提升短节
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提升短节
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提升短节
提升短节采用AISI4145H铬钼钢制造,执行API规范,可对螺纹进行冷滚压、镀铜或磷化处理。
● 力学性能
外螺纹接头外径尺寸D/mm(in) |
抗拉强度 Mpa Tensilestrength |
屈服强度 σr 0.2/Mpa Yieldstrength |
伸长率% Elongation |
夏比(V型)冲击功J Impact |
硬度HB Hardness (Brinell) |
79.4-159.5(31/8-63/4) |
≥970 |
≥760 |
≥13 |
≥54 |
≥285 |
177.8-260.7(7-11) |
≥930 |
≥690 |
≥13 |
≥54 |
≥277 |
● 提升短节主要尺寸规格
序号 |
公称尺寸 Basic size D±0.08(1/32) mm(in) |
内径 d/mm |
外螺纹接头Pin connection |
提升端Lifting end |
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螺纹类型 Type |
外径D ±0.08(1/32) mm(in) |
倒角 直径 D./mm |
大钳咬合长度 LPB/mm |
外径DB ±0.08mm |
吊卡台肩根部 圆角半径 RSE±0.04mm |
大钳咬合长度 LB/mm |
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1 |
73.0(27/8) |
31.8 |
NC23 |
79.4(31/8) |
76.2 |
250.0 |
111.1 |
4.8 |
100.0 |
2 |
44.5 |
NC26 (23/8)※ |
88.9(31/2) |
82.9 |
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3 |
88.9(31/2) |
54.0 |
NC31(21/8)※ |
104.8(41/8) |
100.4 |
127.0 |
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4 |
50.8 |
NC35 |
120.7(43/4) |
114.7 |
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5 |
68.3 |
NC38(31/21F)※ |
127.0(5) |
121.0 |
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6 |
127.0(5) |
71.4 |
NC44 |
152.4(6) |
144.5 |
168.3 |
6.4 |
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7 |
158.8(61/4) |
149.2 |
|||||||
8 |
82.6
95.3 |
NC46(41F) |
158.8(61/4) |
150.0 |
|||||
9 |
165.1(61/2) |
154.8 |
|||||||
10 |
171.5(63/4) |
159.5 |
|||||||
11 |
NC50(41/21F) |
177.8(7) |
164.7 |
||||||
12 |
184.2(71/4) |
169.5 |
|||||||
13 |
NC56 |
196.8(73/4) |
185.3 |
300.0 |
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14 |
203.2(8) |
190.1 |
|||||||
15 |
65/8REG※ |
209.6(81/4) |
195.7 |
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16 |
NC61 |
228.6(9) |
212.7 |
||||||
17 |
75/8REG※ |
241.3(91/2) |
223.8 |
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18 |
NC70 |
247.7(93/4) |
232.6 |
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19 |
254.0(10) |
237.3 |
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20 |
NC77 |
279.4(11) |
260.7 |
注:常用螺纹接头。
3aM.
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