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Stainless steel seamless tube and pipe
Seamless austenitic, duplex and super duplex tube and pipe for heat exchangers, condensers and process pipelines, to ASTM A213, A312, A789 and A790. Made to order and delivered to site anywhere in South Africa.
Overview
Precision seamless tube for heat exchangers and seamless pipe for pipelines, produced by CSM Group at around 6,000 tons a year. Grades run from standard 304 and 316L through 904L to duplex 2205 and super duplex 2507 for chloride and high-strength service.
Quality starts with the billet. Pipe billets come mainly from established special steel mills such as Baosteel and Yongxing, and billets from Outokumpu or Sandvik can be specified where your project calls for them.
Typical applications
- Heat exchanger, condenser and feedwater heater tube
- Chemical and petrochemical process pipelines
- Instrument and hydraulic tubing
- Offshore, marine and chloride service (duplex grades)

Specification at a glance
| Key standards | ASTM/ASME A213, A312, A789, A790, EN 10216-5 |
| Grades | 304/L/H, 316/L/Ti, 321, 347, 904L, 2205, 2507 and more |
| Seamless tube | OD 3–168 mm, wall 0.5–28 mm |
| Seamless pipe | 1/8″ to 20″, Sch 10 to Sch 160 |
| Order quantity | No minimum or maximum |
Technical data
| ASTM/ASME | A213/SA213, A312/SA312, A269, A999, A1016, A789, A790 |
| DIN | 2462, 2463, 17457, 17458 |
| EN | 10216-5, 10217-7 |
| JIS | G3446, G3447, G3448, G3459, G3463 |
| Austenitic grades | 304/304L/304H, 310/310S, 316/316L/316Ti, 317/317L, 321/321H, 347/347H, 904L |
| Duplex grades | S31803, S32205, S32750 |
| Ferritic and martensitic | 410, 410S, 446 |
| Seamless tube sizes | Outside diameter 3 mm to 168 mm, wall thickness 0.5 mm to 28 mm |
| Seamless pipe sizes | Outside diameter 1/8″ to 20″, wall thickness Sch 10 to Sch 160 |
Made to order
Manufactured by CSM Group to your grade, standard and dimensions. We do not hold stock, so you get exactly what the job specifies.
Lead time
Typically around a month at the mill depending on quantity, plus freight. Every quote states a lead time you can use in your tender.
Delivered to site
Shipped by sea or air and delivered to your workshop or site anywhere in South Africa.
Need a price for stainless or duplex tube?
Send the grade, standard, sizes and quantities and we will come back with a price and lead time.