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Studded Tubes Finned Tubes Alloy Steel ASTM A335 P9 For Furnaces In Power Plant

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Ms. Isabela Yao

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+8615906753302

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Studded Tubes Finned Tubes Alloy Steel ASTM A335 P9 For Furnaces In Power Plant

Brand Name:	YUHONG
Model Number:	Studded Tubes
MOQ:	Depend
Price:	Negotiable
Packaging Details:	Ply-wooden Case With Iron Frame
Payment Terms:	TT, LC

Detail Information

Product Description

Ratings & Reviews

Detail Information

Place of Origin:

China

Certification:

ABS, BV, DNV, CCS, LR,etc.

Fin Tubes Type:

Studded Tubes

Studded Tubes Standard:

ASTM A335

Studded Tubes Material:

ASTM A335 P9:

Alloy Steel Seamless Pipes

Studs Material:

Stainless Steel TP304

Studded Tubes Size And Length:

According To Clients' Need

For Large Equipment, Heat Exchanger / Boiler / Furnaces / Condensers / Superheaters, Etc

Packing:

Ply-wooden Case With Iron Frame

Supply Ability:

1000 tons/month

Highlight:

Studded tubes for power plant furnaces

Alloy steel ASTM A335 P9 tubes

Finned tubes with studs

Product Description

Studded Tubes Finned Tubes Alloy Steel ASTM A335 P9 For Furnaces In Power Plant

Studded Tubes (P9 base) also called pin-finned tubes, with cylindrical studs welded in square/hexagonal arrays via ERW (electric resistance welding).ASTM A335 P9 Alloy Steel Studded Tubes & Finned Tubes are high-performance heat-exchange components specifically designed for high-temperature, high-pressure furnaces in power plants. And they combine the exceptional material properties of P9 steel with improve heat transfer surfaces to meet the extreme demands of boiler and HRSG (Heat Recovery Steam Generator) systems.

Detailes of ASTM A335 Base Pipes ( Wall thickness generally is Min. )

Chemical Composition (%)

Grade	C	Mn	P	S	Si	Cr	Mo
P9	0.15	0.30-0.60	0.025	0.025	0.25-1.00	8.00-10.00	0.90-1.10

Mechanical Properties

Grade	Tensile Strength,min	Yield Strength (0.2%Offset,min)
P9	60ksi (415 MPa)	30ksi (205 MPa)

ASTM A335 P9 ,also known as 9Cr-1Mo,Iit is a ferritic chromium-molybdenum alloy steel seamless pipe, optimized for elevated-temperature service. P9 pipes have high-temperature strength,excellent creep resistance and mechanical stability up to 600°C (1112°F).And about oxidation & sulfidation resistance: , have high chromium content provides superior resistance to scaling and corrosion in flue gas/steam environments.

Studded Tubes Finned Tubes Alloy Steel ASTM A335 P9 For Furnaces In Power Plant 0

Application

Air Preheaters: Heat combustion air to improve furnace efficiency.

Economizers: Preheat boiler feedwater using low-temperature flue gas.

Boiler Superheaters & Reheaters: Heat steam from high-temperature flue gas.

Heat Recovery Steam Generators (HRSG): Recover exhaust heat from gas turbines in combined-cycle plants.

Specifications For Various Types Of Finned Tubes

Type	Description	Base tube	Fin specification (mm)
Type	Description	O.D. (mm)	Fin pitch	Fin height	Fin thick
Embedded	G-type fin tube	16-63	2.1~5	<17	~0.4
Extruded	Single metal / Combined metal	8-51	1.6~10	<17	0.2-0.4
	Low fin tube / T-type fin tube	10-38	0.6~2	<1.6	~0.3
	Bamboo tube / corrugated tube	16-51	8.0~30	<2.5	~0.3
Wound	L / KL / LL type fin tube	16-63	2.1~5	<17	~0.4
String	String fin tube	25-38	2.1-3.5	<20	0.2-0.5
U-type	U-type fin tube	16-38	/	/	/
Welding	HF-welding fin tube	16-219	3~25	5~30	0.8-3
	H/HH type fin tube	25-63	8~30	<200	1.5-3.5
	Studed fin tube	25-219	8~30	5~35	φ5-20

