Chemical composition

Material

C %

Mn %

P %

S %

SPCC

≤ 0.15

≤ 0.06

≤ 0.100

≤ 0.050

SPCD

≤ 0.12

≤ 0.50

≤ 0.040

≤ 0.040

SPCE

≤ 0.10

≤ 0.45

≤ 0.030

≤ 0.030

SPCF

≤ 0.08

≤ 0.45

≤ 0.030

≤ 0.030

SPCG(1)

≤ 0.02

≤ 0.25

≤ 0.020

≤ 0.020

Thickness deviation

nominal thickness mm

deviation mm

0.08 ＜ H ＜ 0.3

± 0.01

0.3 ≤ H ＜ 0.5

± 0.015

0.5 ≤ H ＜ 0.8

± 0.02

0.8 ≤ H ＜ 1.0

± 0.026

1.0 ≤ H ＜ 1.5

± 0.03

H ＞ 1.5

± 0.035

Width deviation

nominal width mm

deviation mm（general precision）

deviation mm（Higher accuracy）

10 ≤ B ＜ 800

0.20

0.10

ID and OD

Steel strip ID mm

Steel strip OD mm

127

≤ 500

190

≤ 500

250

≤ 600

300

≤ 1100

380

≤ 1000

500

≤ 1400

Class

Class Code

Hardness

HRB

HV

1/8 Hard

8

50～71

95～130

1/4 Hard

4

65～80

115～150

1/2 Hard

2

74～89

135～185

1Hard

1

≥ 85

≥ 170

Material

Tensile strength MPa

Elongation %

Thickness (mm)

≥ 0.25

≥0.25～＜0.40

≥0.40～＜0.60

≥0.60～＜1.00

≥1.00～＜ 1.60

≥1.60～＜2.50

SPCC

≥ 270

≥ 32

≥ 34

≥ 36

≥ 37

≥ 38

SPCD

≥ 270

≥ 34

≥ 36

≥ 38

≥ 39

≥ 40

SPCE

≥ 270

≥ 36

≥ 38

≥ 40

≥ 41

≥ 42