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DIN 17174-85 SEAMLESS CIRCULAR TUBES

DIN 17174-85 SEAMLESS CIRCULAR TUBES

This standard applies to welded circular tubes made carbon and alloy steels with low temperature toughness, as listed in table1, for low temperature applications. These tubes are predominantly used in the construction of chemical plant, vessels, pipework and for general mechanical engineering purposes.

Description

steel grade% by mass
symbolMaterial number 

C

max

Si

max

Mn

P

max

S

max

Al

min

Mo

max

Nb

max

Ni

V

max

TTSt35N1.03560.170.35min 0.400.0300.0250.020-

-

--
TTSt35V
11MnNi531.62120.140.500.70 to 1.500.0300.0250.020-0.050.30 to 0.850.05
13MnNi631.62170.180.500.85 to 1.650.0300.0250.020-0.053.25 to 3.750.05
10NI141.56370.150.350.30 to 0.800.0250.020---3.25 to 3.750.05
12NI191.56800.150.350.30 to 0.800.0250.020---4.50 to 5.300.05
X8Ni91.56620.100.35

0.30 to 0.80

0.0250.020-0.10-8.00 to 10.000.05


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