Name:Sulfur- resistance,CO2- resistance, Nickel based alloyoil pipe
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Casing pipe、oil pipe are the necessary tubular product.Except the API standard product,we also fucos on developing the special materials oil casing .The materials include low-alloy steel, 13Cr martensite stainless steel, upscale ultratek; and the oil pipe product have gradually formed deep mine series, collapse-resistance series, sulfur- resistance serials,economical CO2- resistance serials and the combination of serials.
Name | API 5CT | H2S | economical CO2- resistance | Economical | 13Cr | ultratek | collapse-resistance in sulfurous environment serials | collapse-resistance | Special thread serials | Straight-line | |
Oil pipe | 2 3/8" | √ | √ | √ | √ | √ | √ |
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| √ |
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2 7/8" | √ | √ | √ | √ | √ | √ |
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| √ | √ | |
3 1/2" | √ | √ | √ | √ | √ | √ |
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| √ | √ | |
4" | √ | √ | √ | √ | √ | √ |
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| √ | √ | |
4 1/2" | √ | √ | √ | √ | √ | √ |
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| √ | √ | |
Casing | 4 1/8" | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ |
4 1/2" | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | |
5" | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | |
5 1/2" | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | |
6 5/8" | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | |
7" | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ | |
7 5/8" | √ | √ | √ | √ |
| √ | √ | √ | √ | √ | |
8 5/8" | √ | √ | √ | √ |
| √ | √ | √ | √ | √ | |
9 5/8" | √ | √ | √ | √ |
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| √ | √ | √ | √ | |
10 3/4" | √ | √ | √ | √ |
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11 3/4" | √ |
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13 3/8" | √ |
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16" | √ |
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18 5/8" | √ |
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20" | √ |
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