| Seamless tube Hot rolled cold drawn seamless tubes:
For mechanical and hydraulic engineering and general construction.
Thick seamless tube
• Grades: ST 37.0, ST 52.0 and S355J2H with impact tests
• All diameters up to 660 mm
• All thicknesses up to 100 mm (including intermediate thicknesses)
• Long lengths, cut to length, all coatings.
• Drilled bar for sizes not available in thick tube
• ST 35.8.I / P235 GH TC1 and ST 35.8.III (equivalent to Tu 37 C and NFA 49213)
• alloy steels to DIN 15: Mo3, 13 CrMo44, and 10 CrMo910, and to ASTM A 335: P11, P22 and P5
• All unions, bar, sheet and strip in the same grades.
For stainless steel (321 and 316 Ti) up to Ø 406.4 mm.
New: 316 L stainless steel 18" and 20" sch(*1) std.
Product certificate on request.
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The current international standard specifies the technical delivery conditions for corrosion-resistant seamless tubes for
use as casing, tubing and coupling stock.
The current international standard applies to the following four tube groups
Group 1, comprising stainless alloys with a martensitic or martensitic/ferritic structure;
Group 2, comprising stainless steels with a ferritic-austenitic structure, such as duplex and super duplex stainless steels;
Group 3, comprising stainless alloys with an austenitic (iron based) structure;
Group 4 , comprising nickel based stainless alloys with an austenitic (nickel based) structure.
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Seamless tube 
