How does the composition of stainless steel 347/347H differ from other stainless steel grades used in heat exchanger tubes?
The composition of stainless steel 347/347H distinguishes it from other stainless steel grades commonly used in heat exchanger tubes. Stainless steel 347 is a stabilized austenitic stainless steel alloy containing chromium, nickel, and columbium (niobium). Adding columbium/niobium offers exceptional resistance to intergranular corrosion, especially in high-temperature environments. This stabilization also prevents sensitization, which is the formation of chromium carbides at grain boundaries that can lead to intergranular corrosion. In contrast, stainless steel 347H is a high-carbon version of 347, which provides improved high-temperature strength.

The high carbon content enhances the material's ability to withstand elevated temperatures without significant deformation or creep. The higher carbon concentration also imparts greater resistance to sensitization, making stainless steel 347H particularly suitable for heat exchanger applications involving frequent exposure to high temperatures. Compared to other stainless steel grades used in heat exchanger tubes, the unique composition of stainless steel 347/347H offers excellent resistance to corrosion, intergranular attack, and thermal stresses, making it an ideal choice for demanding heat transfer applications.

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347 Stainless Steel Finned Heat Exchanger Tubes, SS 347 Heat Exchanger Tube, Stainless Steel 347 Heat Exchanger Tube, 347H Stainless Steel Heat Exchanger Tube, SS 347H Heat Exchanger Tube, 347 Stainless Steel Heat Exchanger Tube, Stainless Steel 347H Heat Exchanger Tubes, SS TP347 Heat Exchanger Tubing Supplier In Mumbai, India.

What are the key properties of stainless steel 347/347H Tubes?
Stainless steel 347 tubes possess several key properties that make them highly desirable for various applications. They exhibit excellent resistance to high temperatures, making them suitable for heat exchangers, furnace components, and other elevated-temperature environments. Adding columbium/niobium provides exceptional intergranular corrosion resistance, reducing the risk of corrosion and cracking. This characteristic is particularly important in environments where the tubes are exposed to sensitization due to extended exposure to high temperatures. Additionally, stainless steel 347 tubes offer good mechanical properties, including high tensile strength, creep resistance, and toughness.

Stainless steel 347H tubes offer a range of key properties that make them highly advantageous for various applications. One of their notable properties is their exceptional high-temperature strength. With the addition of higher carbon content compared to stainless steel 347, stainless steel 347H tubes exhibit improved resistance to deformation and creep at elevated temperatures, making them suitable for applications that involve sustained exposure to heat. Moreover, stainless steel 347H tubes retain the excellent intergranular corrosion resistance provided by the columbium/niobium stabilization, preventing sensitization and the subsequent formation of chromium carbides at grain boundaries.

Specification Of 347 Stainless Steel Heat Exchanger Tube

Standard ASTM A213, A249 / SA213, SA249
Delivery Condition Bright Annealed, Annealed and Pickled, Cold Drawn, Polished, MF
Size Range 6.53 to 127 mm
Length up to 20 Meter
Heat Exchanger Tubes Bending Radius 1.25 x Outer Diameter up to 1700mm
Wall Thickness Range 0.5 To 5 mm
Tolerance +/-0.05 Mm
END Beveled End, Plain End, Treaded
Processing Service Cutting, Bending, Decoiling, Welding, Punching, Moulding
Technique Hot rolled, Cold drawn, Cold rolled, Extrusion Tube

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Types Of Stainless Steel 347 Heat Exchanger Tubes

Stainless Steel 347 Round Heat Exchanger Tube

347 Stainless Steel Round Heat Exchanger Tube

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Stainless Steel 347 Straight Heat Exchanger Tube

347 Stainless Steel Straight Heat Exchanger Tube

SS 347H Straight Heat Exchanger Tube, Stainless Steel 347 Straight Heat Exchanger Tube Supplier, Stainless Steel 347 Straight Heat Exchanger Tube Stockist.

