DIN 17175 Seamless Steel Boiler Tubes

DIN 17175: Seamless Steel Tubes for Elevated Temperatures

Standard: DIN 17175
We can supply various grades of seamless boiler pipes, such as St35.8, St45.8, 15Mo3, 13CrMo44, 10CrMo910, etc.

Applications

• DIN 17175 seamless boiler tube is widely used in boiler industry, petroleum, chemical industry, chemical fiber, metallurgy, medicine, machinery, paper, heat preservation, refrigeration, mechanical equipment, food, electricity, water, construction, aviation, aerospace, marine, shipbuilding, environmental protection and boiler heat exchangers.
• This seamless boiler pipe is also used for producing storage tanks of heat-resistant steels used in boiler-making and tool-making industries, and for constructing pressure reservoirs.
• The seamless steel boiler tube is specially used as heating surface pipe in low and medium pressure boilers (The working pressure is not higher than 5.88 Mpa and the working temperature is below 450℃.). This seamless boiler pipe can also be used as heating surface pipe, economizer, superheater, reheater and petrochemical industrial pipe for high-pressure boilers (The working pressure is above 9.8 Mpa in general and the working temperature is between 450℃ to 650℃. ).

Size Range The size range of JST seamless steel boiler tube is as follows:

• Outer dimension is from 6.0 mm to 219.0 mm.
• Wall thickness of DIN 17175 seamless boiler pipe ranges from 1 mm to 30 mm.
• The maximum length is 12 m.

Competitive Advantages of DIN 17175 Boiler Tube

• JST configures multiple inspection equipment and professional inspection personnel who have received rigorous pre-service inspection technician training. Only when they pass the appropriate examinations and obtain the corresponding qualification certificates, they can inspect seamless boiler pipes. We also conduct regular technical training to make them master the international advanced boiler tube inspection methods.
• The production process is in accordance with PDCA circular comprehensive quality management system. We strictly control the production process and realize real-time monitoring of seamless boiler pipes.
• JST does heat treatment for boiler tubes in accordance with the standard requirements. This treatment results in no oxidation layer on the surface. We also carry out kinds of inspections according to customers' requirements, such as eddy current inspection, magnetic particle testing, magnetic flux leakage testing, ultrasonic joint inspection and other inspections, in order to ensure stable performance of seamless boiler pipes. Our company also provides relevant inspection reports of boiler tubes.
• According to customers' needs, JST can also provide other sizes or other grades of seamless boiler pipes.

Delivery Condition We deliver our seamless boiler pipes in the following conditions, such as hot rolled, cold worked, annealed, normalized and stress released states.

Parameters of DIN 17175 Seamless Steel Boiler Tubes

1. Chemical Composition

Standard	Grade	Chemical Composition Limits (%)
		C	Si	Mn	P、S	Cr	Mo
DIN 17175	St35.8	≤ 0.17	0.10-0.35	0.40-0.80	≤ 0.030	/	/
	St45.8	≤ 0.21	0.10-0.35	0.40-1.20	≤ 0.030	/	/
	15Mo3	0.12-0.20	0.10-0.35	0.40-0.80	≤ 0.030	/	0.25-0.35
	13CrMo44	0.10-0.18	0.10-0.35	0.40-0.70	≤ 0.030	0.70-1.10	0.45-0.65
	10CrMo910	0.08-0.15	≤ 0.50	0.40-0.70	≤ 0.030	2.00-2.50	0.90-1.20

2. Mechanical Properties of Seamless Boiler Pipe

Standard	Grade	Tensile Strength (MPa)	Yield Strength (MPa)	Elongation (%)
DIN 17175	St35.8	360-480	≥ 235	≥ 25
	St45.8	410-530	≥ 255	≥ 21
	15Mo3	450-600	≥ 270	≥ 20
	13CrMo44	440-590	≥ 290	≥ 20
	10CrMo910	450-600	≥ 280	≥ 18

Jiangyin Changjiang Steel Tube Making Factory is a leading supplier and exporter of seamless boiler tubes and various special pipes. We mainly manufacture structure pipe, fluid pipe, API pipe, marine pipe, alloy pipe, tubing, casing, line pipe, etc. Our company sets up a steel tube technology R & D center with advanced pipe testing equipment. Through strict testing process, we are able to produce high quality steel pipes for customers. Our seamless boiler pipes have been exported to the Middle East, CIS, Southeast Asia, Africa, South America, North America, Europe, Australia and many other countries and regions.