Applications

Boiler tube is installed inside boiler to heat water in order to generate steam, boiler is a closed pressure vessel designed in varieties of types, water tube boiler and fire tube boiler are the main types.

• Welded boiler tubes can be supplied from stock to suit your needs
• Hot finished boiler tubes can be supplied from new production
• We can arrange cutting, deburring and testing
• Boiler tubes can be swaged/bulged to suit your requirements
• Shipping can be arranged worldwide
• Stock lengths ranging from 10200-12250mm

Steel Grade	Standard			Application
	GB(China)	ASME（USA）	DIN/EN(Euro)
Carbon steel	10 20 20G 20MnG 25MnG	SA-106B SA-192 SA-210A1 SA106C SA-210C	PH265GH P195GH P235GH St35.8 St45.8	Economizer tube Water wall tube
Mo steel	15MoG 20MoG	SA-209 T1 SA-209 T1a SA-209 T1b	15Mo3 16Mo3	Water wall tube Superheater tube Reheater tube
Cr-Mo Steel	12CrMoG 12Cr2MoG 12Cr1MoVG 15CrMoG 10Cr9MoVNb	SA-213 T11 SA-213 T22 SA-213 T24 SA-213 T91 A335 P1  A335 P2 A335 P5  A335P9 A335 P11	12Cr1MoV 14MoV63 10CrMo910 X10CrMoVNb91 10CrMo5-5, 13CrMo4-5	Superheater tube Reheater tube
Cr-Mo-W steel	12Cr2MoWVTiB	SA-213 T23 SA-214 T911 SA-213 T92 SA-213 T122 A335 P23 A335 P911 A335 P92 A335 P122	---	Superheater tube Reheater tube
Austentic Stainless steel	---	AP304  TP304H TP321 TP321H TP347 TP347H TP316 TP316H S30432 TP310HCbN	---	Superheater tube Reheater tube

Quality Assurance

We have capability and capacity to ensure boiler tube in superior condition, with advanced inspection and testing procedures, standard tests include dimensional examination, visual checking, chemical composition, mechanical properties as well as non destructive test 100% eddy current test.

Fire Tube Boiler

Fire-tube boiler is a type of boiler in which hot gas passes from the fire through one or more pipes that pass through a sealed water container. The heat of the gas is transferred through the wall of the tube through heat conduction, heating the water and eventually generating steam. Fire tube boilers are the third of the four historical types of boilers: low-pressure tank or “haystack” boilers, flue boilers with one or two large flues, fire tube boilers and high-pressure boilers with many small tubes

Water Tube Boiler

Water tube boiler is a type of boiler in which water circulates in tubes heated externally by the fire. The fuel is burned in the furnace to produce hot gas, which heats the water in the steam generation tube. In smaller boilers, the additional power generation tubes are separated in the furnace, while larger utility boilers rely on water injection tubes that make up the furnace wall to generate steam. High-pressure water tube boiler: The hot water then rises into the steam drum. Here, saturated steam is drawn away from the top of the drum.

Boiler tubing is used in these industries

Sunny steel are instrumental in offering our clients with a wide range of Boiler Tubes that is used in varied industrial applications. We also undertake customization of these tubes to meet the specific requirements of our clients. These Boiler Tubes are known for their resistance to corrosion and tolerance for withstanding temperature variations.

Steam BoilersBoiler tubing is used in these industries:

• Power Generation
• Fossil Fuel Plants
• Electric Power Plants
• Industrial Processing Plants
• Cogeneration Facilities

Boiler tubes need to withstand high pressure and temperature.

Overview of standards and types of boiler pipes

You are looking for boiler pipes with different specifications?

