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5140 Steel rod, 5140 steel rod Hot Rolled Alloy Steel Round Bar

1000 Kilogram
$0.60 / Kilogram
5140 Steel rod, 5140 steel rod Hot Rolled  Alloy Steel Round Bar
Features Gallery Product Description Request A Quote
Steel Grade: 5140
Alloy Or Not: Is Alloy
Technique: Hot Rolled
Application: Structural Steel Bar,Die Steel Bar,Tool Steel Bar
Shape: Round
Length: 1m-6m,as Your Request
Material: Die Alloy Steel Round Bars
Surface: Black Or Bright
Product Name: Alloy Steel Round Bar 40Cr 4140 D2 Alloy Steel Round Bars
Diameter: 12mm-650mm
Delivery Condition: Within15 Days After Received The Deposit
Basic Infomation
Place of Origin: Tianjin
Brand Name: Gnee
Certification: SGS
Model Number: 5140
Payment & Shipping Terms
Packaging Details: Steel strip packed,Standard Export Seaworthy Package.Suit for all kinds of transport,or as required
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 1000 Ton/Tons per Month
Product Description

5140 Steel rod, 5140 steel rod Hot Rolled Alloy Steel Round Bar

5140 steel has good comprehensive mechanical properties and is one of the most widely used steel types, used for manufacturing parts of medium speed and medium load, such as machine tool gear, shaft, worm, spline shaft and so on.

AISI 5140 steel also can be called JIS Scr440 and DIN 1.7035 steel. It is one of the alloy steel. And it is one of the most popular steel grades in the productions of the machine. The 5140 steel round bar is on the medium level and it was easy to processing. After tempering and quenching, the toughness, plasticity and wearing resistance of it will get better. Steel normalizing can make the spheroidizing for the organization of steel get easier. And it will raise the machinability of the semi-finished product with the hardness less than 160HBS. Tempering it at the temperature of 550℃-570℃ which can make it get better mechanical property. And the hardenability of it is higher than S45C steel. You can check 5140 Steel chemical composition and heat treatment as below.


Diameter 5mm-800mm
Length 100mm-120mm
Surface Forged condition, Annealing , Black or Milled surface
  • High strength,
  • High tenacity
  • Good hardenability
  • High resistance to thermal properties.
  • Competitive price
  • Fast production leadtime
  • All the material are inspected with 3 times to meet the highly standards


Forged Round Alloy Steel Bar Chemical Composition

Grade C Mn Si S P Cr
5140 0.38-0.43 0.7-0.9 0.15-0.35 ≤ 0.035 ≤ 0.04 0.7-0.9
5145 0.43 - 0.48 0.70 - 0.90 0.15 - 0.30 ≤0.040 ≤ 0.035 0.70 - 0.90
5150 0.48-0.53 0.70 – 0.90 0.20-0.35 ≤ 0.040 ≤ 0.040 0.70-0.90

Alloy Bar Mechanical Properties

Grade Tensile Strength Yield Strength Elongation Reduction of Area Impact Charpy-V HB
5140 ≥740Mpa ≥460Mpa ≥17% ≥62% ≥108J ≤207HB
5145 ≥1030Mpa ≥835Mpa ≥9% ≥40% ≥39J ≤217HB
5150 ≥1080Mpa ≥930Mpa ≥9% ≥40% ≥39J ≤229HB


5140 Steel rod, 5140 steel rod Hot Rolled  Alloy Steel Round Bar

5140 Steel rod, 5140 steel rod Hot Rolled  Alloy Steel Round Bar5140 Steel rod, 5140 steel rod Hot Rolled  Alloy Steel Round Bar


Gnee is one of the biggest steel pipe suppliers in China.Established in 2008, our factory is professional and trustworthy.We have built good and stable relationships with many customers in and abroad. Our products have been exported to many countries, such as Asia, India, Middle East, America,Europe,etc.

Our main products:steel pipe,seamless steel pipe,carbon steel pipe,round steel bar,alloy steel pipe,hot rolled carbon steel plate,steel plate,steel pipe mill roll moulds and some other products. We are very glad to establish a long-term business relationship with you on the basis of mutual benefit. If you are interested in any of our products, please feel free to contact us for more information. We believe that we will be your best partner in China.



Q:Can you provide the samples?

A:Samples can be provided with samples charge and courier fee by the buyer's side.


Q:Are the products in stock?

A:Yes.Most of our products are in stock.So we can prompt delivery.


Q:Can you accept customize?

A:Yes.It can be customized as per the customers' request.


Q:What about the quality?

A:According to the standard for production.And we can also accept the third-party inspection

and quarantine.



About the After-Sale Service

1.We are glad that customers can give us some suggestions for price and products.

2.If you have any questions,pls feel free to contact us by email or phone.

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Fax : 86-372-5055135
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