Stainless Steel 347 Heat Exchanger U Tube

347 Stainless Steel Heat Exchanger U Tube

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Stainless Steel 347 Seamless Heat Exchanger Tube

347 Stainless Steel Seamless Heat Exchanger Tube

Stainless Steel 347 Heat Exchanger Seamless Tube Stockist, SS 347H Seamless Heat Exchanger Tube, Stainless Steel 347 Seamless Heat Exchanger Tube Supplier.

Widest Range of 347-347H Stainless Steel Heat Exchanger Tubes in Mumbai, India.

  • Widest Range347 Stainless Steel Heat Exchanger Welded Tubing
  • Widest RangeStainless Steel 347 Recuperative Heat Exchanger Tube
  • Widest RangeStainless Steel 347 Electropolish Heat Exchanger Tube
  • Widest RangeStainless Steel 347 Cross Flow Heat Exchanger Tube
  • Widest Range347 Stainless Steel Heat Exchanger Tubing
  • Widest RangeStainless Steel 347 Parallel Flow Heat Exchanger Tube
  • Widest RangeStainless Steel 347 Counter Flow Heat Exchanger Tube
  • Widest RangeStainless Steel 347 Hybrid Flow Heat Exchanger Tube
  • Widest RangeStainless Steel 347 Capacitive Heat Exchanger Tube
  • Widest RangeStainless Steel 347 Welded Heat Exchanger Tube
  • Widest RangePolished 347 Stainless Steel Heat Exchanger Tubing
  • Widest RangeASTM A213 SS 347 Seamless Heat Exchanger Tube
  • Widest RangeASME SA213 Stainless Steel 347 Heat Exchanger Tube
  • Widest Range347 Stainless Steel Heat Exchanger Tubing Suppliers
  • Widest Range347 Stainless Steel Heat Exchanger Tube HS Code
  • Widest RangeASTM A249 347 Welded Heat Exchanger Tube
  • Widest Range347 SS Heat Exchanger Tube
  • Widest RangeASME SA213 Stainless Steel 347H Heat Exchanger Tube
  • Widest RangeStainless Steel 347H Heat Exchanger Round Tube
  • Widest RangeA213 Stainless Steel 347H Heat Exchanger Tube

Check Stainless Steel 347/347H Tubes Types In Detail

347 Stainless Steel Heat Exchanger Tubes Equivalent Grades

STANDARD WERKSTOFF NR. UNS JIS GOST EN
SS 347 1.4550 S34700 SUS 347 08Ch18N12B X6CrNiNb18-10
SS 347H 1.4961 S34709 SUS 347H X6CrNiNb18-12

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347 / 347H Stainless Steel Heat Exchanger Tubes Price

Product Price
S34700 Stainless Steel Heat Exchanger Tube Price US $ 1000 - 3000 / Ton
ASTM A213 Stainless Steel 347 Heat Exchanger Tube Price List $700.00 - $1,900.00/ Ton
Austenitic Stainless Steel 347H Heat Exchanger Tube Price Per Piece $4.00 - $100.00/ Piece
38.10mm SS 347H Heat Exchanger Tube Price Per Kg $4 - 23 / Kg
12.70 mm Stainless Steel S34709 Heat Exchanger Tube Price US $ 1100 - 2000 / Ton
347 Stainless Steel Seamless Heat Exchanger Tube Price $1,082.00 - $3,489.00/ Ton
347 Stainless Steel Welded Heat Exchanger Tube Price US $ 1400 - 12000 / Ton
SS 1.4961 Heat Exchanger Tube Price List US $ 12 - 45 / Pound
347 Stainless Steel Heat Exchanger Tube Price In India $698.00 - $1,480.00/ Ton

For Quatation & Questions Related To Stainless Steel 347 Heat Exchanger Tubes

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Stainless Steel 347 Heat Exchanger Tube Manufacturing Process

Drawing/ Floating Process

Pulling a metal bar, rod, or wire through the entirety of a die to change its finish, shape, size, and/or mechanical qualities is known as floating or drawing. The tube's outer, inner, and wall thicknesses are all reduced via the tube drawing procedure. Stainless steel tubes benefit from maintaining the integrity of their surface.

