DIN 17121 Seamless Circular Steel Tubes for Structural Steel Work

DIN 17121 Seamless Circular Steel Tubes for Structural Steel Work

DIN 17121 Seamless Circular Steel Tubes for Structural Steel Work - technical delivery conditions

1. Field of application
1.1 This standard applies to seamless circular tubes made from the steels listed in tables 1 and 2 These tubes are used in structural steelwork (as in building and civil engineering, tublar steel construction, bridge and crane construction, etc.).
1.2 This standard does not apply to
a) - welded circular unalloyed steel tubes not subject to special requirements (seeDIN 1629, at present at the stage of draft); 
- welded circular unalloyed steel tubes subject to special requirements (seeDIN 1626, at present at the stage of draft); 
- high-performance welded circular unalloyed steel tubes (see DIN 1630, at present at the stage of draft); 
- welded circular fine grain steel tubes for structural steelwork (see DIN 17124, at present at the stage of draft); 
b) steel tubes for working scaffolds (see DIN EN 39)

2. Steel Grade Symbols
RSt37-2
St37-3
St44-2
St44-3
St52-3

3. The Chemical Composition and Mechanical Properties in details, please check DIN 17121.
4. The tolerance on dimension in details, please check DIN 17121.

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