Spiral wound finned tubes or crimped finned tubes spiral wound on the base tube, without welding, but spot welding at the end.
Material of spiral wound finned tube or crimped finned tube: the finned strip can be copper, carbon steel, stainless steel, non-ferrous metal tube and fin, or it can be root welded or completely welded.
Spiral crimped stainless steel finned tube.
Spiral tension wound finned tubes for air coolers.
Due to the high corrosion resistance of stainless steel, when the environment has certain corrosivity or cleanliness, such as climate industry, heating, drying and cooling, stainless steel crimped fin tubes can be widely used. Usually used for finned tube heat exchangers. The maximum working temperature is 180 â??.
Compared with L-shaped finned tubes, spiral wound finned tubes or crimped finned tubes provide higher air side turbulence and heat transfer due to fins curling.
Material standard of crimped fin tube: both base tube and fin can be carbon steel and stainless steel
Carbon steel: A179, A192, SA210 Gr A1/C, A106 Gr B Stainless steel: TP304/TP304L, TP316/TP316L
Specifications Type : Finned Material : Copper Thickness : 5-10mm Application : Industrial Color ; Brown Features : Durable, High Strength, Rustproof Grade : Superior
321 stainless steel is an austenitic stainless steel that contains titanium as a stabilizing element. This element helps to prevent chromium carbide precipitation, which can occur during high-temperature service, making it ideal for use in high-temperature applications. Some of the key properties of 321 stainless steel include: High-temperature resistance: 321 can withstand high temperatures up to 870�°C (1600�°F) without losing its strength or corrosion resistance properties, making it ideal for use in applications such as furnace parts and exhaust systems. Corrosion resistance: 321 offers excellent resistance to corrosion, including aqueous corrosion and stress corrosion cracking. Strength and toughness: 321 has good strength and toughness, making it suitable for use in demanding applications. Fabricability: 321 is easily formable using standard methods, and can be welded using common welding techniques. Some of the common applications for 321 stainless steel include: Exhaust systems in automobiles, aircraft, and industrial equipment High-temperature furnace parts, such as burners and heating elements Chemical processing equipment Jet engine parts Heat exchangers Overall, 321 stainless steel is a highly reliable and versatile material that is well-suited for use in high-temperature applications where superior corrosion resistance and strength are required. The following are some of the commonly used international standards for 321 stainless steel: ASTM A240/A240M: Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications ASTM A276/A276M: Standard Specification for Stainless Steel Bars and Shapes EN 10088-2: Stainless steels - Part 2: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes EN 10095: Heat resisting steels and nickel alloys JIS G4304: Hot-rolled stainless steel plate, sheet and strip JIS G4305: Cold-rolled stainless steel plate, sheet and strip GB/T 4237: Hot rolled stainless steel plate, sheet and strip GB/T 3280: Cold rolled stainless steel plate, sheet and strip We can provide the following form:321 stainless steel coil; 321 stainless stee strip;321 stainless stee plate; 321 stainless steel sheets; 321 stainless steel tubes; 321 stainless steel pipe; 321 stainless steel flat; 321 stainless steel bar Applied to open-air machines, heat-resistant parts of building materials and parts with difficulty in heat treatment in chemical, coal and petroleum industries that require high resistance to intergranular corrosion 1. Petroleum waste gas combustion pipeline 2. Engine exhaust pipe 3. Boiler shell, heat exchanger, heating furnace parts 4. Silencer parts for diesel engines 5. Boiler pressure vessel 6. Chemical transport vehicle 7. Expansion joints 8. Spiral welded pipes for furnace pipes and dryers
Hindalco's cold rolled coils are precision-finished to match international standards. They have good shape, high tolerance, versatility and blemish-free surfaces. They are used in commercial and general engineering applications such as bus bodies, cladding and fan blades. The company meets the demands of its ever-growing clientele with continuous upgrades and process improvement. Thickness : 0.16 mm to 4 mm Width : 50 mm to 1600 mm Alloys : 1050/1100/1070/1200/3103/3105/3003/5052/5005/5754/5083/8011
STM A53/ASME SA53(A/B), ASTM A106/ASME SA106(A/B/C), ASTM A179/ASME SA179, ASTM A192/ASME SA192, ASTM A210/ASME SA210(A1/C), ASTM A333 ASME SA333(Gr.1/Gr.6), ASTM A213/ASME SA213(T11/ T12/ T22/ T5/ T23), ASTM A335/ASME SA335(P11/ P12/ P22/ P5/ P23), ASTM A335/ASME SA335, API 5L(B/ X42/ X52) , API 5CT (J55/ N80-1 for Tubing), EN 10216-2(P195GH, P235GH, P265GH, 16Mo3, 13CrMo45, 10CrMo910) EN 10216-1, EN 10216-3, EN 10255 S195T, EN 10297-1 E355, BS 3059 PI Gr320, BS 3059 PII(Gr360, Gr 440, Gr620-460, Gr622-490) DIN17175 (St35.8, St45.8, 15Mo3, 13CrMo44, 10CrMo910), DIN2440 St33.2, DIN1629/ DIN2448(St37.0, St44.0, St52.0) JIS G3445, JIS G3461,JIS G3462, JIS G3454. Package: bare packing/bundle packing/wooden carton packing Size range: Out diameter: 10.0-219.1mm Wall thickness: 1.0-35.0mm Max length: 24m.
