金剛石岩芯鑽探用無縫鋼管(YB/T5052)是一種工業用鋼管,適用於製造用於金剛石鑽探用鑽桿、岩心管、套管。
鑽孔公稱系列 | 岩芯外管 | 岩芯內管 | 套管 | 鑽桿 | 備註 | ||||||||
D | d | S | D | d | S | D | d | S | D | d | S | ||
28 | 27 | 22.5 | 2.25 | 20.5 | 18 | 1.25 | 25 | 17 | 4 | ||||
36 | 35 | 29 | 3 | 26.5 | 23 | 1.75 | 45 | 38 | 3.5 | 33 | 23 | 5 | |
46 | 45 | 38 | 3.5 | 35 | 31 | 2 | 58 | 49 | 4.5 | 43 | 3l | 6 | |
59 | 58 | 51 | 3.5 | 47.5 | 43.5 | 2 | 73 | 63 | 5 | 54 | 42 | 6 | |
75 | 73 | 65.5 | 3.75 | 62 | 56.5 | 2.75 | 89 | 8l 78.5 | 4 5.25 | 67 | 55 | 6 | |
9l | 89 | 8l | 4 | 77 | 70 | 3.5 | 108 | 99.5 97.5 | 4.25 5.25 | 67 | 55 | 6 | |
46 | 45 | 36 | 4.5 | 31 | 27 | 2 | 58 | 49 | 4.5 | 43.5 | 34 | 4.75 | |
59 | 58 | 49 | 4.5 | 43 | 38 | 2.5 | 73 | 63 | 5 | 55.5 | 46 | 4.75 | 繩索取芯 |
75 | 73 | 63 | 5 | 56 | 51 | 2.5 | 89 | 81 78.5 | 4 5.25 | 71 | 6l | 5 |
外徑D | 壁厚S | ||
尺寸/mm | 答應偏差 | 尺寸/mm | 答應偏差 |
>30 | ±0.30mm | <3 | +l% -10 |
30~50 | ±O.40mm | ||
≥3 | +12% -10 | ||
>50 | ±l% |
內徑d | 壁厚S | ||
尺寸/mm | 答應偏差 | 尺寸/mm | 答應偏差 |
>40 | ±0.30mm | 所有尺寸 | ±10% |
40~50 | ±O.40mm | ||
>50 | ±O.8% |
鋼級 | 牌號 | 化學成分(質量分數)(%) | |||||||
C | si | Mn | S | P | M0 | V | B | ||
≤ | |||||||||
DZ40 | 45MnB | 0.42~0.49 | O.20~0.40 | 1.10~1.40 | 0.040 | 0.040 | 0.001~0.0035 | ||
50Mn | 0.48~0.56 | 0.17~O.37 | 0.70~1.00 | ||||||
DZ50 | 40Mn2 | O.37~O.44 | O.20~O.40 | 1.40~1.80 | |||||
40Mn2Si | O.37~0.45 | O.40~0.7O | 1.30~1.80 | ||||||
DZ55 | 4Mn2M0 | O.38~0.45 | O.20~O.35 | 1.50~1.80 | 0.20~O.30 | ||||
40MnVB | 0.37~0.44 | O.20~0.40 | 1.10~1.40 | 0.05~0.10 | 0.00l~O.004 | ||||
DZ60 | 45MnMoB | 0.41~O.49 | O.17~O.37 | O.90~1.20 | 0.20~O.30 | O.00l~O.005 | |||
DZ65 | 27MnMoOVB | 0.22~0.32 | O.17~0.37 | 1.20~1.60 | O.030~0.50 | O.08~O.15 | 0.00l~0. 005 |
鋼 級 | 屈服點ós/MPa | 抗拉強度ób/MPa | 伸長率δ5(%) |
≥ | |||
DZ40 | 390 | 635 | 14 |
DZ50 | 490 | 685 | 12 |
DZ55 | 540 | 735 | 12 |
DZ60 | 590 | 765 | 12 |
DZ65 | 635 | 785 | 12 |
DZ75 | 735 | 835 | 10 |