AISI 4140 é¼ä¸¸æ£ã·ã¼ã ãã¬ã¼ããJIS SCM440ãDIN 1.7225
AISI 4140 åéé¼Â 丸æ£ã·ã¼ããã¬ã¼ãã¯ç²å´å¼·åº¦ãé«ãããããæ度ãä½ãã§ããä½æ¸©è¡æé±æ§ãé常ã«é«ããæãããªç¼ãæ»ãèæ§ã¯ããã¾ããã主ã«ç¼å ¥ããç¼ãæ»ãããç¶æ ã§ä½¿ç¨ããã¾ããè¡æè·éããããé«å¼·åº¦é¨åãæé¢ã®å¤§ããªç¶æãªã©å¿åããããé¨æã®è£½é ã«ä½¿ç¨ããã¾ãã横åéé æ©ã®æ¨ªååå¿è»¸ãéé ãã¬ã¹ã®ã¯ã©ã³ã¯ã·ã£ãããªã©ãDIN 1.7225ãJIS SCM440ã¨åçã®ã°ã¬ã¼ãã§ãã 4140 é¼ã®ç¹æ§ã¨åå¦çµæã¯æ¬¡ã®ã¨ããã§ãã
4140 é¼ã®æ©æ¢°çæ§è³ª
| ãããã㣠| ã¡ããªã㯠| ã¤ã³ããªã¢ã« |
|---|---|---|
| æå¼µå | ï¼1080MPa | ï¼156640psi |
| éä¼å¼·åº¦ | ï¼930MPa | ï¼134890psi |
| ç ´æ伸㳠| ï¼12% | ï¼12% |
| é¢ç©ã®åæ¸ | ï¼45% | ï¼45% |
| 硬度 | â¤217HB | â¤217HB |
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次ã®è¡¨ã¯ãAISI 4140 åéé¼ã®åå¦çµæã示ãã¦ãã¾ãã
| è¦ç´ | ã³ã³ãã³ã (%) |
|---|---|
| ã¯ãã ãCr | 0.80 – 1.10 |
| ãã³ã¬ã³ãããã½ã¿å· | 0.75 – 1.0 |
| çç´ ãC | 0.380 – 0.430 |
| ã·ãªã³ã³ãSi | 0.15 – 0.30 |
| ã¢ãªããã³ãã¢ãªããã³ | 0.15 – 0.25 |
| ç¡«é»ãS | 0.040 |
| ãªã³ãP | 0.035 |
| éãé | ãã©ã³ã¹ |
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AISI 4140 åéé¼ã®ç©ççç¹æ§ã次ã®è¡¨ã«ç¤ºãã¾ãã
| ãããã㣠| ã¡ããªã㯠| ã¤ã³ããªã¢ã« |
|---|---|---|
| å¯åº¦ | 7.85g/cm3 | 0.284ãã³ã/ã¤ã³ã3 |
| èç¹ | 1416â | 2580°F |
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次ã®è¡¨ã¯ãAISI 4140 åéé¼ã®æ©æ¢°çç¹æ§ã®æ¦è¦ã示ãã¦ãã¾ãã
| ãããã㣠| ã¡ããªã㯠| ã¤ã³ããªã¢ã« |
|---|---|---|
| æå¼µå | 655MPa | 95000 psi |
| éä¼å¼·åº¦ | 415MPa | 60200psi |
| ä½ç©å¼¾æ§ç (é¼ã«å ¸åç) | 140GPa | 20300 ksi |
| ããæå¼¾æ§ç (é¼ã«å ¸åç) | 80GPa | 11600ksi |
| å¼¾æ§ç | 190ï½210GPa | 27557-30458 ksi |
| ãã¢ã½ã³æ¯ | 0.27-0.30 | 0.27-0.30 |
| ç ´æ伸ã³(50mmåä½) | 25.70% | 25.70% |
| 硬度ãããªãã« | 197 | 197 |
| 硬度ããã¼ãï¼ããªãã«ç¡¬åº¦ããæç®ï¼ | 219 | 219 |
| 硬度ãããã¯ã¦ã§ã« B (ããªãã«ç¡¬åº¦ããæç®) | 92 | 92 |
| 硬度ãããã¯ã¦ã§ã« C (ããªãã«ç¡¬åº¦ããæç®ãé常㮠HRC ç¯å²ãä¸åãå¤ãæ¯è¼ã®ã¿ãç®çã¨ãã¦ãã¾ã) | 13 | 13 |
| 硬ããããã«ã¼ã¹ï¼ããªãã«ç¡¬ãããæç®ï¼ | 207 | 207 |
| 被åæ§ (AISI 1212 ã 100 ã¨ãã被åæ§) | 65 | 65 |
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AISI 4140 åéé¼ã®ç±ç¹æ§ã次ã®è¡¨ã«ç¤ºãã¾ãã
| ãããã㣠| ã¡ããªã㯠| ã¤ã³ããªã¢ã« |
|---|---|---|
| ç±è¨å¼µä¿æ° (@ 0-100°C/32-212°F) | 12.2μm/mâ | 6.78 μã¤ã³ã/ã¤ã³ã°F |
| ç±ä¼å°çï¼@100âï¼ | 42.6W/mK | 296 BTU ã¤ã³ã/æ.ft².°F |
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AISI 4140 åéé¼ã¨åçã®ãã®ä»ã®å称ã次ã®è¡¨ã«ç¤ºãã¾ãã
| 6349 ã® | ASTM A193 (B7ãB7M) | ASTM A506 (4140) | ASTM A752 (4140) |
| AMS 6381 | ASTM A194 (7ã7M) | ASTM A513 | ASTM A829 |
| AMS 6382 | ASTM A29 (4140) | ASTM A513 (4140) | SAE J1397 (4140) |
| AMS 6390 | ASTM A320 (L7ãL7MãL7D) | ASTM A519 (4140) | SAE J404 (4140) |
| AMS 6395 | ASTM A322 (4140) | ASTM A646 (4140) | SAE J412 (4140) |
| AMS 6529 | ASTM A331 (4140) | ASTM A711 | |
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