We mainly supply ASTM A453 Gr. 660A, 660B, 660C, 660D stud bolts and nuts.
我們的產品已廣泛應用於石油和天然氣工程，石油化工，電站，海洋工程，核工程，重型機械，摩天大樓等。
| 年級 | 類 | 機械性能 | ||||||||
| 拉伸 | Yield Strength, | 伸長 | 減少 | Brinell Hardness | Approximate Rockwell Hardness, | |||||
| 強度， | min, 0.2 % | in 4D, | of Area, | Number | B and C | |||||
| 分 | offset, | min, % | min, % | |||||||
| Ksi | MPa | Ksi | MPa | 分 | 最大 | |||||
| ASTM A453 | A,B,C | 130 | 895 | 85 | 585 | 15 | 18 | 248-341 | 24 HRC | 37 HRC |
| 660 | d | 105 | 725 | 248-321 | 35 HRC | |||||
| ASTM A453 | 一個 | 100 | 690 | 70A | 485 | 18 | 35 | 217-277 | 95 HRB | 29 HRC |
| 651 | 60B | 415 | ||||||||
| 乙 | 95 | 655 | 60A | 415 | 18 | 35 | 212-269 | 93HRB | 28 HRCC | |
| 50B | 345 | |||||||||
| ASTM A453 | 一個 | 130 | 895 | 85 | 585 | 15 | 18 | 248-231 | 24 HRC | 35 HRCC |
| 662 | 乙 | 125 | 860 | 80 | 550 | |||||
| ASTM A453 | 一個 | 170 | 1170 | 120 | 830 | 12 | 15 | 311-388 | 32 HRC | 41 HRC |
| 665 | 乙 | 155 | 1070 | |||||||
| ASTM A453 | A,B | 130 | 895 | 85 | 858 | 15 | 18 | 248-341 | 24 HRC | 37 HRC |
| 668 | ||||||||||
A. Material sizes 3 in. [76 mm] and under in diameter.
B. Material sizes over 3 in. [76 mm] in diameter.
C.Conversion numbers taken from Specification A193/A193M, Table number 2 (austenitic steels); others by interpolation
