| HS Directory Tree | Description |
|---|---|
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Chapter 73; Articles of iron or steel |
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Tubes, pipes and hollow profiles, seamless, of iron(other than cast iron)or steel; |
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Alloy steel seamless steel tubes for pressure and high temperature (≥ 620MPa, tensile strength, yield strength ≥ 440MPa) (chemical composition diameter ≥ 127mm, (wt%) 0.07 ≤ C ≤ 0.13, 8.5 ≤ Cr ≤ 9.5, 0.3 ≤ Mo ≤ 0.6, 1.5 ≤ W ≤ 2, cold drawn or cold rolled,; 高温承压用合金钢无缝钢管(抗拉强度≥620MPa、屈服强度≥440MPa); |
| 13-digits CIQ code | Commodity Name |
|---|---|
7304519001101 |
高温承压用合金钢无缝钢管(抗拉强度≥620MPa、屈服强度≥440MPa)(外径在127mm以上(含127mm),化学成分(wt%)中碳(C)的含量≥0.07且≤0.13、铬(Cr)的含量≥8.5且≤9.5、钼(Mo)的含量≥0.3且≤0.6、钨(W)的含量≥1.5且≤2.0、抗拉强度≥620Mpa、屈服强度≥440Mpa)(无缝钢管压力管道) |
7304519001102 |
高温承压用合金钢无缝钢管(抗拉强度≥620MPa、屈服强度≥440MPa)(外径在127mm以上(含127mm),化学成分(wt%)中碳(C)的含量≥0.07且≤0.13、铬(Cr)的含量≥8.5且≤9.5、钼(Mo)的含量≥0.3且≤0.6、钨(W)的含量≥1.5且≤2.0、抗拉强度≥620Mpa、屈服强度≥440Mpa)(无缝钢管) |
| 8-digits HS code | Commodity Example of Chinese Name | Specification |
|---|---|---|
73045190. |
轴承外圈用冷拔合金钢管 | 无缝52.65*4.15 |
73045190. |
冷拔合金无缝钢管 | 外径47.70mmX壁WT3.25mmX4200 |



















