Aisi 4130.pdf 2v487

Material properties Material

4130 (USA / SAE)

Group

Structural and constructional steels

Subgroup

J 404

Comment

Chromium Molybdenum Alloy Steel

Application

Chemical compositions of SAE alloy steels applicable to billets, blooms, slabs, and hot-rolled and cold-finished bars. They are also applicable to wire rods but not to structural shapes, sheet and strip, hot-rolled and cold-rolled, or seamless and welded mechanical tubing.

Chemical Composition [%] Criterion

Min

Max

Aprox

C

0.28

0.33

-

Si

0.15

0.35

-

Mn

0.40

0.60

-

P

-

0.04

-

S

-

0.04

-

Cr

0.80

1.10

-

Mo

0.15

0.25

-

Low cycle fatigue I Condition Quenched and tempered

Direction L

Cyclic yield strength [MPa]

Cyclic strength exponent

Cyclic strength coefficient

0.13

1837.0

797.00

Low cycle fatigue II Condition Quenched and tempered

Direction L

Fatique str. coeff. [MPa]

Fatigue str. exponent

1731.0

-0.08

Fatigue duct. coefficient 0.84

Cross Reference Table Material

Standard

Country

25 CrMo 4

AFNOR NF



25 CD 4

AFNOR NF



4130

AISI

USA

4130 H

AISI

USA

4130 H

AS

Australia

4130

AS

Australia

25 CrMo 4

B.S.

United Kingdom

25 ChML

BDS

Bulgaria

15130

CSN

Czech Republic

GS-25 CrMo 4

DIN



25 CrMo 4

DIN



25 CrMo 4

EN

European Union

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Fatigue duct. exponent -0.68

Cross Reference Table Material

Standard

Country

1.7218

EN

European Union

ML30CrMoA

GB

China

ML30CrMo

GB

China

30CrMo

GB

China

30ChM

GOST

Russia

20ChM

GOST

Russia

SCM 420

JIS

Japan

SCM 430

JIS

Japan

SCCrM 1

JIS

Japan

C 4730

JUS

Yugoslavia

25 CrMo 4

NBN

Belgium

25 CrMo 4

NS

Norway

L 25 HM

PN

Poland

25 HM

PN

Poland

4130 H

SAE

USA

367 (G-25 CrMo 4)

SFS

Finland

SS

Sweden

26 MoCr 11

STAS

Romania

T 30 CrMo 3

2225

STAS

Romania

F.8372 (AM 26 CrMo 4)

UNE

Spain

25 CrMo 4

UNE

Spain

F.8330 (AM 25 CrMo 4)

UNE

Spain

F.222

UNE

Spain

25 CrMo 4 KB

UNI

Italy

25 CrMo 4

UNI

Italy

G41300

UNS

USA

H41300

UNS

USA

1.7218

WN



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