NO

등급 ①

화학성분%

기계적 성질

C

Mn

P

S

Si

Cr

Mo

Ni

Cu

V

Nb

N

Al

Ti

Zr

W

B

인장
MPa

생산하다
MPa

연장하다
패/티

손재주
HB

1

WPB
② ③ ④ ⑤ 여섯

≤0.30

0.29-
1.06

≤
0.050

≤
0.058

≥
0.10

≤
0.40

≤
0.15

≤
0.40

≤
0.40

≤
0.08

—

—

—

—

—

—

—

415-
585

≥240

22/14%

≤
197

2

WPC
③ ④⑤ ⑥

≤
0.35

0.29-
1.06

≤
0.050

≤
0.058

≥
0.10

≤
0.40

≤
0.15

≤
0.40

≤
0.40

—

≤
0.08

—

—

—

—

—

—

485-
655

≥
275

22/14%

≤
197

3

WP1

≤
0.28

0.30-
0.90

≤
0.045

≤
0.045

0.10-
0.50

—

0.44-
0.65

—

—

—

—

—

—

—

—

—

—

380-
555

≥205

22/14%

≤
197

4

WP12 1

0.05-
0.20

0.30-
0.80

≤
0.045

≤
0.045

≤
0.60

0.80-
1.25

0.44-
0.65

—

—

—

—

—

—

—

—

—

—

415-
585

≥220

22/14%

≤
197

WP12 2

485-
655

≥275

22/14%

≤
197

5

WP11 1

0.05-
0.15

0.30-
0.60

≤
0.030

≤
0.030

0.50-
1.00

1.00-
1.50

0.44-
0.65

—

—

—

—

—

—

—

—

—

—

415-
585

≥205

22/14%

≤
197

6

WP11 2

0.05-
0.20

0.30-
0.80

≤
0.040

≤
0.040

0.50-
1.00

1.00-
1.50

0.44-
0.65

—

—

—

—

—

—

—

—

—

—

485-
655

≥275

22/14%

≤
197

WP11 3

520-
690

≥310

22/14%

≤
197

7

WP22 1

0.05-
0.15

0.30-
0.60

≤
0.040

≤
0.040

≤
0.50

1.90-
2.60

0.87-
1.13

—

—

—

—

—

—

—

—

—

—

415-
585

≥205

22/14%

≤
197

WP22 3

520-
690

≥310

22/14%

≤
197

9

WP9 1

≤0.15

0.30-
0.60

≤
0.030

≤
0.030

0.25-
1.00

8.0-
10.0

0.90-
1.10

—

—

—

—

—

—

—

—

—

—

415-
585

≥205

22/14%

≤
217

WP9 3

520-
690

≥310

22/14%

≤
217

10

WP91

0.08-
0.12

0.30-
0.60

≤
0.020

≤
0.010

0.20-
0.50

8.0-
9.5

0.85-
1.05

≤
0.40

—

0.18-
0.25

0.06-
0.10

0.03-
0.07

≤
0.02

≤
0.01

≤
0.01

—

—

585-
760

≥415

20/—%

≤
248

11

WP911

0.09-
0.13

0.30-
0.60

≤
0.020

≤
0.010

0.10-
0.50

8.5-
9.5

0.90-
1.10

≤
0.40

—

0.18-
0.25

0.06-
0.10

0.04-
0.09

≤
0.02

≤
0.01

≤
0.01

0.90-
1.10

0.0003-
0.0006

620-
840

≥440

20/—%

≤
248