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JFS Steel's Special Steel Material and Machining Services

Ju Feng Special Steel Co., Ltd. is an industrial steel materials, steel parts and steel machining services supplier from Taiwan. Along with steel bars, steel plates and steel tubes supply, steel cutting, drilling, machining and heat treatment services are also provided.

JFS Steel has been offering customers special steel materials and steel machining solutions since 2006. With both highly skilled technology and 47 years of experience, JFS Steel always makes sure to meet each customer's demands.

Steel Grades

Grades Chart

Ju Feng provide material grade of various countries for customers to refer.

Material grade comparison table

specification / material Japan
JIS
USA
AISI
China
GB
Germany
DIN
Inter
ISO
EU
EN
Carbon Steel SS400 A529 Q235 RSt42-2
St 44-2
E275B S275JR 
S15C 1015  15 C15
CK15
C15E4 C15E
S25C 1025 25 CK25 C25E4 C25E
S45C 1045 45 CK45 C45 C45E
C45
S50C 1050 - CK50 C50E4 C50E 

 Chromium Alloy Steel

SCM415
(SCM21)
- - 15CrMo5 15CrMo5 15CrMo5
SCM420
(SCM21)
4118 - 25CrMo4 25CrMo4 25CrMo4
SCM440
(SCM4)
4140 - 42CrMoS4 42CrMoS4 42CrMoS4

Nickel Chromium Molybdenum Alloy Steel

SNCM220
(SNCM21)
8620 20CrNiMo 20MoCr4 21NiCrMo2 20NiCrMo2-2
SNCM420
(SNCM23)
4320 20CrNi2Mo - - -
SNCM439
(SNCM8)
4340 40CrNiMo 40CrNiMo - -

Aluminum Chromium Molybdenum Alloy Steel

SACM645 C1.D - 34CrA1Mo5 - -
Mold Steel SKD11 D2 Cr12Mo1V1 X155CrVMo121 - -
SKD61 H13 4Cr5MoSiV1 X40CrMoV5-1 - X40CrMoV5-1
- - - - -
Bearing Steel SUJ2 52100 Cr2
GCr15
100Cr6 - 102Cr6
High Carbon Steel SK2 - - C125W - C120U
SK3 W5 C105W1 T10A C105U C105U 
SKS3 - - - - 95MnWCr5 
SK4 W110 T10 C105W2 - C90U
Free Cutting Steel SUM23 1215 Y13 9SMn36 - -
12L14 - 9SMnPb36 - -
SUM43 1144 - - - -