Continuous Heat Exchanger Tube Mills

The production of Heat Exchanger tubes has been transformed by continuous tube mills. These mills do away with the necessity for forging welding or filler metal, in contrast to conventional procedures. With the use of this technology, Heat Exchanger pipes and tubes may be produced continuously, increasing productivity while lowering costs and improving efficiency.

Continuous Casting

A notable advancement in the production of Heat Exchanger tubes is continuous casting. The metal is solidified into a continuous billet through the continuous pouring of molten metal into a water-cooled mould. Better uniformity and enhanced mechanical qualities are guaranteed by this continuous casting technique for the tubes.

Annealing

Metal is heated above the point of re-crystallization and cooled to room temperature during the annealing process. The molecular bonds in metal tighten when it is shaped, making it rigid. The metal is put through an annealing process to regain its ductility.

Sinking Process

Tube sinking is a drawing technique that reduces the diameter of tubes. In this drawing technique, a tube is run through a die without the need of a mandrel. Good inner surface quality is not ensured when using a mandrel. The die angel determines the integrity of the outer surface. The die being used produces a uniform surface. A tube can be significantly smaller than it was originally. When cost is a factor, tube sinking is ideal.

Inspection and Testing

Before sending our items to our consumers, we conduct inspection procedures to verify their integrity.


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Chemical Composition Of Stainless Steel 347H Heat Exchanger Tube

Grade C Mn Si P S Cr Cb Ni Fe
SS 347 0.08 max 2.0 max 1.0 max 0.045 max 0.030 max 17.00 – 20.00 10xC – 1.10 9.00 – 13.00 62.74 min
SS 347H 0.04 – 0.10 2.0 max 1.0 max 0.045 max 0.030 max 17.00 – 19.00 8xC – 1.10 9.0 -13.0 63.72 min

Mechanical Properties Of 347 Stainless Steel Heat Exchanger Tubing

Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
8.0 g/cm3 1454 °C (2650 °F) Psi – 75000 , MPa – 515 Psi – 30000 , MPa – 205 35 %

Testing & Inspection of 347 Stainless Steel Heat Exchanger Tubes

Testing (Destructive, Non Destructive)

Mechanical Testing Such as Tensile, Elongation, Reduction of Area Sulfide Stress Corrosion Cracking (SSC), NACE TM 0177
Micro Test Radiography Test
Intergranular Corrosion (IGC) Test Impact Test
Macro Test Dye Penetrant Test (DP Test)
Positive Material Identification – PMI Testing Hydrostatic Test
Chemical Analysis – Spectro Analysis Hydrogen-Induced Cracking (HIC) Test
Hardness Test Ultra Sonic Test (UT)
Pitting Resistance Test Eddy Current Testing
Flaring Test Bend Test
Flattening Test

Stainless Steel 347 Heat Exchanger Tube Sizes & Thickness

Tube Outside diameter      Wall thickness
Size inch mm BWG inch mm
1/4 "          0.250        6.350        22        0.028        0.711
  24 0.022 0.559
3/8 " 0.375 9.525 18 0.049 1.245
  20 0.035 0.889
  22 0.028 0.711
1/2 " 0.500 12.700 18 0.049 1.245
  20 0.035 0.889
5/8 " 0.625 15.875 16 0.065 1.651
  18 0.049 1.245
  20 0.035 0.889
3/4 " 0.750 19.050 12 0.109 2.769
  14 0.083 2.108
  16 0.065 1.651
  18 0.049 1.245
  20 0.035 0.889
7/8 " 0.875 22.225 14 0.083 2.108
  16 0.065 1.651
  18 0.049 1.245
  20 0.035 0.889
1 " 1 25.400 12 0.109 2.769
  14 0.083 2.108
  16 0.065 1.651
  18 0.049 1.245
1 1/4 " 1.250 31.75 10 0.134 3.404
  12 0.109 2.769
  14 0.083 2.108
  16 0.065 1.651
2 " 2.000 50.800 12 0.109 2.769
  14 0.083 2.108

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Supply Cities Of Stainless Steel 347 And 347H Heat Exchanger Tubes

The cities listed here are where we have supplied our Grade 347H stainless steel Heat Exchanger Tubes in bulk or small orders. Cities from metropolitan to rural areas we can provide SS 347 Heat Exchanger Tubes to satisfy the needs of our clients.

