Stainless steel welded pipes used in mechanical structures usually refer to special stainless steel pipes for mechanical structures manufactured by arc welding or other automatic welding methods. Usage: Mechanical parts and structural parts for automobiles, motorcycles, bicycles, machinery, furniture, decoration, etc..
According to the main use in industry, stainless steel structure tube is divided into two categories: stainless acid-resistant steel structure tubes and heat-resistant steel.
A Stainless acid-resistant steel structure tube is divided into stainless steel and acid-resistant steel. The steel that can resist corrosion in the air is called stainless steel structure tube; Steel that can resist corrosion in a variety of corrosive media is called acid-resistant steel. Stainless steel is not necessarily acid-resistant, but acid-resistant steel has good rust performance.
In addition to the five elements (C, Si, Mn, P, S), this kind of structural tube mainly contains chromium and nickel alloy elements. Such as chromium steel (Cr13 type), chromium-nickel steel (18-8 type); And on the basis of chromium-nickel steel containing molybdenum, niobium, titanium, nitrogen, and other elements in one or more.
The round, plate, belt, wire, and tube made by this kind of structural tube are widely used in chemical equipment, medical equipment, food industry equipment, family cabinets, and decoration of hotels and restaurants.
B, Heat-resistant steel is divided into heat-resistant and non-peeling steel two kinds. At high temperatures resistance to medium erosion without peeling steel is called peeling steel; A structural tube that is resistant to medium erosion at high temperature and has sufficient strength without peeling is called a heat-resistant steel structure tube.
In addition to chromium and nickel in stainless acid-resistant steel, such structural tubes also contain one or more alloying elements such as aluminum (Al), tungsten (W), cobalt (Co), and vanadium (V). Its circles, plates, belts, and tubes are widely used in petrochemical equipment, power station boilers, gas turbines, and industrial heating furnace components, as well as components working at high temperatures.
Introduction
Item | Stainless steel Tube/Pipe for structures | ||||||||||
Standard | AISI, ASTM, DIN, JIS, GB, JIS, SUS, EN, etc | ||||||||||
Material | 210 202 301 304 304L 316 316L 321 309S 310S 904L 410 420 430 , etc | ||||||||||
Surface | Polished, annealed, bright, mirror, matte | ||||||||||
Detection | Third party inspection is acceptable | ||||||||||
Type | ERW,Efw,Seamless,Spiral Welded | ||||||||||
Container size | 20ft GP:5898mm(Length)x2352mm(Width)x2393mm(High) 24-26CBM 40ft GP:12032mm(Length)x2352mm(Width)x2393mm(High) 54CBM 40ft HC:12032mm(Length)x2352mm(Width)x2698mm(High) 68CBM |
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size | Length | 6m or customized according to customer requirements | |||||||||
Outer diameter | OD: 12.7mm~630mm, WT: 1mm-150mm(SCH10~XXS) | ||||||||||
Delivery time | Within 5-30 days after receiving the prepaid | ||||||||||
Package | Plywood Case/Pallet or Other Export Package Suitable for Long Distance Shipping |
Production process
ASTM A270(dimension tolerance table)
Outside Diameter | Thickness | Length | |
< 25.40mm | ±0.13mm | ±10.00% | OD>101.60mm+3.20mm -0mm |
≥25.40mm~50.80mm | ±0.20mm | ||
≥50.80mm~76.20mm | ±0.25mm | ||
≥76.20mm~101.60mm | ±0.38mm | OD>101.60mm+4.80mm -0mm | |
≥101.60mm~139.70mm | ±0.38mm | ||
≥139.70mm~203.20mm | ±0.76mm | ||
≥203.20mm~304.80mm | ±1.27mm |
Xinhang Special Material Co., Ltd. Hangzhou Branch is famous China 304 Acid And Heat Resistant Structural Stainless Steel Welded Pipe suppliers and OEM/ODM 304 Acid And Heat Resistant Structural Stainless Steel Welded Pipe manufacturers, founded in 2007 and moved to Longyou Economic Development Zone, Zhejiang Province, in 2022. It covers an area of 130,000 square meters, more than 30 production lines, 300 workers, 20 R&D people, 30 inspection people and an annual output of 50,000 tons.
It has passed ISO9001:2008 quality management system, PED 97/23/EC EU Pressure Equipment Directive certification, China Special Equipment Manufacturing License (Pressure Tube) TS certification, ASME certification, provincial enterprise standardization management system, ISO14000:2004 environment management system, cleaner production (green enterprise), and a series of certifications, as well as China Classification Society (CCS), American Bureau of Shipping (ABS), British Register of Shipping (LR), Deutsche Veritas (GL), Bureau Veritas Society (BV), Det Norske Veritas (DNV), and Korean Register of Shipping (KR) factory certification.
The main products include stainless steel pipes, pipe fittings, flanges, valves, etc., which are widely used in petroleum, chemical industry, nuclear industry, smelting, shipbuilding, pharmaceuticals, food, water conservancy, electric power, new energy, mechanical equipment, and other fields. The company adheres to the corporate tenet of "quality for survival, reputation for development" and wholeheartedly serves every customer to create a win-win situation.
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