DIN 17175 St45.8 Seamless Tubes of Heat-resistant Steels, EN 10216-2, ASTM A106, BS 3602 Part I, NF A 49-215, St45.8, 1.0405, St44, 410, SA106 Grade B, 1020, HFS 430, TU 42-c, Carbon Steel Pipes, Alloy Steel Pipes, DIN 17175 St35.8, DIN 17175 St45.8, DIN 17175 10CrMo910, DIN 17175 13CrMo44, DIN 17175 15Mo3

DIN 17175 Seamless Tubes of Heat-resistant Steels

Standard: DIN 17175
Equivalent Standards: EN 10216-2, ASTM A106, BS 3602 Part I, NF A 49-215, GB 3087

Material: St45.8, 1.0405
Equivalent Materials: St44, 410, SA106 Grade B, 1020, HFS 430, TU 42-c, 20

Chemistry Composition

C, %	Si, %	Mn, %	P, %	S, %
0.21 max	0.10-0.35	0.40-1.20	0.040 max	0.040 max

Mechanical Properties

Tensile Strength , MPa	Yield Strength, MPa	Elongation, %
410-530	255 min	21 min

Outside Diameter & Tolerance

Outside Diameter, mm	Tolerance, %
OD≤120	±0.6, 0.25mm min
OD>120	±0.75

Wall thickness & Tolerance

Outside Diameter , mm	Wall Thickness, mm	Tolerance, %
OD≤130	WT≤2*S(DIN 2448)	+15/-10
	2S(DIN 2448)＜WT≤4S(DIN 2448)	+12.5/-10
	WT>4*S(DIN 2448)	±9
130＜OD≤320	WT≤0.05*OD	+17.5/-12.5
	0.05OD＜WT≤0.11OD	±12.5
	WT>0.11*OD	±10
320＜OD≤660	WT≤0.05*OD	+22.5/-12.5
	0.05OD＜WT≤0.09OD	+15/-12.5
	WT>0.09*OD	+12.5/-10

DIN 17175 applies to seamless tubes including tubes for headers of heat-resistant steels St35.8 (1.0305, TS 5/ISO 2604/II), St45.8 (1.0405, TS 9H/ISO 2604/II), 17Mn4 (1.0481, TS 14/ISO 2604/II), 19Mn5 (1.0482, TS 18/ISO 2604/II), 15Mo3 (1.5415, TS 26/ISO 2604/II), 13CrMo44 (1.7335, TS 32/ISO 2604/II), 10CrMo910 (1.7380, TS 34/ISO 2604/II), 14MoV63 (1.7715, TS 33/ISO 2604/II), 12CrMo195 (1.7362, TS 37/ISO 2604/II), X12CrMo91 (1.7386, TS 38/ISO 2604/II), X20CrMoV121 (1.4922, TS 40/ISO 2604/II), which are used in the construction of boilers, pipe-lines, pressure vessels and equipment for service up to 600 °C and at simultaneous high pressures, where the total stress and relevant scaling conditions can raise or lower the temperature limit.

Manufacture: tubes to DIN 17175 shall be manufactured by hot or cold rolling, hot pressing, hot or cold drawing.
Heat Treatment: the tubes shall be supplied suitably heat treated over their entire length. All types of heat treatments are normalizing, subcritical annealing, hardening and tempering with continous cooling from the hardening temperature and subsequent tempering, hardening and tempering with isothermal transformation.
Inspection & Test: chemistry composition analysis, tension test, flattening test, flaring test, NDT, surface inspection and dimension check.

Length: 5800mm; 6000mm; 6096mm; 7315mm; 11800mm; 12000mm; and so on.
Max developed length: 30 meters, also U bending, finning, studded process can be provided.
Option: shot blasting on the outside surface to remove mill scale, make the surface matte colour; surface polishing as preparation work done for further processing, for instance finning.

Download DIN 17175 St45.8 Product Manual

Keyword: DIN 17175, EN 10216-2, High Pressure Steel Pipe, Boiler Steel Pipe

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