DIN 17175	EN 10216-2	ASTM A335
St 35.8, I + III	P 235 GH, 1 + 2	P5
15 Mo 3	16 Mo 3	P 11
13 CrMo 44	13 CrMo 4-5	P22
10 CrMo 910	10 CrMo 9-10	P9
X 10 CrMo VNb 9-1	X 10 CrMo VNb 9-1	P91
X 20 CrMo V 12-1	X 20 CrMo V 11-1

Carbon steel for water distribution for temperature 0° - 100°C

EN - DIN	WNr	AISI/ Tradename	ASTM - UNS	Pipe seamless	Pipe welded
P235TR1	1.0254	-	-	A/ SA53B	A/ SA53B
				EN10216-1	EN10217-1

Carbon steel for temperature -20° - 400°C for pressure application

EN - DIN	WNr	AISI/ Tradename	ASTM - UNS	Pipe seamless	Pipe welded
P235GH	1.0345	-	-	A/ SA106 Gr B/ A	A/ SA672 B65
				EN10216-2	EN10217-2/ -5
P265GH	1.0425	-	-	A/ SA106 Gr C/ A	A/ SA672 BB70
				EN10216-2	EN10217-2/ -5
P355N/ NH	1.0562/ 1.0565	-	-	API 5L X52	API 5L X52
				EN10216-3	EN10217-3
P460N/ NH	1.8905/ 1.8935	-	-	API 5L X65	API 5L X65
				EN10216-3	EN10217-3

Low Alloy steel and Alloy Steel for temperature 0° to 650°C for pressure application

EN - DIN	WNr	AISI/ Tradename	ASTM - UNS	Pipe seamless	Pipe welded
16Mo3	1.5415	-	-	A/ SA335 P1	A/ SA691 1CR
				EN10216-2	EN10217-5
X11CrMo5-1	1.7362	-	-	A/ SA335 P5	A/ SA691 5CR
				EN10216-2	EN10217-5
X11CrMo9-1	1.7386	-	-	A/ SA335 P9	A/ SA691 9CR
				EN10216-2	EN10217-5
13CrMo4-5	1.7335	-	-	A/ SA335 P11	A/ SA691 1 1/4CR
				EN10216-2	EN10217-5
10CrMo9-10	1.7380	-	-	A/ SA335 P22	A/ SA691 2 1/4CR
				EN10216-2	EN10217-5
X10CrMoVNb9-1	1.4903	-	-	A/ SA335 P91	A/ SA691 91CR
				EN10216-2	EN10217-5
X10CrWMoVNb9-2	1.4901	-	-	A/ SA335 P92	A/ SA691 92CR
				EN10216-2	EN10217-5

Low temperature carbon steel for pressure purpose and low temp up to -50°C

EN - DIN	WNr	AISI/ Tradename	ASTM - UNS	Pipe seamless	Pipe welded
P215NL	1.0451	-	-	A/ SA333 Gr1/ Gr6	A/ SA671CC60/70
				EN10216-4	EN10217-4
P255QL	1.0452	-	-	A/ SA333 Gr1/ Gr6	A/ SA671CC60/70
				EN10216-4	EN10217-4
P265NL	1.0453	-	-	A/ SA333 Gr1/ Gr6	A/ SA671CC60/70
				EN10216-4	EN10217-4
P355NL1/ NL2	1.0566	-	-	A/ SA333 Gr6	A/ SA671CC60/70 A/ SA333 Gr6
				EN10216-3	EN10217-3

Low temperature Nickel Steel for pressure purpose and low temp up to -196°C

EN - DIN	WNr	AISI/ Tradename	ASTM - UNS	Pipe seamless	Pipe welded
X10Ni9/ X8Ni9	1.5682/ 1.5662	-	-	A/ SA333 Gr. 8	A/ SA671C100/ CH100
				EN10216-4	EN10217-4
12Ni14	1.5637	-	-	A/ SA333 Gr3	A/ SA671CF66
				EN10216-4	EN10217-4

Sunny Steel’s state-of-the-art manufacturing processes and advanced inspection and testing procedures ensure our boiler tube stand up to the harsh environments.