Boiler Heat Exchanger TP347H Stainless Seamless Pipe

Brand Name:HDT
Certification:ISO9001 , SGS , TUV , ASME , EN
Minimum Order Quantity:5 tons
Delivery Time:30~50 days
Place of Origin:China
Packaging Details:Sea worthy Packing for Export
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Address: Rm. 1202, Buildiing A, Wanda Plaza, Zhangjiagang, Jiangsu, China
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Boiler Heat Exchanger Used Stainless Steel Seamless Tube TP347H


Zhangjiagang Hua Dong Energy Technology Co., Ltd is engaged in stainless steel seamless pipe and tube.

Our stainless steel seamless pipe and tube was width used in Mining, Energy, Petrochemical, Chemical Industry, Food plant, Paper plant, Gas and Fluid Industry etc.


ASTM A213 TP347H Stainless Steel Seamless Tube Physical Properties

In the Annealed Condition at -20°F to +100°F
AlloyUNS DesignDensity kg/dm³Modulus of Elasticity (x106 psi)Mean Coefficient of Thermal Expansion (IN./IN./°F x 10-6)Thermal Conductivity (BTU-in/ft2-h-°F)
347S347007.98299.2
347HS347097.98299.2
347HFGS34710299.2

ASTM A213 TP347H Stainless Steel Seamless Tube Mechanical Properties

In the Annealed Condition at -20°F to +100°F
Tensile StrengthTensile StrengthYield StrengthYield Strength
AlloyUNSSpecMPaksiMPaksiElongation in 2 inches (min.) %Grain Size Req.Harndess HBW
347S34700ASTM A213515752053035192
347HS34709ASME SA 2135157520530357 or coarser192
347HFGS347105508020530357 or coarser192


Why 347h SS is used for Chemical Processing?

The grade 347 is specific austenitic stainless steel made for repeated intermittent exposure to temperatures above 800 degrees Celsius. These are modifications of 304 stainless steel. They are similar to the 321 grade in some mechanical properties but different in that it has columbium in the composition. The material is corrosion resistant to most corrosive media in medium to high temperatures.


This is an important aspect required at chemical processing. The material has minimum yield strength of 205MPa and the minimum tensile strength at 515MPa. This allows the material to withstand high pressure at temperatures above 850 degrees Celsius. The pipes and components also have a good elongation and high hardness. The 304 material can undergo intergranular corrosion above temperatures 850 F. The 347H has a higher carbon content and heat resistant so that it can perform in this temperature range.


The combination of the pressure containment capacities, the strength, hardness, heat resistance and corrosion resistance make it applicable for chemical processing. These properties also make the material used in other high corrosive, high heat applications such as the boiler tubes and casings, radiant super heaters, heat exchanger tubes, oil and gas refineries and aircraft exhaust stacks.



ASTM A213 TP347H Stainless Steel Seamless Tube Application Industries

  • Off-Shore Oil Drilling Companies
  • Power Generation
  • Petrochemicals
  • Gas Processing
  • Specialty Chemicals
  • Pharmaceuticals
  • Pharmaceutical Equipment
  • Chemical Equipment
  • Sea Water Equipment
  • Heat Exchangers
  • Condensers
  • Pulp and Paper Industry

ASTM A213 TP347H Stainless Steel Seamless Tube Test Certificates


  • EN 10204/3.1B,
  • Raw Materials Certificate
  • 100% Radiography Test Report
  • Third Party Inspection Report, etc

China Boiler Heat Exchanger TP347H Stainless Seamless Pipe supplier

Boiler Heat Exchanger TP347H Stainless Seamless Pipe

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