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ASTM A213 347H Stainless Steel Heat Exchanger Tube with Cold-Drawing and Polished Finish

최소 주문 수량	50kg
가격	US $4.85-7.25 / kg

제품 상세 정보

모델 번호.	347h	모양	둥근
기술	냉간-인발	표면 처리	우아한
사양	외경 6-630mm	외경	1/2 -24
두께	SCH5 SCH10 SCH40 SCH80 SCH160 XXS	재료 등급	인콘 904L, 254MO, 317L
기준	ASTM A312, A269	길이 공차	+/- 5 밀리미터
외경 허용 오차	+/- 0.2 밀리미터	두께 내성	+/- 0.02mm
밀도	7.96g/cm3	용융 범위	2550~2635°F(1398~1446°C)
열전도율	16.3W/m-°K
강조하다	347H Stainless Steel Tube , Cold-Drawing Heat Exchanger Tube , Polished Seamless Pipe

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ASTM A213 347/347H Stainless Steel Heat Exchanger Tubes for Oil Industry

High-quality 347H stainless steel seamless tubes offering excellent performance in demanding oil industry applications with competitive pricing and superior corrosion resistance.

Product Specifications

Parameter	Specification
Product Name	347H Stainless Steel Seamless Tubes
Round Outside Diameter	1/2" - 24"
Thickness	SCH5, SCH10, SCH40, SCH80, SCH160, XXS
Material Grade	Special steel: Incone 904L, 254MO, 317L and similar alloys
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 requirements
Quality Assurance	Dedicated inspection team, strict standards, accepts customer and third-party inspection
Applications	Industrial, exhaust systems, water, petroleum, chemical, nuclear industry, electric power, shipbuilding, paper making, food processing, decoration, machinery and construction industries
Testing	Squash test, extended test, water pressure test, heat treatment, NDT
Delivery	Large raw material stock ensures timely order completion

Alloy 347 (S34700) is a stabilized stainless steel that offers excellent resistance to intergranular corrosion following exposure to temperatures in the chromium carbide precipitation range from 800 to 1500°F (427 to 816°C). The alloy is stabilized by the addition of columbium and tantalum, providing superior high-temperature mechanical properties and enhanced creep resistance compared to standard 304 and 304L alloys.

Material Properties

General Characteristics

Alloy 347 (UNS S34700) is a columbium-stabilized austenitic stainless steel with excellent general corrosion resistance and superior performance in strong oxidizing conditions. It maintains excellent resistance to intergranular corrosion after exposure to temperatures between 800-1500°F (427-816°C), with good oxidation resistance and creep strength up to 1500°F (816°C).

Corrosion Resistance

Excellent resistance to intergranular corrosion in chromium carbide precipitation range
Superior performance in strongly oxidizing environments up to 1500°F (816°C)
Suitable for nitric solutions and diluted organic acids at moderate temperatures
Resists polythionic acid stress corrosion cracking in hydrocarbon service
Not recommended for chloride solutions or sulfuric acid applications

Chemical Composition

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 max.	0.04 min. - 0.10 max.
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

Physical Properties

Property	Value
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 (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

Thermal Expansion Coefficients

Temperature Range	°F	°C	in/in °F	cm/cm °C
Low Range	68-212	20-100	9.2 x 10⁻⁶	16.0 x 10⁻⁶
Medium Range	68-1112	20-600	10.5 x 10⁻⁶	18.9 x 10⁻⁶
High Range	68-1832	20-1000	11.4 x 10⁻⁶	20.5 x 10⁻⁶

Product Gallery

꼬리표:

ASTM A213 347H Stainless Steel Heat Exchanger Tube with Cold-Drawing and Polished Finish

347H Stainless Steel Tube

Cold-Drawing Heat Exchanger Tube

Polished Seamless Pipe