4140, 42CrMo4, 42CrMo, 1.7225 seamless steel pipe supplier

Short Description:

4140, 42CrMo4 Seamless heavt thickness steel tube

Product Detail

Product Tags


Standard:EN 10083

Grade:42CrMo4, 4140, 42CrMo
Deliver Condition:Hot rolling, Normalization Rolling
Size Range:OD 70MM-610MM , Thickness 6MM-35MM
Tolerance: According to EN 10210-2:2006
Length:As request
Certificate: FPC
Chemical Composition:
Grade Chemical Compostion
Standard C Si Mn Cr Mo P s
Max Max Max Max Max Max Max
42CrMo4 EN10083 0.38-0.45 0.4 0.6-0.9 0.9-1.2 0.15-0.3 0.025 0.035
4140 ASTM A29/A29M-04 0.33-0.48 0.15-0.35 0.75-1.0 0.8-1.1 0.15-0.25 0.03 0.03
42CrMo GB/T 3077 0.38-0.45 0.17-0.37 0.4-0.7 0.09-1.2 0.15-0.25 0.035 0.035

Mechanical Properties:

Grade Mechanical Properties
Standard Yield Strength Tensile Strength elongation Impact Value Hardness αkv
 Min Mpa Min Mpa Min%︱ min J HB min
42CrMo4 EN10083 930 1080 26 63 217 78
4140 ASTM A29/A29M-04 610 795 22 241 157
42CrMo GB/T 3077 275 410-560 12 63 217 78

Production Show:



The alloy seamless pipe is a kind of seamless steel pipe, and its performance is much higher than that of the ordinary

seamless steel pipe. Because the steel pipe contains more Cr, its high temperature resistance, low temperature resistance

and corrosion resistance are better than other seamless steel pipes. So the alloy tube is widely used in petroleum, chemical,

electric power, boiler and other industries.

4140 thick-walled seamless pipe is ultra-high strength steel with high strength and toughness, good hardenability,no obvious

temper brittleness, high fatigue limit and resistance to multiple impacts after quenching and tempering, low temperature Good

impact toughness. The steel is suitable for the manufacture of large and medium-sized plastic molds requiring a certain strength

and toughness.

4140 thick-walled seamless pipe characteristics and scope of application: high strength, high hardenability, good toughness, small

deformation during quenching, high creep strength and long-lasting strength at high temperatures. Forgings requiring higher

strength and larger quenching section than 35CrMo steel, such as large gears for locomotive traction, supercharger transmission

gears, rear axles, extremely loaded connecting rods and spring clips, can also be used Oil deep well drill pipe joints and fishing

tools below 2000m, and can be used for molds of bending machines, etc.



 Mill Certificate:



Raw material is from Top manufacture which promise the high quality.

Accurate technology confirm the exact size tolerance.

Efficient sales team give you proper proposal.

After-sales team offer and support for product guarantee.

Quality Control:


Our Service:



Q1: Are you manufacture or Trader

A: We are both manufacture and trader

Q2: Can you offer sample?

A: Sample small one can be offered by free, but buyer should pay the express fee

Q3: Can you offer processing service?

A: We can offer cutting, drilling, painting, coat powder etc…

Q4: What is your advantage on steel?

A: We can customize steel structure accoridng to buy’s drawings or request.

Q5: How about your logistic service?

A: we have professional logistic team who has rich experience on shipping, can offer the steady and quality ship line.



We have built a long-term and stable cooperation relation with customers in domestic , such as Shanghai, Jiangsu,

Zhejiang, Anhui,Shandong, Jiangxi, Qinghai, Liaoning, Hainan and so on.


For overseas, our main client from South Asia, Africa, South America like Singapore, Vietnam,  Brazil, Ghana, New Zealand,

Spain, Mauritius, Dubai etc.

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