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- تولید و صاردات انواع پیچ آلن آهن و خشکه
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?????????? ?? ??? ?? ?? ???? ??? ???????? ??????? ???? ????????? ASME B31.1-2012 ???.
??? ??? ????????? ????? ???? ???? ?? ????? ??????? ?? ?? ??? ksi ?? ?????? ????? ???? ?? ???. ??? ????? ?? ?? ????? ????? ??? ?? ????? ?? ??? ?????? ????? ???? ?? ??? ksi ???? ???? ?? ??? ?????? ?? ?? ?????? ???? ??? ???? ?? ???? ? ?? ??????? ?? ?????? ?????? ????? ????? ???? ?? ???. ???? ????? ????? ????? ???? B7 ?? ?? ??? ??? ?? ?? ?? ???? ?? ??? ??? ????? ?? ????:
| ????? ????? ?? ???? ????? ? ????? | ||||||
| ???? ????? ???? | B5 | B7 ?? 2.5 ???? | B7 2.5 ??? 4 ???? | B7 4 ??? 7 ???? | B7M | |
| ?????? | A193 | |||||
| ??????? ??? ???? ?? ??? ksi ? ??? ?? ??? ???? ???????? ???? ????? ?? ???? ???????? ?? ???? ????? ???? : F=1.8C+32 |
-20 ??? 100 | 20 | 25 | 23 | 18.8 | 20 |
| 200 | 20 | 25 | 23 | 18.8 | 20 | |
| 300 | 20 | 25 | 23 | 18.8 | 20 | |
| 350 | - | - | - | - | - | |
| 400 | 20 | 25 | 23 | 18.8 | 20 | |
| 450 | - | - | - | - | - | |
| 500 | 20 | 25 | 23 | 18.8 | 20 | |
| 600 | 20 | 25 | 23 | 18.8 | 20 | |
| 650 | 20 | 25 | 23 | 18.8 | 20 | |
| 700 | 20 | 25 | 23 | 18.8 | 20 | |
| 750 | 20 | 23.6 | 22.2 | 18.8 | 20 | |
| 800 | 18.5 | 21 | 20 | 18 | 18.5 | |
| 850 | 14.5 | 16.3 | 16.3 | 16.3 | 16.5 | |
| 900 | 10.4 | 12.5 | 12.5 | 12.5 | 12.5 | |
| 950 | 7.6 | 8.5 | 8.5 | 8.5 | 8.5 | |
| 1000 | 5.6 | 4.5 | 4.5 | 4.5 | 4.5 | |
| 1050 | - | - | - | - | - | |
| 1100 | - | - | - | - | - | |
| 1150 | - | - | - | - | - | |
| 1200 | - | - | - | - | - | |
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