(1)尺寸规格见表4~54。
表4--54热轧环件的尺寸规格 (mm)
|
外 径 |
高 度 |
内 径 |
壁 厚 |
|
600~2000 |
70~220 |
≥500 |
50~160 |
(2)牌号和化学成分见表4~55
表4-55热轧环件的牌号和化学成分
|
牌号 |
化学成分(质量分数)(%) | ||||||
|
C |
Si |
Mn |
Cr |
Mo |
P |
S | |
|
10 |
O.07~0.14 |
O.17~0.37 |
0.35~0.65 |
|
|
≤O.035 |
≤0.035 |
|
15 |
0.12~O.19 |
0.17~0.37 |
O.35~O.65 |
|
|
≤O.035 |
≤O.035 |
|
20 |
0.17~0.24 |
O.17~O.37 |
0.35~0.65 |
|
|
≤0.035 |
≤0.035 |
|
25 |
O.22~0.30 |
0.17~0.37 |
O.50~O.80 |
|
|
≤O.035 |
≤O.035 |
|
30 |
O.27~0.35 |
O.17~O.37 |
0.50~0.80 |
|
|
≤0.035 |
≤0.035 |
|
35 |
O.32~O.40 |
0.17~0.37 |
O.50~O.80 |
|
|
≤O.035 |
≤O.035 |
|
40 |
0.37~O.45 |
O.17~O.37 |
0.50~0.80 |
|
|
≤0.035 |
≤0.035 |
|
45 |
0.42~O.50 |
0.17~O.37 |
O.50~0.80 |
|
|
≤O.035 |
≤O.035 |
|
50 |
0.47~0.55 |
O.17~O.37 |
0.50~0.80 |
|
|
≤0.035 |
≤0.035 |
|
16Mn |
0.12~O.20 |
O.20~0.55 |
1.20~1.60 |
|
|
≤O.035 |
≤O.035 |
|
50Mn |
O.48~0.56 |
O.17~O.37 |
O.70~1.00 |
|
|
≤0.035 |
≤0.035 |
|
40Cr |
O.37~0.44 |
0.17~O.37 |
O.50~O.80 |
O.80~1.10 |
|
≤O.030 |
≤O.030 |
|
42CrM0 |
0.38~O.45 |
0.17~0.37 |
O.50~0.80 |
0.90~1.20 |
0.15~O.25 |
≤0.030 |
≤0.030 |
|
42CrMoA |
O.38~O.45 |
O.17~0.37 |
0.50~0.80 |
O.90~1.20 |
O.15~O.25 |
≤0.025 |
≤0.025 |
|
50SiMn |
O.45~0.56 |
O.80~1.10 |
O.80~1.10 |
|
|
≤O.030 |
≤O.030 |
|
35SiMn |
O.32~0.40 |
1.10~1.40 |
1.10~1.40 |
|
|
≤O.030 |
≤0.030 |
|
35CrMo |
0.32~O.40 |
O.17~0.37 |
0.40~0.70 |
O.80~1.10 |
O.15~0.25 |
≤0.030 |
≤O.030 |
|
50CrMoA |
O.45~0.54 |
O.17~O.37 |
0.50~O.80 |
O.90~1.20 |
O.15~O.25 |
≤0.025 |
≤0.025 |
注:钢中残余Cr、Ni、Cu含量应符合GB/T1591、GB/T 699、GB/T 3077相应标准规定。
(3)力学性能 见表4-56~表4-58。
表4-56 优质碳素钢结构钢环件的力学性能。
|
牌号 |
交货状态 |
壁厚/mm |
抗拉强度
ób
/MPa |
伸长率
δ5
(%) |
断面收缩率
ψ
(%) |
冲击吸收功
Aku
/J |
布氏硬度
HBS
1O/3000 |
|
≥ | |||||||
|
15 |
正火 |
≤100 |
345 |
27 |
53 |
|
|
|
>100 |
335 |
25 |
50 |
| |||
|
20 |
≤100 |
390 |
24 |
53 |
|
| |
|
>100 |
370 |
23 |
50 |
| |||
|
