DIN 1629 applications the overheated boilers, as minimum thickness ferrite and seamless steel pipes, and as heat exchangers via austenitic pipes.
EN 10216 Part 1: non-alloy pipes with specified properties at room temperature
EN 10216 Part 2: non-alloy pipes with specified properties at higher temperatures
EN 10216 Part 3: alloy pipes made from fine-grained steel for any temperature
This part of EN10216 may also be applied for tubes of non-circular cross section; necessary modification should be agreed a time of enquiry and order.
EN 10216-1, QUALITY P235TR2 (FORMERLY DIN 1629, ST.37.0)
P = Pressure
235 = minimum yield strength in N/mm2
TR2 = quality with specified properties relating to aluminum content, impact values and inspection and test requirements. (In contrast to TR1, for which this is not specified).
EN 10216-2, QUALITY P235 GH (FORMERLY DIN 17175, ST.35.8 CL. 1, BOILER PIPE)
P = Pressure
235 = minimum yield strength in N/mm2
GH = tested properties at higher temperatures
EN 10216-3, QUALITY P355 N (MORE OR LESS EQUIVALENT TO DIN 1629, ST.52.0)
P = Pressure
355 = minimum yield strength in N/mm2
N = normalized*
* Normalized is defined as: normalized (warm) rolled or standard annealing (at a min temperature of 930°C). This applies to allqualities designated by the letter ‘N’ in the new Euro Standards.
PIPES FOR PRESSURE APPLICATIONS OLD STANDARD
Execution | Norm | Steel grade |
Welded | DIN 1626 | St.37.0 |
Welded | DIN 1626 | St.52.2 |
Seamless | DIN 1629 | St.37.0 |
Seamless | DIN 1629 | St.52.2 |
Seamless | DIN 17175 | St.35.8/1 |
Seamless | ASTM A106* | Grade B |
Seamless | ASTM A333* | Grade 6 |
Execution | Norm | Steel grade |
Welded | DIN EN 10217-1 | P235TR2 |
Welded | DIN EN 10217-3 | P355N |
Seamless | DIN EN 10216-1 | P235TR2 |
Seamless | DIN EN 10216-3 | P355N |
Seamless | DIN EN 10216-2 | P235GH |
Seamless | DIN EN 10216-2 | P265GH |
Seamless | DIN EN 10216-4 | P265NL |
* ASTM standards will remain valid and will not be replaced by Euronorms in the near future
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