1. Multi lead rifled seamless steel tube for high-pressure boiler
2. Standard specification&steel grade:SA192,SA210 A1/C,SA209 T1,SA213 T2,T5,T9,T11,T12,T22,T23,T91,T92,and equivalent standard&steel grade of boiler tubes.
3. Size: OD:28.6mm-82.6mm W.T:5mm-12.7mm No. of ribs: 4-12
4. Manufacturing method: cold-drawn
5. Delivery condition: Normalized/normalized+tempered.
6. Marking on each tube:Standard&steel grade/OD*W.T*L/Type
7. Oil-coating,varnish,end-protection to be confirmed if not specified by standard specification.
8. Application: Multi lead rifled seamless tube of carbon steel&alloy steel are widely used in high-pressure boilers for power generation.