25 |
≤100 |
420 |
22 |
48 |
39 |
| |
|
>100 |
390 |
20 |
46 |
31 | |||
|
30 |
≤100 |
470 |
19 |
45 |
31 |
| |
|
>100 |
460 |
18 |
40 |
24 | |||
|
35 |
≤100 |
510 |
18 |
43 |
31 |
| |
|
>100 |
490 |
18 |
40 |
24 | |||
|
40 |
≤100 |
550 |
17 |
40 |
24 |
| |
|
>100 |
530 |
17 |
36 |
24 | |||
|
45 |
≤100 |
590 |
15 |
32 |
31 |
≤241 | |
|
>1oo |
570 |
15 |
30 |
27 | |||
|
50 |
≤100 |
61O |
13 |
30 |
31 | ||
|
>100 |
590 |
12 |
28 |
27 | |||
|
50Mn |
≤100 |
635 |
13 |
35 |
31 |
207~262 | |
|
>100 |
610 |
12 |
33 |
27 | |||
表4~57合金结构钢环件的力学性能
|
牌号 |
交货
状态 |
壁厚
/mm |
抗拉强度
ób
/MPa |
伸长率
δ5
(%) |
断面收缩率
ψ(%) |
冲击吸收功
Aku
/J |
布氏硬度
HBS
10/3000 |
|
≥ | |||||||
|
40Cr |
调质 |
≤60 |
785 |
9 |
35 |
31 |
207~206 |
|
61~80 |
735 |
9 |
30 |
27 | |||
|
81~140 |
685 |
9 |
30 |
24 | |||
|
35CrMo |
调质 |
≤70 |
735 |
15 |
40 |
47 |
207~262 |
|
71~140 |
685 |
15 |
40 |
39 | |||
|
42CrMo(42CrMoA) |
调质 |
≤70 |
785 |
12 |
40 |
47 |
207~262 |
|
71~140 |
735 |
1O |
35 |
39 | |||
|
35SiMn |
调质 |
≤60 |
785 |
12 |
40 |
39 |
207~262 |
|
61~80 |
735 |
12 |
35 |
35 | |||
|
81~140 |
685 |
12 |
35 |
31 | |||
|
50SiMn |
调质 |
≤60 |
835 |
1O |
35 |
31 |
207~262 |
|
61~80 |
785 |
10 |
35 |
27 | |||
|
81~140 |
735 |
10 |
35 |
24 | |||
|
50CrMoA |
调质 |
≤140 |
835 |
8 |
|
39 |
255~31 |
表4-58法兰环件的力学性能
|
牌号 |
交货
状态 |
壁厚
/mm |
抗拉强度ób /MPa |
伸长率
δ5
(%) |
断面收缩率
ψ
(%) |
冲击吸收功
Aku
/J |
布氏硬度
HBS
10/3000 |
|
≥ | |||||||
|
1O |
正火 |
≤100 |
335 |
205 |
31 |
|
|
|
>100 |
315 |
185 |
30 |
| |||
|
15 |
≤100 |
355 |
205 |
27 |
|
| |
|
>100 |
335 |
185 |
26 |
| |||
|
20 |
≤100 |
370 |
215 |
24 |
43 |
109~156 | |
|
>100 |
370 |
195 |
23 |
39 | |||
|
25 |
≤100 |
420 |
235 |
22 |
39 |
111~170 | |
|
>100 |
390 |
215 |
20 |
39 | |||
|
16Mn |
正火或
调质 |
≤100 |
490~610 |
295 |
20 |
47 |
120~180 |
|
>100 |
470~620 |
275 |
19 |
47 | |||
(4)用途适用于制造齿圈、轴承圈、磨环及压力容器平焊法兰、高颈法兰、浮头钩圈法兰和高颈搪瓷法兰等。
