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Alloy 347H (UNS S34709) Stainless Steel Seamless Tube 347h Stainless Steel Properties

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Alloy 347H (UNS S34709) Stainless Steel Seamless Tube 347h Stainless Steel Properties

China Alloy 347H (UNS S34709) Stainless Steel Seamless Tube 347h Stainless Steel Properties supplier
Alloy 347H (UNS S34709) Stainless Steel Seamless Tube 347h Stainless Steel Properties supplier Alloy 347H (UNS S34709) Stainless Steel Seamless Tube 347h Stainless Steel Properties supplier Alloy 347H (UNS S34709) Stainless Steel Seamless Tube 347h Stainless Steel Properties supplier

Large Image :  Alloy 347H (UNS S34709) Stainless Steel Seamless Tube 347h Stainless Steel Properties

Product Details:

Place of Origin: Shanghai
Brand Name: Bao Steel
Certification: SGS ISO
Model Number: 347h

Payment & Shipping Terms:

Minimum Order Quantity: 1Ton
Price: 15.5 USD/KG
Packaging Details: EXPORT PACKING
Delivery Time: 7 DAYS
Supply Ability: 200TONS
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Detailed Product Description
OD: 6-630mm Thickness: 0.5-60MM
Length: 6m Surface: NO.1
Type: Cold Rolled

Alloy 347H (UNS S34709) Stainless Steel Pipe 347h Stainless Steel Properties

Alloy 347/347H

   Stainless Steel Plate

Our  Company stocks Alloy 347 stainless steel plate in thicknesses from 3/16" through 4". A high carbon            version, Alloy 347H (UNS S34709) stainless steel plate, can also be ordered in the same thickness range.

Available thicknesses for Alloy 347/347H:

3/16" 1/4" 5/16" 3/8" 1/2" 5/8" 3/4" 7/8" 1" 1 1/8"
4.8mm 6.3mm 7.9mm 9.5mm 12.7mm 15.9mm 19mm 22.2mm 25.4mm 28.6mm
 
1 1/4" 1 1/2" 1 3/4" 2" 2 1/4" 2 1/2" 2 3/4" 3" 3 1/2" 4"
31.8mm 38.1mm 44.5mm 50.8mm 57.2mm 63.5mm 69.9mm 76.2mm 88.9mm 101.6mm

Alloy 347 (S34700) is stabilized stainless steel plate which offers as its main advantage an excellent resistance to intergranular corrosion following exposure to temperatures in the chromium carbide precipitation range from 800 to 1500°F (427 to 816°C). Alloy 347 stainless steel plate is stabilized by the addition of columbium and tantalum.

Alloy 347 stainless steel plate is also advantageous for high temperature service because of its good mechanical properties. Alloy 347 stainless steel plate offers higher creep and stress rupture properties than Alloy 304 and, particularly, Alloy 304L, which might also be considered for exposures where sensitization and intergranular corrosion are concerns.

General Properties

Alloy 347 (UNS S34700) is columbium stabilized austenitic stainless steel plate with good general corrosion resistance and somewhat better resistance in strong oxidizing conditions than 321 (UNS S32100). It has excellent resistance to intergranular corrosion after exposure to temperatures in the chromium carbide precipitation range of 800 – 1500°F (427 – 816°C). The alloy has good oxidation resistance and creep strength to 1500°F (816°C). It also possesses good low temperature toughness.

Alloy 347H (UNS S3409) stainless steel plate is the higher carbon (0.04 – 0.10) version of the alloy. It was developed for enhanced creep resistance and for higher strength at temperatures above 1000°F (537°C). In most instances, the carbon content of the plate enables dual certification.

Alloy 347 stainless steel plate cannot be hardened by heat treatment, only by cold working. It can be easily welded and processed by standard shop fabrication practices.


Corrosion Resistance

Alloy 347 stainless steel plate exhibits good general corrosion resistance that is comparable to 304. It was developed for use in the chromium carbide precipitation range of 800 – 1500°F (427 – 816°C) where un-stabilized alloys such as 304 are subject to intergranular attack. In this temperature range, the overall corrosion resistance of Alloy 347 stainless steel plate is superior to Alloy 321 stainless steel plate. Alloy 347 also performs somewhat better than Alloy 321 in strongly oxidizing environments up to 1500°F (816°C).

The alloy can be used in nitric solutions, most diluted organic acids at moderate temperatures and in pure phosphoric acid at lower temperatures and up to 10% diluted solutions at elevated temperatures. Alloy 347 stainless steel plate resists polythionic acid stress corrosion cracking in hydrocarbon service. It can also be utilized in chloride or fluoride free caustic solutions at moderate temperatures.

Alloy 347 stainless steel plate does not perform well in chloride solutions, even in small concentrations, or in sulfuric acid.

 

Chemical Analysis

Weight % (all values are maximum unless a range is otherwise indicated)

Element 347 347H
Chromium 17.00 min.-19.00 max. 17.00 min.-19.00 max.
Nickel 9.00 min.-13.00 max. 9.00 min.-13.00 max.
Carbon 0.08 0.04 min.-0.10 max.
Manganese 2.00 2.00
Phosphorus 0.045 0.045
Sulfur 0.03 0.03
Silicon 0.75 0.75
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 (32 – 212°F)
500 J/kg-°K (0 – 100°C)

Modulus of Elasticity

28.0 x 106 psi
193 GPa

 

Thermal Conductivity 200°F (100°C)

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
Mean Coefficient of Thermal Expansion
Temperature Range  
°F °C in/in °F cm/cm °C
68-212 20-100 9.2 x 10-6 16.0 x 10-6
68-1112 20-600 10.5 x 10-6 18.9 x 10-6
68-1832 20-1000 11.4 x 10-6 20.5 x 10-6

Products Photo

 Alloy 347H (UNS S34709) Stainless Steel Seamless Tube 347h Stainless Steel PropertiesAlloy 347H (UNS S34709) Stainless Steel Seamless Tube 347h Stainless Steel PropertiesAlloy 347H (UNS S34709) Stainless Steel Seamless Tube 347h Stainless Steel Properties 

Contact Details
JIANGSU MITTEL STEEL INDUSTRIAL LIMITED

Contact Person: Gao Ben

Tel: +8618068357371

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