| Length | 1m ~ 12m/25mm 6m (Standard)/Customized |
| Material | 304/304L, 316/316L, 321, 310S, 430, 904L,Duplex |
| Outer Diameter | 6mm ~ 630mm,10mm ~ 2000mm,0.5mm ~ 120mm |
| Type | TIG, Paw, Laser Welding |
| Wall Thickness | 0.5mm ~ 50mm,0.8mm, 0.1mm ~ 5mm ~ 25mm, |
| MOQ | 1 Ton |
| Delivery Time | 7-10 Days |
| Provide Free Samples | Yes |
| Certifications | ISO 9001, PED 2014/68/EU |
| Specification | Duplex steel: 2205 (S31803), 2507 (S32750) |
| Origin | China |
| HS Code | 7304419000 |
| Production Capacity | 60000 Tons/Year |
Stainless Steel Pipe / Seamless & Welded SS Pipe
Material Standard
Commonly used materials:
304/304L, 316/316L, 321, 310S, 430, 904L.
Duplex steel: 2205 (S31803), 2507 (S32750)
Execution standard:
National standard: GB/T 12771 (welded pipe), GB/T 14976 (fluid pipe), GB/T 13296 (boiler tube)
American Standard: ASTM A312 (general), ASTM A269 (precision tube), ASTM A213 (boiler tube)
European Standard: EN 10217-7, DIN 17456
Other certifications: ISO 9001, PED 2014/68/EU (Pressure Equipment Directive)
Production Process
Seamless Tube: Cold Rolled/Cold Drawn (High Precision), Hot Extruded (Large Diameter Thick Wall Tube)
Welded Pipe: TIG, PAW, laser welding (high precision)
Surface treatment: pickling, polishing (180#-600#), sandblasting, passivation (to enhance corrosion resistance)
Product Core Advantages
Excellent corrosion resistance
304/316 for acid and alkali environments, 316L resistant to chloride corrosion (seawater, chemical media)
Duplex steel (2205) is resistant to stress corrosion cracking, longer service life.
High Strength & High Temperature Resistance
310S high temperature resistance (≤ 1100 ºC), suitable for boilers, heat exchangers
2205 duplex steel is 2 times stronger than 304 and lighter in weight.
Sanitary applications
Inner wall electrolytic polishing (Ra≤0.8μm), FDA/3A compliant, used in food, pharmaceuticals
Precision machining capability
Cold rolled precision tube tolerance ±0.05mm, suitable for semiconductor, hydraulic system
Environmentally friendly and recyclable
100% recyclable material, RoHS/REACH compliant.
Specification range
Typical Application Areas
Petrochemical
Piping systems (ASTM A312), heat exchanger tubes (ASTM A213)
Sulfuric/hydrochloric acid resistant environments (904L or Hastelloy cladding optional)
Medical & Food
Sanitary piping (GMP certified), biopharmaceutical equipment
Dairy/beer delivery tubing (endoscopic polishing)
Energy & Power
Tubes for nuclear power (ASME SB163), boiler superheater tubes
Stainless steel welded tubes for solar racks (outdoor corrosion resistance)
Automotive industry
Exhaust pipe (409/441), fuel pipe (304L)
Precision capillary tubes for sensors (OD 0.5mm~2mm)
Architectural Decoration
Stainless steel handrails (brushed/mirror surface), curtain wall support structure
Underfloor heating pipes (corrosion resistance superior to galvanised pipes)
Emerging in the 1980s,Lecong Steel World draws on over forty years o successful steel trading experience and officially established in 2009.Over the past decade,we are committed to develop a comprehensive supply chain system encompassing 'metal trading-warehousing-logistics-processing and distribution,'offering one-stop solutions for global manufacturing,infrastructure,machinery,construction,fire engineering,municipal projects,steel structure initiatives,and more than 20 steel-using industries.As of today,the park has evolved into the largest wholesale market for metal materials worldwide.Our Global is to empower our clients to gain competitive advantages through cost reduction and improved efficiency,thereby establishing our premium brand image in the global metal industry.