Welded steel tubo galvanizado 1. Material A) steel grade: q195, q235, q345 etc. 5. Welding technology: longitudinal erw 6. Application: building materials, machine structure, agriculture equipment, water and gas pipes etc. 7. Packing: packing in bundle with steel strips; with seaworthy package at the end; could be done with your requirement. 8. Delivery time: usually within 10-30 days after receipt of deposit, asap 9. Trade terms: fob, cfr, cif etc. 10. Payment terms: t/t, l/c etc. 11. Loading port: xingang , tianjin 12. Original place: tianjin, china 13. Company information A) name: reliance metal resource co., ltd B) type: manufacture and trading company C) supply ability: 180, 000 tons per year Packing in bundle with steel strips; with seaworthy package at the end; could be done with your requirement for welded steel tubo galvanizado
Hollow Rectangular Steel Tube 1. Material a) Steel Grade: Q195, Q235, Q345 etc. b) Material Type: Available in cold rolled and hot rolled 2. Size a) W.T: 1.0mm-20mm b) Diameter: 15*20mm-400*600mm c) Length: 5.8m-12m, other sizes could be negotiated 3. Fabrication: 3PE, black and color painting, anti-rust oil, varnish painting, zinc-coating, steel stamp, drilling, diameter reducing etc. 4. Certification: BV, IAF, SGS,COC, ISO etc. 5. Welding Technology: Longitudinal ERW 6. Application: Building materials, machine structure, agriculture equipment, water and gas pipes etc. 7. Packing: Packing in bundle with steel strips; with seaworthy package at the end; could be done with your requirement. 8. Delivery Time: Usually within 10-30 days after receipt of deposit, ASAP 9. Trade Terms: FOB, CFR, CIF etc. 10. Payment Terms: T/T, L/C etc. 11. Loading Port: Xingang , Tianjin 12. Original Place: Tianjin, China 13. Company Information a) Name: Reliance Metal Resource Co., Ltd b) Type: Manufacture and trading company c) Supply Ability: 180,000 tons per year Packing in bundle with steel strips; with seaworthy package at the end; could be done with your requirement for Hollow Rectangular Steel Tube.
Supplier: Steel tube, finned tube
Buyer: Sea cucumber, abalone
Steel Med Tubes : Material : Solid drawn Seamless Deoxidized Non-arsenical Half hard Tempered Degreased Conforming to HTM 2022 standards Specifications : Fittings used for connecting copper tubing are made of Copper and brazed type Connection as per BS: 864: Part 2:1983 All pipe-jointing fittings are made of Copper as per BS 864 Standards and suitable for a steam of working pressure of 17 bars and especially made for brazed socket type connections. Shut off valves suitable for the pipe diameter are of non lubricated 90° turn lever & having stainless steel hard chrome brass body with PTFE seat and S.S. ball. Sizes will be appropriate for copper pipes with screw threaded ends and brass adapter.All valves are pneumatically tested for twice the working pressure and degreased for medical gas service before supply. Features : Cost effective Convenient Alarm system for timely detection Endurance against high pressure Easy to maintain
Astm a53 welded erw black steel tube Size10mm-457mm Wall thickness 0.5mm-20mm Length1m-12m , by customers requiremnts Internatioanal standardIso 9000-2001 StandardsAstma53, bs1387-1985, gb/t3091-2001, en39, bs1139 MaterialsQ195, q215, q235, q345 Product categoryMetallurgy, mineral &energy TechniqueWelded Packing1.Big od:in bulk 2.Small od:packed by steel strips 3.Woven cloth with 7 slats 4.According to the requirements of customers UsageMechanical&manufacture, steel strcuture, Shipbuilding, bridging, automobile chassis Main marketMiddle east, africa, asia and some uropean country and america , australia Country of originChina Productivity20000 metric tons pet month RemarkPayment terms :T/T , L/C Terms of trade :fob , cfr, cif , Minimum order : 10 tons Lead time :on or before 20 days . Addition: 1. Special design available according to clients' requirements. 2. Anti-corrosion and high-temperature resistant with black painting. 3. All the production process are made under the iso9001:2000 strickly.
