材料名称 |
标准 |
牌号 |
化学成分 |
机械性能 |
备注 |
||||||||||||||
C |
Mn |
P |
S |
Si |
Cr |
Ni |
Mo |
V |
Al |
σb ≥ MPa |
σs ≥ MPa |
δ ≥ |
Ψ ≥ |
αk |
硬度 |
||||
螺栓 |
AST M A 193 |
B7 |
0.37 ~ 0.49 |
0.65 ~ 1.10 |
0.035 |
0.040 |
0.15 ~ 0.35 |
0.75 ~ 1.20 |
|
0.15 ~ 0.25 |
|
|
860 |
720 |
16 |
50 |
|
321HB/35HRC |
≤ M64 |
B7M |
0.37 ~ 0.49 |
0.65 ~ 1.10 |
0.035 |
0.040 |
0.15 ~ 0.35 |
0.75 ~ 1.20 |
|
0.15 ~ 0.25 |
|
|
690 |
550 |
18 |
50 |
|
235HB/99HRB |
≤ M100 |
||
B16 |
0.36 ~ 0.47 |
0.45 ~ 0.70 |
0.035 |
0.040 |
0.15 ~ 0.35 |
0.80 ~ 1.15 |
|
0.50 ~ 0.65 |
0.25 ~ 0.35 |
0.015 |
860 |
725 |
18 |
50 |
|
321HB/35HRC |
≤ M64 |
||
B8 |
≤ 0.08 |
≤ 2.00 |
0.045 |
0.030 |
≤ 1.00 |
18.0 ~ 20. 0 |
8.0 ~ 11. 0 |
|
|
|
515 |
205 |
30 |
50 |
|
223HB/96HRB |
|
||
B8M |
≤ 0.08 |
≤ 2.00 |
0.045 |
0.030 |
≤ 1.00 |
16.0 ~ 18. 0 |
10.0 ~ 14. 0 |
2.00 ~ 3.00 |
|
|
515 |
205 |
30 |
50 |
|
223HB/96HRB |
|
||
AST M A 320 |
L7 |
0.38 ~ 0.48 |
0.75 ~ 1.00 |
0.035 |
0.040 |
0.15 ~ 0.35 |
0.80 ~ 1.10 |
|
0.15 ~ 0.25 |
|
|
860 |
725 |
16 |
50 |
|
|
≤ M64 |
|
螺母 |
AST M A 194 |
2H |
≥ 0.04 |
1.00 |
0.040 |
0.050 |
0.40 |
|
|
|
|
|
|
|
|
|
|
248~327HB |
≤ M64 |
2HM |
≥ 0.04 |
1.00 |
0.040 |
0.050 |
0.40 |
|
|
|
|
|
|
|
|
|
|
159~235HB |
|
||
7 |
0.37 ~ 0.49 |
0.65 ~ 1.10 |
0.035 |
0.040 |
0.15 ~ 0.35 |
0.75 ~ 1.20 |
|
0.15 ~ 0.25 |
|
|
|
|
|
|
|
248~327HB |
|
||
8 |
0.08 |
2.00 |
0.045 |
0.030 |
1.00 |
18.0 ~ 20. 0 |
8.0 ~ 11. 0 |
|
|
|
|
|
|
|
|
126~300HB |
|
||
8M |
0.08 |
2.00 |
0.045 |
0.030 |
1.00 |
16.0 ~ 18. 0 |
10.0 ~ 14. 0 |
2.00 ~ 3.00 |
|
|
|
|
|
|
|
126~300HB |
|
||
4 |
0.40 ~ 0.50 |
0.70 ~ 0.90 |
0.035 |
0.040 |
0.15 ~ 0.35 |
|
|
0.20 ~ 0.30 |
|
|
|
|
|
|
|
248~327HB |
|
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