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企业认证 |
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| 金属国际有限公司 |
| 认证机构﹕赛立信(HK) |
| 认证日期﹕2011-03-25 |
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| 型号︰ | - |
| 品牌︰ | - |
| 原产地︰ | - |
| 单价︰ | - |
| 最少订量︰ | - |
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钻铤的标准尺寸、内径及螺纹
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钻铤编号
|
外径D
|
内径d
|
长度L mm
|
台肩倒角
直径DF mm
|
弯曲强度比
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mm
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in
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mm
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in
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NC23-31
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79.4
|
3 1/8
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31.8
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1 1/4
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9150
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76.2
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2.57:1
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NC26-35
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88.9
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3 1/2
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38.1
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1 1/2
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9150
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82.9
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2.42:1
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NC31-41
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104.8
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4 1/8
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50.8
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2
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9150或9450
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100.4
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2.43:1
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NC35-47
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120.7
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4 3/4
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50.8
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2
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9150或9450
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114.7
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2.58:1
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NC38-50
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127.0
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5
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57.2
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2 1/4
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9150或9450
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121.0
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2.38:1
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NC44-60
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152.4
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6
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57.2
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2 1/4
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9150或9450
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144.5
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2.49:1
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NC44-60
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152.4
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6
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71.4
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2 13/16
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9150或9450
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144.5
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2.84:1
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NC44-62
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158.8
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6 1/4
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57.2
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2 1/4
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9150或9450
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149.2
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2.91:1
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NC46-62
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158.8
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6 1/4
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71.4
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2 13/16
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9150或9450
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150.0
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2.63:1
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NC46-65
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165.1
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6 1/2
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57.2
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2 1/4
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9150或9450
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154.8
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2.76:1
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NC46-65
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165.1
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6 1/2
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71.4
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2 13/16
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9150或9450
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154.8
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3.05:1
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NC46-67
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171.4
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6 3/4
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57.2
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2 1/4
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9150或9450
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159.5
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3.18:1
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NC50-67
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171.4
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6 3/4
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71.4
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2 13/16
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9150或9450
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159.5
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2.37:1
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NC50-70
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177.8
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7
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57.2
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2 1/4
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9150或9450
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164.7
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2.54:1
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NC50-70
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177.8
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7
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71.4
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2 13/16
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9150或9450
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164.7
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2.73:1
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NC50-72
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184.2
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7 1/4
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71.4
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2 13/16
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9150或9450
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169.5
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3.12:1
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NC56-77
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196.8
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7 3/4
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71.4
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2 13/16
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9150或9450
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185.3
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2.70:1
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NC56-80
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203.2
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8
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71.4
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2 13/16
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9150或9450
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190.1
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3.02:1
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6 5/8REG
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209.6
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8 1/4
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71.4
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2 13/16
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9150或9450
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195.7
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2.93:1
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NC61-90
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228.6
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9
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71.4
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2 13/16
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9150或9450
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212.7
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3.17:1
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7 5/8REG
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241.3
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9 1/2
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76.2
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3
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9150或9450
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223.8
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2.81:1
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NC70-97
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247.6
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9 3/4
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76.2
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3
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9150或9450
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232.6
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2.57:1
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NC70-100
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254.0
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10
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76.2
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3
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9150或9450
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237.3
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2.81:1
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8 5/8REG
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279.4
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11
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76.2
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3
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9150或9450
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266.7
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2.84:1
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钻铤的力学性能
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外径范围
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屈服强度
σ0.2
MPa
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抗拉强度
σb
MPa
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伸长率
δ4
%
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布氏硬度HB
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夏比冲击功
Ak
J
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mm
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in
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79.4~171.4
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3 1/8~6 3/4
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≥758
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≥965
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≥13
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≥285
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≥54
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177.8~279.4
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7~11
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≥689
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≥930
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钻铤的主要公差尺寸
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外径范围
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外径D
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内径d
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长度L
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台肩倒角直径DF
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mm
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in
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≤88.9
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≤3 1/2
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+1.2
0
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+1.6
0
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±152.4
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±0.4
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＞88.9~114.3
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＞3 1/2~4 1/2
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+1.6
0
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＞114.3~139.7
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＞4 1/2~5 1/2
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+2.0
0
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＞139.7~165.1
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＞5 1/2~6 1/2
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+3.2
0
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＞165.1~215.9
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＞6 1/2~8 1/2
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+4.0
0
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＞215.9~241.3
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＞8 1/2~9 1/2
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+4.8
0
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＞241.3
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＞9 1/2
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+6.4
0
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钻铤螺纹连接部位应力分散槽
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螺纹类型
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内螺纹台肩面至最后一牙刻痕
长度Lx
±1.59mm
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内螺纹圆柱段
直径Dcb
+0.40－0mm
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内螺纹圆柱段后的锥孔锥度
±20.83mm/m
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外螺纹槽
直径DRC
+0－0.79mm
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可替代内螺纹台肩面至应力分散槽长度
LRG+0－3.18mm
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NC35
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82.6
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82.15
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166.67
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82.15
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85.73
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NC38
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88.9
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88.11
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166.67
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89.10
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92.08
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NC40
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101.6
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92.87
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166.67
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95.81
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104.78
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NC44
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101.6
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101.60
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166.67
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106.36
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104.78
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NC46
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101.6
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106.76
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166.67
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109.93
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104.78
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NC50
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101.6
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117.48
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166.67
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120.45
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104.78
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NC56
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114.3
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121.84
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250.00
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134.04
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117.48
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NC61
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127.0
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132.95
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250.00
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148.31
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130.18
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NC70
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139.7
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152.00
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250.00
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170.54
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142.88
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NC77
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152.4
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166.29
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250.00
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188.01
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155.58
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6 5/8REG
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114.3
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134.14
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166.67
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137.59
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117.48
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7 5/8REG
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120.7
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148.83
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250.00
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161.26
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123.83
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8 5/8REG
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123.8
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172.24
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250.00
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185.45
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127.00
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钻铤吊卡槽、卡瓦槽尺寸
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钻铤外径
|
吊卡槽深度
±0.2
|
R1c
|
角度
αb
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卡瓦槽深度
±0.4
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角度
βb
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101.6~117.5
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5.6
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3.2±0.4
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4°
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4.8
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3.5°
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120.6~142.9
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6.4
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3.2±0.4
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5°
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4.8
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3.5°
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146.0~168.3
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7.9
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3.2±0.4
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6°
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6.4
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5°
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171.4~219.1
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9.5
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4.8±0.8
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7.5°
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6.4
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5°
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≥222.2
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11.1
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6.4±0.8
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9°
|
6.4
|
5°
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| 产品规格︰ | 钻铤采用AISI 4145H铬钼钢制造，执行API 规范及SY/T5144标准，可对螺纹进行冷滚压、镀铜或磷化处理，可加工双台肩螺纹及其它规格的特殊螺纹，可生产外径最大14英寸的钻铤。 |
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