Single values are maxima unless indicated otherwise; unlisted elements and blank cells are not assumed zero. Alternative limits, optional additions and analysis tolerances require the relevant table notes and order agreement. This reference table does not replace the complete standard.
3.力学性能
表C.5-不含硼合金钢牌号的力学性能
Steel name
Diameter
Delivery condition
+AC or +AC+PE
+AC+C+AC
+AC+C+AC+LC
above mm
up to mm
Rm max. MPa
Z min %
Rm max. MPa
Z min. %
Rm max. MPa
Z min. %
41CrNiMo2 41CrNiMoS2
2
5
—
—
640
60
680
55
5
40
——
——
640
60
680
55
4.淬透性要求
表C.7-具有规定 (正常) 淬透性的不含硼的钢种的硬度限值 (H级)
Steel name
Sym- bol
Austenitizing temperature C±5℃
Limits of range
Hardness HRC at a distance from quenched end of test piece(in mm) of
1
2
3
4
5
6
7
8
9
10
11
13
15
20
25
30
41CrNiMoS2
min.
53
53
52
50
47
42
38
35
30
28
26
25
24
24
23
—
min.
54
54
54
54
54
54
54
54
53
52
52
51
50
—
—
—
表C.9-淬透性受限的无硼钢种的硬度限值散射带 (HH和HL等级) a
Steel name
Symbol
Austenitizing temperature ℃±5℃
Limits of range
Hardness HRC at a distance from quenched end of test piece(in mm) of
1,5
3
5
7
9
11
13
15
20
25
30
35
40
45
50
41CrNiMo2 41CrNiMoS2
+HH
850
max
60
60
60
59
58
57
55
54
48
42
40
38
37
37
36
min.
55
55
55
53
51
47
44
41
36
33
31
29
28
28
27
+HL
max.
58
58
57
56
54
52
49
48
42
37
35
34
33
33
32
min.
53
53
52
50
47
42
38
35
30
28
26
25
24
24
23
min.
53
53
53
53
52
51
51
51
51
50
50
50
50
49
48
min
50
50
50
50
49
48
48
48
48
47
47
47
46
45
44
This table is not applicable to steels ordered with a restricted range of carbon content,see footnote c)in Table C.2.
