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Alloy Steel Tube Conforming To BS EN10297 Part 1

Shannxi Shew-E Steel Pipe Co.,Ltd | Updated: Oct 11, 2017


Alloy steel tube conforming to BS EN10297 part 1  


BS EN10297 part 1,specifies the technical delivery conditions for seamless circular tubes made of non-alloy and alloy steels for mechanical and general engineering purposes.

There are two parts of steel for BS EN10297 part 1:non-alloy and alloy.today we will make a classification of the alloy part in this article.Among them,the 42CrMo4 and 34CrMo4 with their high mechanical properties and good impact test values,are two of the most widely used grades in the industry.they are typically supplied in the quenched and tempered annealed condition.


Classification of alloy steel grades and delivery condition,Alloy BS EN10297 part 1

Steel grade

Steel number

Normal delivery condition

Classification in accordance

with EN 10020

E355K2

1.0920

+N

Alloy quality steel

E460K2

1.889

+N

Alloy special steel

E730K2

1.889

+QT

41Cr4

1.7035

+QT

25CrMo4

1.7218

30CrMo4

1.7216

34CrMo4

1.7220

42CrMo4

1.7225

36CrNiMo4

1.6511

30CrNiMo8

1.6580

41NiCrMo7-3-2

1.6563

16MnCr5

1.7131

+A, +TH, +FP, +N

16MnCrS5

1.7139

20NiCrMo2-2

1.6523

20NiCrMoS2-2

1.6526

Chemical composition for alloy steel, in % by mass, Alloy BS EN10297 part 1 

Steel grade

C

(max)

Si

(max)

Mn

(max)

P

(max)

S

(max)

Cr

(max)

Mo

(max)

Ni

(max)

E355K2

0.20

0.50

1,65

0,030

0,030

0.30

0.10

0.5

E460K2

0.20

0.60

1.70

0.030

0.030

0.30

0.10

0.8

E730K2

0.20

0.50

1.70

0.025

0.030

0.30

0.45

0.7

41Cr4

0.45

0.40

0.90

0.035

0.035

1.20

0.30

-

25CrMo4

0.29

0.40

0.90

0.035

0.035

1.20

0.30

-

30CrMo4

0.34

0.35

0.60

0.035

0.035

1.15

0.30

-

34CrMo4

0.37

0.40

0.90

0.035

0.035

1.20

0.30

-

42CrMo4

0.45

0.40

0.90

0.035

0.035

1.20

0.30

-

36CrNiMo4

0.40

0.40

0.80

0.035

0.035

1.20

0.30

1.2

30CrNiMo8

0.34

0.40

0.60

0.035

0.035

2.20

0.50

2.2

41NiCrMo7-3-2

0.44

0.30

0.90

0.025

0.025

0.15

0.30

2.0


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