Main Grades and Chemical Composition

Carbon Steel

Grade
C
Si
Mn
P
S
20
0.17-0.23
0.17-0.37
0.35-0.65
≤0.035
≤0.035
35
0.32-0.39
0.17-0.37
0.50-0.80
≤0.035
≤0.035
45
0.42-0.50
0.17-0.37
0.50-0.80
≤0.035
≤0.035

Alloy Steel

Grade
C
Si
Mn
P
S
Cr
Ni
Mo
ZG40Cr
0.35-0.45
0.20-0.40
0.50-0.80
≤0.030
≤0.030
0.80-1.10
≤0.15
ZG20CrMo
0.17-0.25
0.17-0.37
0.50-0.80
≤0.030
≤0.030
0.80-1.10
0.15-0.25
ZG42CrMo
0.38-0.45
0.3-0.6
0.6-1.0
≤0.035
≤0.035
0.8-1.2
0.15-0.25
ZG1Cr13
0.08-0.15
≤1.0
≤0.6
≤0.04
≤0.030
12.0-14.0
ZG2Cr13
0.16-0.24
≤1.0
≤0.6
≤0.04
≤0.030
12.0-14.0
≤0.6
ZG1Cr17
≤0.12
≤1.2
≤0.7
≤0.04
≤0.030
16.0-18.0
ZG0Cr18Ni9
≤0.08
≤1.5
0.8-2.0
≤0.04
≤0.030
17.0-20.0
8.0-11.0
4130
0.28-0.33
0.15-0.35
0.40-0.60
≤0.035
≤0.04
0.80-1.10
0.15-0.25
4140
0.38-0.43
0.15-0.35
0.75-1.0
≤0.035
≤0.04
0.80-1.10
0.15-0.25
8620
0.15-0.25
0.15-0.35
0.70-0.90
≤0.035
≤0.04
0.40-0.60
0.40-0.70

Stainless Steel

Grade
C
Si
Mn
P
S
Cr
Ni
Mo
430
≤0.12
≤1.0
≤1.0
≤0.040
≤0.030
16.0-18.0
≤0.75
≤0.5
201
≤0.15
≤1.0
5.50-7.50
≤0.060
≤0.030
16.0-18.0
3.5-5.5
202
≤0.15
≤1.0
7.50-10.0
≤0.060
≤0.030
17.0-19.0
4.0-6.0
304
≤0.08
≤1.0
≤2.0
≤0.045
≤0.030
18.0-20.0
8.0-10.5
304L
≤0.03
≤1.0
≤2.0
≤0.045
≤0.030
18.0-20.0
8.0-12.0
316
≤0.08
≤1.0
≤2.0
≤0.045
≤0.030
16.0-18.0
10.0-14.0
2.0-3.0
316L
≤0.03
≤1.0
≤2.0
≤0.045
≤0.030
16.0-18.0
10.0-14.0
2.0-3.0
CF-8
≤0.08
≤2.0
≤1.50
≤0.040
≤0.040
18.0-21.0
8.0-11.0
CF-8M
≤0.08
≤2.0
≤1.50
≤0.040
≤0.040
18.0-21.0
9.0-12.0
2.0-3.0
CF-3M
≤0.03
≤1.50
≤1.50
≤0.040
≤0.040
17.0-21.0
9.0-12.0
2.0-3.0
17-4 PH
≤0.07
≤1.00
≤1.00
≤0.040
≤0.030
15.5-17.5
3.0-5.0

Cooper Alloy

Grade
Copper
Tin
Lead
Zinc
Nickel
Aluminum
Iron
Manganese
C 86200
63
25
4
3
3.8
C 83600
85
5
5
5
C 95800
81.3
4.5
9
4
1.2

DIMENSION TOLERANCE (VDG Merkblad P690)

Angel Tolerance: ±0.5°~±0.1.0°

Straightness: 0.005 per inch.

Surface Roughness: Ra6.3

Casting Weight: 5g---35kg.

Linear Tolerance

Nominal dimension (mm)
L*W*H(mm)
Centre line distances(mm)
D1
D2
D3
D1
D2
>From
≤To
Tolerance
Field
Tolerance
Field
Tolerance
Field
Tolerance
Tolerance
0
6
±0.10
0.20
±0.08
0.16
±0.06
0.12
±0.25
±0.16
6
10
±0.12
0.24
±0.10
0.20
10
14
±0.15
0.30
±0.12
0.24
±0.09
0.18
14
18
±0.20
0.40
±0.14
0.28
18
24
±0.25
0.50
±0.17
0.34
±0.12
0.23
±0.32
±0.20
24
30
±0.30
0.60
±0.20
0.40
±0.14
0.27
30
40
±0.37
0.74
±0.25
0.50
±0.17
0.33
±0.50
±0.30
40
50
±0.44
0.88
±0.30
0.60
±0.20
0.39
50
65
±0.52
1.04
±0.38
0.76
±0.23
0.46
±0.71
±0.45
65
80
±0.60
1.20
±0.46
0.92
±0.27
0.53
80
100
±0.68
1.36
±0.53
1.06
±0.30
0.60
0.9
±0.60
100
120
±0.76
1.52
±0.60
1.20
±0.33
0.66
120
140
±0.84
1.68
±0.65
1.30
±0.36
0.71
±1.15
±0.85
140
160
±0.92
1.84
±0.72
1.44
±0.38
0.76
160
180
±1.02
2.04
±0.80
1.60
±0.42
0.81
180
200
±1.12
2.24
±0.88
1.76
±0.43
0.86
±1.80
±1.00
200
225
±1.28
2.56
±0.90
1.90
±0.47
0.93
225
250
±1.44
2.88
±1.05
2.10
±0.51
1.02
250
280
±1.64
3.28
±1.15
2.30
±0.56
1.12
±2.20
±1.25
280
315
±1.84
3.68
±1.25
2.50
±0.63
1.26
315
355
±2.10
4.20
±1.40
2.60
±0.71
1.42
±2.60
±1.60
355
400
±2.40
4.80
±1.60
3.20
±0.80
1.60

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