DIN 17175 oilfiled seamless steel boiler tube and boiler pipes

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DIN17175 Seamless Steel pipes

Steel grade:
DIN17175 St35.8
DIN17175 St45.8
15Mo3
13CrMo44
10CrMo910

Chemical Composition of DIN 17175 seamless boiler pipes

Standard	Grade	Chemical Composition Limits (%)
Standard	Grade	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

Mechanical Properties of DIN 17175 seamless boiler pipes

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

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.