, Length.3000-6000mm
Trademark: BOZHONG or customized
Transport Package: Seaworthy Packing
Specification: Dia. 10-1500mm, length: 3000-6000mm
Origin: China

Product Description

 AISI 4140 Alloy Steel Bar , Steel Round Bars for Mechanical Parts , Annealed or Q+T
Steel Grade:4140Application:Machinery Steel, Engineering Steel
Shape:Round BarStandard:AISI, SAE, ASTM
Dimension:Φ 10-1500 mmSurface:Black, Peeled, Turned, Grinded
Technique:Hot Rolled,ForgedUltrasonic Test:100% UT Passed
 Chemical Composition (%)


 Hot RolledForged
Diameter (mm)10-260100-1500
Length (mm)3000-60003000-6000
 Delivery Condition
EAF+LF+VD, Hot Rolled or Forged, Black surface or Machined surface (Peeled, Turned,
Grinded), Annealed or Q+T, UT 100% Passed
1. Ultrahigh strength steel with high intensity and toughness.
2. Good harden ability, High fatigue limit and capability of impact resistance after Q+T.
3. No obvious temper brittleness.
1. For making crucial mechanical parts with high intensity and large sections, such as shaft, gear and connecting rod.
2. For making large and medium size of plastic mold.
 Forging Technique
Start Forging
Finish Forging
Cooling Method
1150 - 1200 ºC1130 - 1180 ºC≥850 ºCSlow Cooling for
 Quality Assurance
Below inspection will be done in the production.
(1) ray detection---RT;
(2) ultrasonic testing---UT;
(3) Magnetic Particle Testing-MT;
(4) penetration testing-PT; 
(5) eddy current flaw detection-ET

Company information:

Bozhong Group Mainly supply in forms of coil, sheet, plate, rod, bar, tube, pipe, beam, angle, flange, wire, strip, channel, etc., with various varieties, wide range of dimensions, high purity, stable chemical composition, high dimensional accuracy and excellent surface quality. The products are mainly used in the fields of industries such as automobile engineering, railway transportation, aviation, aerospace, machinery, petrochemical, energy, environmental protection, offshore, chemical, oil & gas, military, power plant, nuclear power, pressure vessel, boiler equipment, mold manufacture, etc.
steel coil
steel plate
steel sheet
steel bar/rod
    steel round bar
    steel flat bar
    steel square bar
steel pipe/tube ( welded or seamless )
    steel round pipes 
    steel square pipes
    steel welded tubes
    steel seamless tubes
steel strip
steel beam
steel angle
steel channel
steel flange
Steel wire
Bozhong Group can supply a variety of structural steel, high-strength steel, wear-resistant steel plate, boiler and pressure vessel steel, marine engineering and stainless steel plate in the thick steel and various European standard bars and pipes and profiles.Our global sales and service network throughout all around the world to ensure that the goods reach the customer in the shortest time.
We can follow your drawings and requirements, to provide you with oxygen cutting, plasma cutting and laser cutting and other processing services. You can also perform ultrasonic testing in accordance with EN10160 standard, EN10164 standard test Z15, Z25, Z35, weld bending detection, PWHT detection,etc.
We have ISO9001: 2000 quality management system certification, and obtain the quality certification from all the well-known certification company, including TuV / LRS / GL / CE and so on.
Special steel includes as below:
Boiler and pressure vessel steel
Pipeline steel
Bridge steel
Nuclear power steel
Structural steel
Die steel
High strength steel
Abrasion resistant steel
Weathering, corrosion resistant and fire resistant steel
High rise building steel
Shipbuilding and offshore engineering steel
Q: Are you a manufacturer or merely a trader?
A: We are group of companies and owned manufacturer bases and trading company. We specialized in special steel which include alloy structural steel and carbon steel and stainless steel, etc. All material are with high quality and competitive price. 
Q: How do you guarantee the quality of your product?
A: Firstly, we can provide the certificates from the third party, such as TUV, CE, if you need. Secondly, we have a complete set of inspection system and every process is checked by QC. Quality is the lifeline of enterprise survival.
Q: Delivery time?
A: We have ready stock for most of material grades in our warehouse. If the material don't have stock, the delivery lead time is about 5-30 days after receiving your prepayment or firm order.
Q: What is the payment term?
A: T/T or L/C.
Q: Can you provide a sample for our testing before confirm the order?
A: Yes. We can provide sample to you for approval before you place an order to us. Free sample is available if we have stock.
Q: Can we visit your company and factory?
A: Yes, warmly welcome! We can book the hotel for you before you come to China and arrange our driver to our airport to pick you up when you come. 
 Customer visiting :
Warmly welcome! Pick up your phone and Call us!
Send us the inquiry here!
We will reply you at the first time.

Contact US:
Annie Wang
Direct Line:+86-21-6766-0089

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