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Home > International Steel Spec.
       
Standard Number  :   
 
Carbon steels for Axle
Standard Number : KS R9220
Symbol : RSA1 RSA2 SFA60A SFA60B
Section : Aluminum and aluminum alloys
Classification : Steels for special purposes
 
 

Carbon steel for Axle(KS R9220-2000).

 

 

Std. No

Designation

Section

Chemical composition(%)

Heat treatment

Mechanical

property

C

Si

Mn

P

S

H

ppm

O2

ppm

Normalizing

Quenching

Tempering

YS

N/mm2

TS

N/mm2

EL

%

ROA

%

KS R9220

(2000)

RSA1

0.35

0.35~

0.48

0.15~

0.40

0.40~

0.85

≤0.035

≤0.035

≤2.5

≤.25

830

880

-

-

≥295

≥590

≥20

≥30

RSA2

-

-

-

0.40~

0.85

≤0.035

≤0.035

-

-

-

880

880

550

650

≥345

≥640

≥23

≥45

JIS

SFA60A

-

-

-

-

≤0.035

≤0.040

-

-

830

880

-

-

-

≥60

≥20

≥30

SFA60B

-

-

-

-

≤0.045

≤0.045

-

-

830

880

-

-

-

≥60

≥20

≥30

SFA65A

-

-

-

-

≤0.035

≤0.040

-

-

830

880

-

600

650

-

≥65

≥23

≥45

SFA65B

-

-

-

-

≤0.045

≤0.045

-

-

830

880

-

-

-

≥65

≥23

≥45

AAR

(M101)

F

-

0.45~

0.59

≤0.15

0.60~

0.90

≤0.045

≤0.050

-

-

830

880

-

-

-

≥60

≥22

≥37

UIC

(811)

-

-

-

≤0.50

≤1.20

≤0.050

≤0.050

-

-

830

880

-

-

-

50

65

-

-

IRS

R16

-

-

-

-

≤0.050

≤0.050

-

-

830

880

-

-

-

54

66

Min:21

Min:17

-

BS24

(PART1)

SECT. 1

-

-

-

-

≤0.050

≤0.050

-

-

830

880

-

-

-

44

52

≥25

-

 
 
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