Studded Tubes Finned Tubes Alloy Steel ASTM A335 P9 For Furnaces In Power Plant 1

Ratings & Review

Overall Rating

4.7

Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings

5 stars

67%

4 stars

33%

3 stars

2 stars

1 stars

All Reviews

Kenneth Tan

Singapore Feb 25.2026

Helpful (3)

With our humidity and year-round high temps, corrosion resistance and heat transfer are always a concern. These tubes have been performing nicely.

Pieter

South Africa Dec 17.2025

Helpful (4)

With high firebox temps and some sour gas in the mix, regular carbon tubes don't last. These have been solid.

Rashid

United Arab Emirates Dec 10.2025

Helpful (2)

Good oxidation resistance, matches well with the T9. No scaling or thinning noticed.

Tags:

Studded Tube

Solid Fin Tube

Serrated Finned tube

Embedded G Fin Tube

Extruded Fin Tube

Wound Fin Tube

Low Fin Tube

Square Fin Tube

Longitudinal Finned Tube

Enhanced Heat Transfer Tube

Fin Tube Support

Return Bend

Heat Exchanger Tube

Stainless Steel Heat Exchanger Tube

Duplex Stainless Steel Heat Exchanger Tube

Super Duplex Stainless Steel Heat Exchanger Tube

Nickel Alloy Steel Heat Exchanger Tube

Copper Alloy Steel Heat Exchanger Tube

Titanium Alloy Steel Heat Exchanger Tube

Alloy Steel Heat Exchanger Tube

U Bend Heat Exchanger Tube

Carbon Steel Heat Exchanger Tubes

Boiler Tube

Nickel Alloy Steel Boiler Tube

Stainless Steel Boiler Tube

Duplex Stainless Steel Boiler Tube

Alloy Steel Boiler Tube

Carbon Steel Boiler Tube

Fired Heater Parts

Baffle Plate

Tubesheet

Studded Tube

Solid Fin Tube

Serrated Finned tube

Embedded G Fin Tube

Extruded Fin Tube

Wound Fin Tube

Low Fin Tube

Square Fin Tube

Longitudinal Finned Tube

Enhanced Heat Transfer Tube

Fin Tube Support

Return Bend

Heat Exchanger Tube

Stainless Steel Heat Exchanger Tube

Duplex Stainless Steel Heat Exchanger Tube

Super Duplex Stainless Steel Heat Exchanger Tube

Nickel Alloy Steel Heat Exchanger Tube

Copper Alloy Steel Heat Exchanger Tube

Titanium Alloy Steel Heat Exchanger Tube

Alloy Steel Heat Exchanger Tube

U Bend Heat Exchanger Tube

Carbon Steel Heat Exchanger Tubes

Boiler Tube

Nickel Alloy Steel Boiler Tube

Stainless Steel Boiler Tube

Duplex Stainless Steel Boiler Tube

Alloy Steel Boiler Tube

Carbon Steel Boiler Tube

Fired Heater Parts

Baffle Plate

Tubesheet

products details

Studded Tube

Solid Fin Tube

Serrated Finned tube

Embedded G Fin Tube

Extruded Fin Tube

Wound Fin Tube

Low Fin Tube

Square Fin Tube

Longitudinal Finned Tube

Enhanced Heat Transfer Tube

Fin Tube Support

Return Bend

Heat Exchanger Tube

Stainless Steel Heat Exchanger Tube

Duplex Stainless Steel Heat Exchanger Tube

Super Duplex Stainless Steel Heat Exchanger Tube

Nickel Alloy Steel Heat Exchanger Tube