| 目次へ 許容曲げ応力(σ0) |
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| 種別 |
材料記号 |
引張り強さσ |
硬さ |
許容曲げ応力σ0 |
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| N/mm2 |
HB |
N/mm2 |
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| 鋳鉄 |
FC150 |
≧150 |
140〜160 |
68 |
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| FC200 |
≧200 |
160〜180 |
88 |
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| FC250 |
≧250 |
180〜240 |
107 |
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| FC300 |
≧300 |
190〜240 |
127 |
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| 鋳鋼 |
SC410 |
≧410 |
140 |
117 |
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| SC450 |
≧450 |
160 |
186 |
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| SC480 |
≧480 |
190 |
196 |
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| 機械構造用炭素鋼 |
S25C |
≧440 |
123〜183 |
206 |
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| S35C |
≧510 |
149〜207 |
255 |
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| S45C |
≧570 |
167〜229 |
294 |
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| はだ焼鋼 |
S15CK |
≧500 |
油焼入れ400 |
294 |
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| SNC415 |
≧785 |
水焼入れ600 |
343〜392 |
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| SNC815 |
≧980 |
392〜539 |
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| ﾆｯｹﾙｸﾛﾑ鋼 |
SNC236 |
≧735 |
212〜255 |
343〜392 |
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| SNC631 |
≧834 |
248〜302 |
392〜588 |
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| SNC836 |
≧932 |
269〜321 |
392〜588 |
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| 砲金 |
砲金 |
≧176 |
85 |
≧49 |
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| ﾃﾞﾙﾀﾒﾀﾙ |
ﾃﾞﾙﾀﾒﾀﾙ |
343〜588 |
- |
98〜196 |
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| りん青銅鋳物 |
りん青銅鋳物 |
186〜294 |
70〜100 |
49〜68 |
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| ﾆｯｹﾙ青銅鋳物 |
ﾆｯｹﾙ青銅鋳物 |
627〜882 |
180〜260 |
196〜294 |
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| 歯車用青銅 |
歯車用青銅 |
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167 |
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| アンチモン青銅 |
アンチモン青銅 |
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103 |
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| ﾌｪﾉｰﾙ樹脂など |
ﾌｪﾉｰﾙ樹脂など |
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| ナイロンMC901 |
ナイロンMC901 |
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| ジュラコンM90 |
ジュラコンM90 |
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| 日本機械学会編「機械工学便覧」他 |
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| ●ナイロンMC901曲げ強さ[参考：KHKカタログ] |
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| 周囲温度[deg] |
0 |
20 |
40 |
60 |
80 |
100 |
120 |
| 許容曲げ強さ[N/mm2] |
油潤滑 |
30.38 |
22.54 |
18.13 |
15.68 |
13.72 |
12.74 |
11.76 |
| 無潤滑 |
17.15 |
13.72 |
11.27 |
9.8 |
8.82 |
8.33 |
7.84 |
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| ●ジュラコンM90標準状態での最大曲げ応力 σb' [N/mm2] |
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| 繰り返し回数[回] |
10^4 |
10^5 |
10^6 |
10^7 |
10^8 |
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| モジュール |
0.8 |
57.82 |
49 |
43.12 |
39.2 |
36.26 |
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| 1 |
52.92 |
44.1 |
39.2 |
34.3 |
31.36 |
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| 2 |
27.44 |
20.58 |
14.7 |
10.78 |
7.84 |
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