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ASTM A312 TP309cb Schedule 40 SS Seamless Pipe High Temperature Tube
ASTM A312 TP309cb Schedule 40 SS Seamless Pipe High Temperature Tube
ASTM A312 TP309cb Schedule 40 SS Seamless Pipe High Temperature Tube
ASTM A312 TP309cb Schedule 40 SS Seamless Pipe High Temperature Tube
Specifications
Brand Name :
Zheheng
Model Number :
TP309cb
Certification :
ISO9001
Place of Origin :
Wenzhou,China
MOQ :
MOQ500kg
Payment Terms :
L/C, D/P, T/T, Western Union
Supply Ability :
1000 Ton/Tons per Month
Delivery Time :
7-15 working days after receiving payment
Packaging Details :
In wooded cases or pallets,or as for clients requirement
WT :
SCH5-XXS
Size :
1/8''-24''
Surface finish :
Polishing, Hair line,Pickling
Price terms :
FOB,CIF,CFR,EXW
Application :
Industry
Ends :
Plain/Bevelled
Description
ASTM A312 TP309cb Schedule 40 SS Seamless Pipe High Temperature Tube
Product Overview
309Cb belongs to the Austenitic series stainless steel, containing niobium element, which can resist high-temperature oxidation, corrosion and deformation caused by thermal cycling. It has good weldability and machinability.
309Cb is widely used in petrochemical, electric power, pharmaceutical and other industries under high temperature conditions. It is often used in the manufacture of high temperature stoves, petroleum equipment and chemical equipment.
Chemical Composition
A312 Grades UNS C Mn P S Si Cr Ni Mo Nb
TP309Cb S30940 0.08 2 0.045 0.03 1 22.0-24.0 12.0-16.0 0.75 10xC min
1.10 max
Mechanical Properties
Grade Tensile Strength (MPa) min Yield Strength 0.2% Proof (MPa) min Elongation (% in 50mm) min Hardness Rockwell B (HR B) max Hardness Brinell (HB) max
309CB 515 205 40 95 217
Physical Properties
Property Condition Value
Density (lb./in²) @ RT 0.29
Modulus of Elasticity in Tension (psi x 10⁶) 29
Specific Heat (BTU/°F/lb.) 32 to 212°F 0.12
Thermal Conductivity (BTU/hr/ft²/ft) 212°F 9
Thermal Conductivity (BTU/hr/ft²/ft) 932°F 10.8
Mean Coefficient of Thermal Expansion (in. x 10⁻⁶ per °F) 32 to 212°F 8.3
Mean Coefficient of Thermal Expansion (in. x 10⁻⁶ per °F) 32 to 600°F 9.3
Mean Coefficient of Thermal Expansion (in. x 10⁻⁶ per °F) 32 to 1,000°F 9.6
Mean Coefficient of Thermal Expansion (in. x 10⁻⁶ per °F) 32 to 1,200°F 10
Electrical Resistivity (micro ohms - cm) at 70°F 39.8
Melting Point Range (°F) 2550 - 2650
Oxidation Resistance - Continuous Service (°F) 2000
Oxidation Resistance - Intermittent Service (°F) 1800
Corrosion Resistance Enhancement
  • Form a stable passivation film on the steel surface. Passivation creates a thin protective film that hinders the anode process, improving chemical stability. Chromium content in the steel increases chromium in the TP309cb stainless steel tube film, enhancing film stability with thickness above 1nm.
  • Obtain a single solid solution structure. For example, 18Cr-8Ni austenitic stainless steel achieves high corrosion resistance only after solution treatment to obtain a single uniform austenitic structure.
  • Increase the electrode potential of the solid solution. Metal corrosion resistance is closely related to medium type, concentration, temperature, pressure, and other conditions, with medium oxidation capacity having the greatest impact.
Product Image
ASTM A312 TP309cb Schedule 40 SS Seamless Pipe High Temperature Tube
Product tags

seamless a213 t91 boiler tube

,

seamless boiler tube a179

,

boiler tube seamless specification
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ASTM A312 TP309cb Schedule 40 SS Seamless Pipe High Temperature Tube

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Product Detail
Brand Name :
Zheheng
Model Number :
TP309cb
Certification :
ISO9001
Place of Origin :
Wenzhou,China
MOQ :
MOQ500kg
Payment Terms :
L/C, D/P, T/T, Western Union
Contact Supplier
ASTM A312 TP309cb Schedule 40 SS Seamless Pipe High Temperature Tube
ASTM A312 TP309cb Schedule 40 SS Seamless Pipe High Temperature Tube

Wenzhou Zheheng Steel Industry Co.,Ltd

Verified Supplier
9 Years
zhejiang, wenzhou
Since 1995
Business Type :
Manufacturer, Distributor/Wholesaler, Agent, Importer, Exporter, Trading Company
Main Products :
Stainless Steel Seamless Pipe, Seamless Stainless Steel Tubing, Stainless Steel Pipe Fittings
Total Annual :
6,000,000-8,000,000
Employee Number :
100~150
Certification Level :
Verified Supplier
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