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ASTM A312 TP309HCB/S30941 Seamless Stainless Steel Pipe For High Temperature Pipe

Name: ASTM A312 TP309HCB/S30941 Seamless Stainless Steel Pipe For High Temperature Pipe
Brand: Wenzhou Zheheng Steel Industry Co.,Ltd
SKU: TP309Hcb
Price: 2,600.00 USD
Availability: InStock

Product Details

Place of Origin: Wenzhou,China

Brand Name: Zheheng

Certification: ISO9001

Model Number: TP309Hcb

Document: Product Brochure PDF

Payment & Shipping Terms

Minimum Order Quantity: MOQ500kg

Packaging Details: In wooded cases or pallets,or as for clients requirement

Delivery Time: 7-15 working days after receiving payment

Payment Terms: L/C, D/P, T/T, Western Union

Supply Ability: 1000 Ton/Tons per Month

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Product Details

Product Description

Highlight: 
                                                                                                                                                                                                                                                S30941 Seamless Stainless Steel Pipe, TP309HCB Stainless Steel Pipe, ASTM A312 SS Seamless Pipe
                              

WT:	SCH5-XXS	Size:	1/8''-24''
Surface Finish:	Polishing, Hair Line,Pickling	Price Terms:	FOB,CIF,CFR,EXW
Application:	Industry	Ends:	Plain/Bevelled

WT:	SCH5-XXS
Size:	1/8''-24''
Surface Finish:	Polishing, Hair Line,Pickling
Price Terms:	FOB,CIF,CFR,EXW
Application:	Industry
Ends:	Plain/Bevelled

ASTM A312 TP309HCB/S30941 Seamless Stainless Steel Pipe For High Temperature Pipe

ASTM A312 TP309HCB/S30941 Seamless Stainless Steel Pipe For High Temperature Applications

Product Characteristics

ASTM A312 TP 309HCB stainless steel pipes are austenitic chromium-nickel stainless steels specifically designed for high-temperature applications. Grade 309HCB is the AISI designation for this material. These stainless steel pipes are high-alloy steels offering superior corrosion resistance due to their high chromium content. SS 309HCB Pipe is a highly alloyed austenitic stainless steel valued for its excellent oxidation resistance, high temperature strength, and creep resistance. Stainless Steel 309HCB Seamless Pipes and SS 309HCB Welded Pipes are widely used across various industries including oil & gas, refineries, fertilizers, heat exchangers, paper & pulp, pharmaceuticals, chemicals, water treatment, dairy, sugar, and food processing.

Chemical Composition

A312 Grades	UNS	C	Mn	P	S	Si	Cr	Ni	Mo	Ti	Nb	N
TP309HCb	S30941	0.04-0.10	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
309HCB	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 Methods

Formation of Stable Passivation Film: Passivation occurs when metal and medium interact to create a thin protective film that hinders the anode process, enhancing chemical stability. Chromium content in steel increases chromium in the passivation film, with higher chromium content improving film stability. The corrosion resistance of stainless steel primarily results from a chromium-rich oxide film approximately 1nm or thicker. Medium type and other steel elements influence passivation film stability.
Single Solid Solution Structure: Materials like 18Cr-8Ni austenitic stainless steel achieve high corrosion resistance only after solution treatment produces a single, uniform austenitic structure.
Increased Electrode Potential: Enhancing the electrode potential of the solid solution improves corrosion resistance. Metal corrosion resistance closely relates to medium type, concentration, temperature, pressure, and other conditions, with medium oxidation capacity having the greatest impact.

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