P91 Pipe
P91 pipe seamless circular tubes of alloy steels used in chemical plant construction, pressure vessels,piping system and general mechanical and engineering purposes. Main Steel grades are Din 1629 the specification applies to steel pipes seamless and pipes are suitable for gas fusion welding,arc welding, flash butt welding, electric pressure welding and gas pressure welding. Seamless steel pipe, welded steel pipe,All galvanized steel pipes are available.
Standard | DIN1629 |
Material | ST35.8 |
ST37 | |
ST44 | |
ST52 | |
Outside Diameter | 33.4mm-813mm |
1"-32" | |
Thickness | 3mm-100mm |
SCH40-XXS | |
Length | 6M 12M or Random |
Surface Treatment | bare, brightness, Varnish, coating |
Package | Bundle or loose |
Wood box | |
Marking: acording to customer's requirement. |
Chemical Composition
Steel Grade | Chemical Composition | ||||
C | Si | Mn | P | S | |
ST37 | 0.17 | 0.035 | 0.035 | ||
ST44 | 0.21 | 0.035 | 0.035 | ||
ST52 | 0.22 | 0.55 | 1.6 | 0.035 | 0.035 |
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