DIN 17175

Introduction of  Seamless Steel Pipe

China Din17175 Boiler Tube Manufacturer and Supplier

DIN 17175 specifies the technical requirements for seamless heat-resistant steel pipes. Suitable for boilers, high-pressure pipelines and high-temperature equipment.

It covers a variety of heat-resistant steel grades (such as St 35.8, 15Mo3) and specifies chemical composition, mechanical properties, dimensional to-term high temperature (up to 600°C) stress.

This standard ensures pipes are reliable and safe under harsh conditions. It matches international standards, like EN 10216.

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Why Choose UNIASEN DIN17175 Tube

  • The DIN 17175 seamless steel pipes we produce are designed for high temperature and high pressure applications. These pipes are ideal for steam boilers, pressure vessels and instruments. They can be used at temperatures up to 600°C. 
  • Our DIN 17175 seamless steel pipes have detailed specifications, including dimensions, production procedures, steel grades, surface coatings, end types, joint methods and processing services. 
  • We offer various grades of DIN 17175 seamless steel pipes, including ST35.8, ST45.8 and 10CrMo910. We customize them to your requirements, such as coatings and end types. 

DIN17175 Boiler Tube Specifications

Standard DIN17175
Usage Steel possessing good mechanical properties even under long-time stressing at high temperature, up to 600℃, shall be regarded as being heat-resistant at high temperatures, for the purpose of this standard
Out Diameter 21mm-914mm
Wall Thickness SCH10, SCH20, SCH30, SCH40, SCH60, SCH80, SCH160, SCHXXS
Length 3M-12M or Customized
Pipe End Plain End, Bevel End, Thread…
Pipe Surface Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting.
Manufacturing The steel pipe to which this standard relates may be produced by hot rolling, cold rolling, hot pressing, hot drawing or cold drawing.
The tube steel can be smelted in a flat furnace or an electric furnace according to the oxygen blowing method, and all steels should be cast in a static manner.
Grade St35.8, St45.8, 15Mo3 , 13CrMo44, 10CrMo910

Dimension

Outside
Diameter		 Tube Thickness （mm）
mm 1.6 1.8 2.0 2.3 2.6 2.9 3.2 3.6 4.0 4.5 5.0 5.6 6.3 7.1 8.0 8.8 10.0 11.0 12.5 14.2
10.2 ●
13.5 ●
16 ●
17.2 ●
19 ●
20 ●
21.3 ●
25 ●
25.4 ●
26.9 ●
30 ●
31.8 ●
33.7 ●
38 ●
42.4 ●
44.5 ●
48.3 ●
51 ●
54 ●
57 ●
60.3 ●
63.5 ●
70 ●
73 ●
76.1 ●
82.5 ●
88.9 ●
101.6 ●
108 ●
114.3 ●
127 ●
133 ●
139.7 ●
152.4 ●
159 ●
168.3 ●
177.8 ●
193.7 ●
219.1 ●
244.5 ●
273 ●
323.9 ●
355.6 ●
406.4 ●
457 ●
508 ●
559 ●
610 ●
660 ●

Chemical Requirement

Steel Grade Chemical composition in weight %
C Si Mn P S Cr Mo Ni V
Code number Material
numbers		 max. max.
St 35.8 1.0305 ≤0.17 0.10 to 0.35 0.40 to 0.80 0.040 0.040 – – –
St 45.8 1.0405 ≤0.21 0.10 to 0.35 0.40 to 1.20 0.040 0.040 – – –
17 Mn 4 1.0481 0.14 to 0.20 0.20 to 0.40 0.90 to 1.20 0.040 0.040 ≤0.30 – –
19 Mn 5 1.0482 0.17 to 0.22 0.30 to 0.60 1.00 to 1.30 0.040 0.040 ≤0.30 – –
15 Mo 3 1.5415 0.12 to 0.20 0.10 to 0.35 0.40 to 0.80 0.035 0.035 – 0.25 to 0.35 –
13 CrMp 4 4 1.7335 0.10 to 0.18 0.10 to 0.35 0.40 to 0.70 0.035 0.035 0.70 to 1.10 0.45 to 0.65 –
10 CrMo9 10 1.7380 0.08 to 0.15 ≤0.50 0.40 to 0.70 0.035 0.035 2.00 to 2.50 0.90 to 1.20 –
14 MoV 6 3 1.7715 0.10 to 0.18 0.10 to 0.35 0.40 to 0.70 0.035 0.035 0.30 to 0.60 0.50 to 0.70 – 0.22 to 0.32
X 20 CrMoV 12 1 1.4922 0.17 to 0.23 ≤0.50 ≤1.00 0.030 0.030 10.00 to 12.50 0.80 to 1.20 0.30 to 0.80 0.25 to 0.35

Mechanical Requirement

Our DIN 17175 seamless steel pipes meet all mechanical requirements specified in the standard. These include tensile strength, yield strength, elongation and impact value, etc.

Steel Grade Tensile
Strength		 Yield point
for wall thickness in mm		 Elongation at
fracture		 Impact Strength
≤16 ＞16≤40 ＞40≤60 Long Transv. transverse
Code number Material
numbers		 N/mm2 N/mm2
minimum		 %
minimum		 J
minimum
St 35.8 1.0305 360 to 480 235 225 215 25 23 34
St 45.8 1.0405 410 to 530 255 245 235 21 19 27
17 Mn 4 1.0481 460 to 580 270 270 260 23 21 34
19 Mn 5 1.0482 510 to 610 310 310 300 19 17 34
15 Mo 3 1.5415 450 to 600 270 270 260 22 20 34
13 CrMp 4 4 1.7335 440 to 590 290 290 280 22 20 34
10 CrMo9 10 1.7380 450 to 600 280 280 270 20 18 34
14 MoV 6 3 1.7715 460 to 610 320 320 310 20 18 41
X 20 CrMoV 12 1 1.4922 690 to 840 490 490 490 17 14 34

Equally Effective Standards

  • ASTM A335 – Waterproofing, Waterproofing, Waterproofing, Waterproofing
  • ASTM A106 – Connectivity, structural integrity, structural integrity
  • DIN 2448 – Remote Controls
  • DIN 2391 – Connectors, Connectors, Connectors
  • EN 10216 – Electrical system, in accordance with DIN 17175, electrical equipment.
  • DIN EN 10216-2 – Issue 10216-2
  • DIN EN 10028-2 – Read more
  • DIN 17177 – DIN 17175 (DIN 17175)

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