Boilers and Superheaters Tube ASME SA213 Tp347 Tp347h Seamless Stainless Tubes

• Type: Stainless Steel Pipes
• Standard: ASTM, AISI, GB, JIS, DIN, EN
• Grade: 300 Series
• Certification: ISO, RoHS, IBR, AISI, ASTM, GB, EN, DIN, JIS
• Shape: Round
• Technique: Seamless/Welded
• Surface Treatment: Bright, Pickling, Polishing, Annealing, etc.
• Place of Origin: Zhejiang China
• Alloy or Not: Is Alloy
• Delivery Time: 8-14 Days
• Model Number: 304, 304L, 201, 316, 316L, 321, 317L, 309S, 310S
• Application: Construction, Decorative, etc.
• Welding Line Type: ERW
• Processing Service: Bending, Welding, Punching, Decoiling, Moulding, C
• Item: 304 Inox Steel Tubing Steel Pipe
• Keyword: Stainless Steel Pipe
• Length: 5.8m, 6m, 8m, 11.8m or as Required.
• Used: Production Equipment and Lines for Food, Beverages
• Transport Package: According to Customer Requirements
• Specification: OD 6mm-5000mm
• Trademark: FLK
• Origin: Wenzhou, Zhejiang, China
• HS Code: 7304419000
• Production Capacity: 5000000pieces/Year

Product Description

Product Description

ASME SA213 TP347 and TP347H are grades of seamless stainless steel tubes specifically designed for use in boilers and superheaters. These materials offer excellent high-temperature strength and corrosion resistance, making them ideal for demanding applications in power plants and industrial boilers. Here's an overview of their properties, characteristics, and applications:

Composition and Properties:

Both TP347 and TP347H are austenitic stainless steels, stabilized by niobium (columbium) to enhance their resistance to intergranular corrosion.

TP347 Composition:

• Chromium (Cr): 17-19%
• Nickel (Ni): 9-13%
• Carbon (C): ≤ 0.08%
• Manganese (Mn): ≤ 2%
• Silicon (Si): ≤ 0.75%
• Phosphorus (P): ≤ 0.045%
• Sulfur (S): ≤ 0.03%
• Niobium (Nb): 10xC% - 1.0%

TP347H Composition:

• Chromium (Cr): 17-19%
• Nickel (Ni): 9-13%
• Carbon (C): 0.04-0.10%
• Manganese (Mn): ≤ 2%
• Silicon (Si): ≤ 0.75%
• Phosphorus (P): ≤ 0.045%
• Sulfur (S): ≤ 0.03%
• Niobium (Nb): 10xC% - 1.0%

The primary difference between TP347 and TP347H is the carbon content, with TP347H having a higher carbon content to improve high-temperature strength.

High-Temperature Strength:

Both TP347 and TP347H offer excellent mechanical properties at elevated temperatures, which is crucial for boiler and superheater applications. The higher carbon content in TP347H provides better creep resistance, making it suitable for higher temperature and pressure environments.

Corrosion Resistance:

Both grades exhibit excellent resistance to oxidation and creep in high-temperature environments. The addition of niobium stabilizes the material and prevents the formation of chromium carbides, which enhances their resistance to intergranular corrosion.

Mechanical Properties:

• Density: 7.93 g/cm³
• Melting Point: 1398-1446°C (2550-2635°F)
• Tensile Strength: Typically in the range of 515 MPa (75 ksi)
• Yield Strength: Typically 205 MPa (30 ksi) for TP347 and higher for TP347H
• Elongation: Around 35%

Applications:

Due to their high-temperature and corrosion-resistant properties, TP347 and TP347H seamless stainless steel tubes are used in:

• Boilers: Tubing that withstands high pressure and temperature cycles.
• Superheaters: Components that require sustained performance at high temperatures.
• Heat Exchangers: Tubes that need to resist thermal fatigue and corrosion.
• Petrochemical Industry: High-temperature and high-pressure processing equipment.
• Power Plants: Steam generation systems that operate under extreme conditions.

Fabrication and Welding:

Both TP347 and TP347H can be welded using standard welding techniques such as TIG, MIG, and resistance welding. Post-weld heat treatment is generally recommended to restore corrosion resistance and relieve stresses, especially for thick sections.

