Chrome moly alloy pipe

Chrome moly alloy pipe

Standard: 35CrMo,42CrMo,4130,4142 Cold Drawn N
Hot rolled A
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Product Details

Chrome moly alloy pipe

Introduce

Chrome-molybdenum steel is an alloy of chromium (Cr), molybdenum (Mo), iron (Fe) and carbon (C) Also known as medium temperature hydrogen resistant steel, it is to point to join Cr (< 10%), Mo alloy elements such as to improve the high temperature ultimate strength and creep limit of steel grade, hydrogen at the same time has good resistance to corrosion and high temperature resistant performance, Then it is  widely used in hydrogen device and high temperature equipment such as oil refining, chemical industry, is one of the commonly used types of steel pressure vessels .

Chemical composition


Chemical composition (%)

C

Si

Mn

P

S

Cu

Cr

Mo

12CrMo

≤0.15

0.2-0.4

0.4-0.7

≤0.04

≤0.04

0.3

0.4-0.7

0.4-0.55

15CrMo

0.12-0.18

0.2-0.4

0.4-0.7

≤0.04

≤0.04

≤0.3

0.8-1.1

0.4-0.55

20CrMo

0.17-0.24

0.2-0.4

0.4-0.7

≤0.04

≤0.04

≤0.3

0.8-1.1

0.15-0.25

30CrMo

0.26-0.34

0.2-0.4

0.4-0.7

≤0.04

≤0.04

≤0.3

0.8-1.1

0.15-0.25

35CrMo

0.32-0.4

0.2-0.4

0.4-0.7

≤0.04

≤0.04

≤0.3

0.8-1.1

0.15-0.25

35CrMo

0.38-0.45

0.2-0.4

0.5-0.8

≤0.04

≤0.04

≤0.3

0.9-1.2

0.15-0.25

34CrMo

0.32-0.4

0.17-0.37

0.4-0.7

≤0.035

≤0.03


0.9-1.3

0.2-0.3

34CrMo1A

0.32-0.4

0.17-0.37

0.4-0.7

≤0.035

≤0.03


0.9-1.2

0.4-0.55

40CrMo

0.38-0.45

0.17-0.37

0.75-1

≤0.03

≤0.03


0.8-1.1

0.15-0.25

12Cr3Mo

≤0.12

0.17-0.37

0.5-0.8

≤0.035

0.03


2.5-3

0.2-0.3

25CrMo1

0.2-0.3

0.17-0.37

0.4-0.7

≤0.04

≤0.04


1-1.3

0.9-1.1

Mechanical properties

Material

Condition

Ts  Mpa

Ys MPa  

Elogation2’’%

Hardness rockwell

4130

Cold Drawn N

590-760

480-590

20-30

B 90-96

4142

Hot rolled A

620-690

410-480

20-30

B 90-95

Cold drawn A

720-830

590-660

10-25

B 96-100

4150

Hot rolled A

620-760

450-520

20-30

B 90-96

INDUSTRY APPLICATIONS – USES FOR

In the power generation industry, chemical processing, and petroleum refinement, chrome moly alloy tube has become the industry standard.

The Aviation industry uses it typically in the fuselage of smaller aircraft.

It is used for sport and racing vehicles; roll bars, cages, safety etc.

Used for bike frames, particularly high end cycle frames. 

The 4120 AISI code defines the chemical composition of the steel (approximation).  In this case the 41 is the chromium and molybdenum content ration of the low alloy and the 30 is the carbon content percentage of the steel.

Advantage:

1. Good quenching performance, can be used for deep quenching, rather than the market anti-saw lock surface quenching

2. Less tendency to temper brittleness

3.It is good for High temperature processing,And beautiful appearance after processing

4.good welding property

5.Impact absorption performance is good, hammer hit will have a sense of rebound, not violent destruction

 Chrome Moly Pipes and Tubes Application Industry

alloy steel 2

alloy steel 3

                    OIL & GAS INDUSTRY                                                      CHEMICAL INDUSTRY

alloy steel 5alloy steel 7

                          POWER INDUSTRY                                                                   AUTOMOTIVE INDUSTRY

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