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347H Stainless Steel Seamless Tube with Cold-Drawing Technique and Polished Surface Treatment in OD 6-630mm
347H Stainless Steel Seamless Tube with Cold-Drawing Technique and Polished Surface Treatment in OD 6-630mm
347H Stainless Steel Seamless Tube with Cold-Drawing Technique and Polished Surface Treatment in OD 6-630mm
347H Stainless Steel Seamless Tube with Cold-Drawing Technique and Polished Surface Treatment in OD 6-630mm
347H Stainless Steel Seamless Tube with Cold-Drawing Technique and Polished Surface Treatment in OD 6-630mm
347H Stainless Steel Seamless Tube with Cold-Drawing Technique and Polished Surface Treatment in OD 6-630mm
347H Stainless Steel Seamless Tube with Cold-Drawing Technique and Polished Surface Treatment in OD 6-630mm
347H Stainless Steel Seamless Tube with Cold-Drawing Technique and Polished Surface Treatment in OD 6-630mm
347H Stainless Steel Seamless Tube with Cold-Drawing Technique and Polished Surface Treatment in OD 6-630mm
347H Stainless Steel Seamless Tube with Cold-Drawing Technique and Polished Surface Treatment in OD 6-630mm
Specifications
MOQ :
50
Price :
4.85
Model NO. :
347h
Shape :
Round
Technique :
Cold-Drawing
Surface Treatment :
Polished
Specification :
OD 6-630mm
Production Capacity :
500000kgs
Outside Diameter :
1/2"-24"
Thickness :
SCH5 SCH10 SCH40 SCH80 SCH160 XXS
Material Grade :
incone 904L, 254MO,317L and so on
Standard :
ASTM A312,A269
Tolerance Outer Diameter :
+/- 0.2mm
Tolerance Thickness :
+/- 0.02mm
Tolerance Length :
+/- 5mm
Surface Finish :
annealing,pickling,sandblasting
Density :
7.96 g/cm3
Description
347H Stainless Steel Seamless Tube
Alloy 347H (UNS S34709) Stainless Steel Seamless Tube offers excellent resistance to intergranular corrosion and enhanced performance in high-temperature applications.
Product Specifications
Product Name 347H Stainless Steel Seamless Tube
Round Outside Diameter 1/2" - 24"
Thickness Schedule SCH5, SCH10, SCH40, SCH80, SCH160, XXS
Material Grade Special steel including Incone 904L, 254MO, 317L
Raw Material TSING SHAN
Standard ASTM A312, A269
Length Customized to customer requirements
Tolerance Outer Diameter: +/- 0.2mm, Thickness: +/- 0.02mm, Length: +/- 5mm
Surface Treatment Annealing, pickling, sandblasting
Marking LOGO, SIZE, STANDARD, HEAT TREATMENT, Custom requests
Quality Assurance Internal inspection team, strict standards, third-party inspection accepted
Testing Squash test, extended test, water pressure test, heat treatment, NDT
Delivery Large raw material stock ensures timely order completion
Applications
Industrial, exhausting, water, petroleum, chemical, nuclear industry, electric power, shipbuilding, paper making, food, decoration, machinery and construction industries.
Alloy 347H Properties Overview
Alloy 347H stainless steel is stabilized by columbium and tantalum, providing excellent resistance to intergranular corrosion following exposure to temperatures between 800-1500°F (427-816°C). This alloy offers superior creep and stress rupture properties compared to Alloy 304 and 304L.
General Properties
Alloy 347H (UNS S34709) is the higher carbon (0.04-0.10) version developed for enhanced creep resistance and higher strength at temperatures above 1000°F (537°C). The alloy cannot be hardened by heat treatment, only by cold working, and can be easily welded using standard fabrication practices.
Corrosion Resistance
Alloy 347H exhibits good general corrosion resistance comparable to 304 stainless steel. It performs well in nitric solutions, diluted organic acids, and pure phosphoric acid. The alloy resists polythionic acid stress corrosion cracking in hydrocarbon service but does not perform well in chloride solutions or sulfuric acid.
Chemical Composition
Element 347 (%) 347H (%)
Chromium 17.00-19.00 17.00-19.00
Nickel 9.00-13.00 9.00-13.00
Carbon 0.08 max 0.04-0.10
Manganese 2.00 max 2.00 max
Phosphorus 0.045 max 0.045 max
Sulfur 0.03 max 0.03 max
Silicon 0.75 max 0.75 max
Columbium & Tantalum 10 x (C + N) min - 1.00 max 8 x (C + N) min - 1.00 max
Iron Balance Balance
Physical Properties
Density 0.288 lbs/in³ (7.96 g/cm³)
Specific Heat 0.12 BTU/lb-°F (500 J/kg-°K)
Modulus of Elasticity 28.0 x 10⁶ psi (193 GPa)
Thermal Conductivity 133 BTU/hr/ft²/ft/°F (16.3 W/m-°K)
Melting Range 2550-2635°F (1398-1446°C)
Electrical Resistivity 72 Microhm-cm at 20°F
Thermal Expansion Coefficients
Temperature Range Mean Coefficient
68-212°F (20-100°C) 9.2 x 10⁻⁶ in/in °F (16.0 x 10⁻⁶ cm/cm °C)
68-1112°F (20-600°C) 10.5 x 10⁻⁶ in/in °F (18.9 x 10⁻⁶ cm/cm °C)
68-1832°F (20-1000°C) 11.4 x 10⁻⁶ in/in °F (20.5 x 10⁻⁶ cm/cm °C)
Product Gallery
347H Stainless Steel Seamless Tube with Cold-Drawing Technique and Polished Surface Treatment in OD 6-630mm 347H Stainless Steel Seamless Tube with Cold-Drawing Technique and Polished Surface Treatment in OD 6-630mm 347H Stainless Steel Seamless Tube with Cold-Drawing Technique and Polished Surface Treatment in OD 6-630mm 347H Stainless Steel Seamless Tube with Cold-Drawing Technique and Polished Surface Treatment in OD 6-630mm 347H Stainless Steel Seamless Tube with Cold-Drawing Technique and Polished Surface Treatment in OD 6-630mm 347H Stainless Steel Seamless Tube with Cold-Drawing Technique and Polished Surface Treatment in OD 6-630mm
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347H Stainless Steel Seamless Tube with Cold-Drawing Technique and Polished Surface Treatment in OD 6-630mm

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Product Detail
MOQ :
50
Price :
4.85
Model NO. :
347h
Shape :
Round
Technique :
Cold-Drawing
Surface Treatment :
Polished
Contact Supplier
347H Stainless Steel Seamless Tube with Cold-Drawing Technique and Polished Surface Treatment in OD 6-630mm
347H Stainless Steel Seamless Tube with Cold-Drawing Technique and Polished Surface Treatment in OD 6-630mm
347H Stainless Steel Seamless Tube with Cold-Drawing Technique and Polished Surface Treatment in OD 6-630mm
347H Stainless Steel Seamless Tube with Cold-Drawing Technique and Polished Surface Treatment in OD 6-630mm
347H Stainless Steel Seamless Tube with Cold-Drawing Technique and Polished Surface Treatment in OD 6-630mm

TSING SHAN STEEL INDUSTRIAL LIMITED

Verified Supplier
4 Years
jiangsu, wuxi
Since 2012
Business Type :
Manufacturer
Main Products :
Cold Rolled Stainless Steel Sheet, Hot Rolled Stainless Steel Plate, Stainless Steel Checkered Plate
Total Annual :
500,000,000-800,000,000
Employee Number :
100~200
Certification Level :
Verified Supplier
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