In summary, ASME SA213 TP347 and TP347H seamless stainless steel tubes are well-suited for boiler and superheater applications due to their high-temperature strength, corrosion resistance, and mechanical properties. Their ability to perform under extreme conditions makes them a reliable choice for critical components in power generation and industrial processes.

Product Parameters

1.	Item	Boilers and Superheaters tube ASME SA213 TP347 TP347H Seamless stainless tubes
2.	Standard	ASTM A213, A312, ASTM A269,ASTM A778, ASTM A789, DIN 17456,DIN 17457, DIN 17459, JIS G3459, JIS G3463, GOS T9941, EN 10216, BS3605, GB13296,etc.
3.	Material	201,202,301,304,304L,304N,XM21,304LN,309S,310S,316,316Ti, 316L,316N,316LN,317,317L,321,329,etc.
4.	Specifications	Wall thickness	1.0-150mm(SCH10S-XXS)
		Outside diameter	3.0-2500mm(1/8"-100")
		Length	6m,5.8m,8m,11.8m,12m or as required.
5.	Surface	Pickling, annealing, polishing, bright, sand blast, hair line, etc.
6.	Price Term	Ex-work, FOB, CFR, CIF, or as required.
7.	Payment Term	T/T, L/C, Western Union.
8.	Export to	Singapore, Canada, Indonesia, Korea, USA, UK, Thailand, Saudi Arabia, Vietnam, Iran, India, Peru, Ukraine ,Brazil, South Africa, etc.
9.	MOQ	500kg
10.	Delivery Time	Prompt delivery or according to order's quantity.
11.	Package	Export standard package: bundled wooden box, suit for all kinds of transport, or be required.
12.	Application	widely used in petroleum, chemical, medical, food, light industry, machinery, instrument and other industrial pipeline and mechanical structure parts, etc.
13.	Contact	If you have any question, please feel free to contact me.

Chemical Composition

 

Stee Grade	Chemical Composition %
	C	Cr	Ni	Mn	P	S	Mo	Si	Cu	N	Other
201	≤0.15	16.00-18.00	3.50-5.50	5.50-7.50	≤0.060	≤0.030		≤1		≤0.25
202	≤0.15	17.00-19.00	4.00-6.00	7.50-10.00	≤0.060	≤0.030		≤1		≤0.25
301	≤0.15	16.00-18.00	6.00-8.00	≤2.0	≤0.065	≤0.030		≤1.00
302	≤0.15	17.00-19.00	8.00-10.00	≤2.00	≤0.035	≤0.030		≤1.00
304	≤0.08	18.00-20.00	8.00-11.00	≤2.00	≤0.045	≤0.030		≤1.00
304L	≤0.035	18.00-20.00	8.00-12.00	≤2	≤0.045	≤0.030		≤1.00
305	≤0.12	17.00-19.00	11.00-13.00	≤2	≤0.045	≤0.03	Om	≤1.00
309S	≤0.08	22.00-24.00	12.00-15.00	≤2	≤0.045	≤0.030		≤1
310S	≤0.08	24.00-26.00	19.00-22.00	≤2	≤0.045	≤0.030		≤1.00
316	≤0.08	16.00-18.00	10.00-14.00	≤2	≤0.045	≤0.030	2.00-3.00	≤1.00
316L	≤0.035	16.00-18.00	10.00-14.00	≤2.00	≤45	≤0.03	2.00-3.0	≤1.00
317	≤0.08	18.00-20.00	11.00-14.00	2.00	≤0.045	≤0.030	3.00-4.00	≤1
317L	≤0.035	18.00-20.00	11.00-15.00	≤2.00	≤0.045	≤0.030	3.00-4.00	≤1.00
321	≤0.08	17.00-19.00	9.00-12.00	≤2	≤0.045	≤0.030		≤1.00			Ti5(C%-0.02 ~0.08
347	≤0.08	17.00-19.00	9.00-13.00	≤2.00	≤0.045	≤0.030		≤1.00			Nb≥10*C%

 

 

Product & Application

   

 

 

   

 

Application of welded steel pipe,seamless steel pipe, cold hot rolled round pipe, and stainless steel pipe: construction material, buidlings, bridges, building decoration, chemical industry, car mainfold, water supply, petroleum pipeline, water pipe,boiler pipe, automobile pipe,hydraulic, building and equipment, pipeline