Seamless
Petroleum Cracking Tubes
Seamless petroleum cracking tubes to GB 9948-1988 and ASTM A213 for refinery furnace, catalytic cracker, and thermal cracker service at sustained high temperatures.
Petroleum cracking tubes
OVERVIEW
Engineered for refinery furnace duty.
Global Seamless manufactures petroleum cracking tubes to GB 9948-1988 and ASTM A213 for refinery process heaters, catalytic crackers, thermal crackers, and coker heaters. These tubes operate at sustained temperatures up to 600°C under hydrogen-rich, carburising, and sulphidising environments.
Our petroleum cracking tube program covers atmospheric and vacuum distillation heaters, FCC riser tubes, delayed coker heaters, and visbreaker furnaces — with controlled microstructure for creep and oxidation resistance.
✓ GB 9948-1988 and ASTM A213 specifications
✓ Grades: 15CrMo, 12Cr1MoV, T5, T9, T91
✓ High-temperature creep and oxidation resistance
✓ Controlled microstructure heat treatment
✓ 100% NDT with full material traceability
✓ Grades: 15CrMo, 12Cr1MoV, T5, T9, T91
✓ High-temperature creep and oxidation resistance
✓ Controlled microstructure heat treatment
✓ 100% NDT with full material traceability
Petroleum cracking furnace tube
DIMENSIONAL SPECIFICATIONS
Available size range.
Cold Drawn Seamless (CDS)
| Outside Diameter (OD) | Wall Thickness (WT) | Length | Tolerance |
|---|---|---|---|
| 25.00 – 60.30 mm | 3.00 – 8.00 mm | up to 12.8 m | GB 9948 |
| 60.30 – 114.30 mm | 4.00 – 12.00 mm | up to 12.8 m | GB 9948 |
| 114.30 – 168.30 mm | 5.00 – 15.00 mm | up to 12.8 m | GB 9948 |
APPLICATIONS & INDUSTRIES
Where these tubes get used.
MATERIAL GRADES
GB 9948 · chrome-moly · and T91.
GB 9948
15CrMo · 12Cr1MoV
Chinese standard chrome-moly grades for petroleum refinery furnace service.
ASTM GRADES
T5 · T9
5Cr and 9Cr grades for high-temperature sulfidation and oxidation resistance.
TECHNICAL ARTICLES
Latest insights on cracking tubes.
ARTICLE
GB 9948 vs ASTM A213
Chinese and international standards for petroleum cracking tubes.
ARTICLE
Refinery Furnace Grades
Matching tube grade to furnace temperature and process chemistry.
ARTICLE
Creep and Oxidation
How metallurgy and heat treatment affect tube life in cracker service.
RELATED PRODUCTS
Often paired with.
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