Riyadh, Hong Kong, Howrah, Sydney, Milan, Ahvaz, Nagpur, Busan, Singapore, London, Karachi, Visakhapatnam, New Delhi, Caracas, Jakarta, Vadodara, Bangkok, Ho Chi Minh City, Faridabad, Kolkata, Hanoi, Haryana, Algiers, Port-of-Spain, Jeddah, Ranchi, Aberdeen, Montreal, Santiago, Noida, Bhopal, Dubai, Mumbai, Ulsan, Melbourne, Istanbul, Rajkot, Nashik, Pimpri-Chinchwad, Bogota, Kanpur, Geoje-si, Kuwait City, Toronto, Surat, Secunderabad, Navi Mumbai, Colombo, Jaipur, Chennai, Tehran, Hyderabad, Ludhiana, Chandigarh, New York, Thane, Seoul, Moscow, Chiyoda, Houston, Bengaluru, Gimhae-si, Baroda, Perth, Atyrau, Dammam, Ernakulam, Lahore, Dallas, Madrid, Los Angeles, Courbevoie, Abu Dhabi, Petaling Jaya, Doha, Al Jubail, Gurgaon, Ahmedabad, Mumbai, Edmonton, Jamshedpur, Coimbatore, Pune, Indore, Muscat, Brisbane, Cairo, Kuala Lumpur, Manama, Rio de Janeiro, La Victoria, Al Khobar, Mexico City, Lagos, Ankara, Vung Tau, Sharjah, Calgary, Granada, Thiruvananthapuram.

Documents Provided at the time of Domestic Sales or Export of 347/347H Stainless Steel Heat Exchanger Tubes

Commercial Invoice Heat Treatment Charts
ROHS Certificate Certificate of Compliance/Conformity
Packing List Quality Assurance Plan (QAP)
Fumigation Certificates NABL approved Laboratory Test Reports
Certificate of Origin Raw Material Test Reports
Letter of Guarantee Material Test Certificates

Application Industries We Supply Stainless Steel 347 Heat Exchanger Tubes

347 Stainless Steel Heat Exchanger Tubes For Transport, 347H Stainless Steel Heat Exchanger Tubes For Pharmaceutical Industry, 347H Stainless Steel Heat Exchanger Tubes For Production, 347 SS Heat Exchanger Tubes For Health care, 347 Stainless Steel Heat Exchanger Tubes For Agriculture, Stainless Steel 1.4961 Heat Exchanger Tubes For Waste, 347 Stainless Steel Heat Exchanger Tubes For Factory, Stainless Steel 347H Heat Exchanger Tubes For Real Estate, UNS S34700 Heat Exchanger Tubes For Mining, Stainless Steel 347 Heat Exchanger Tubes For Technology, 347 Stainless Steel Heat Exchanger Tubes For Chemical Industry, Stainless Steel 1.4550 Heat Exchanger Tubes For Construction, 347H Stainless Steel Heat Exchanger Tubes For Rail Transport, 347 Stainless Steel Heat Exchanger Tubes For Pulp and Paper Industry, 347H Stainless Steel Heat Exchanger Tubes For Tertiary Sector, UNS S34709 Heat Exchanger Tubes For Engineering, 347 Stainless Steel Heat Exchanger Tubes For Electronics, 347 Stainless Steel Heat Exchanger Tubes For Food Industry, 347 Stainless Steel Heat Exchanger Tubes For Manufacturing, 347 Stainless Steel Heat Exchanger Tubes For Energy, Stainless Steel 1.4961 Heat Exchanger Tubes For Textile Industry.

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