EN 1.4303 Stainless Steel Seamless Pipe
Certification：ISO, RoHS, IBR, AISI, ASTM, GB, EN, DIN, JIS
Shape：round
Technique：Cold Rolled
Surface Treatment：Sanded /Mirror/Hairline Brushed
Thickness：0.3-30mm
out Diameter：8-219mm
Length：5.8/6m or Custom
Stock：in Stock
Sample：Available
Transport Package：Standard Sea-Worthy Packing
1.4303 stainless Pipe, AISI 305 Seamless Pipe Manufacturer
If you are looking for stainless steel pipes that can be used in normal temperature and pressure and in general corrosive media (such as food processing lines, building water supply and drainage systems, and medical equipment pipelines), GNEE's EN 1.4303 stainless steel seamless pipes are worth considering. The pipe diameter covers DN10-DN300, the wall thickness is 2-8mm, and it complies with the EN 10216-1 standard. It supports cut-to-length cutting and surface polishing (Ra≤0.8μm), and the entire process from cold rolling to water pressure testing is traceable.
AISI 305 seamless stainless steel tubes are available in diameters ranging from DN10 to DN300 and wall thicknesses of 2 to 8 mm, with dimensional tolerances controlled within ±0.1 mm. The inner surface roughness reaches Ra ≤ 1.6 μm, effectively reducing fluid retention and contamination risk in ultra-pure water systems and pharmaceutical mixing lines. The material maintains excellent corrosion resistance, with a service life of over 10 years without visible degradation.
1.4303 austenitic stainless steel seamless tube offers superior cold formability-allowing easy bending and flaring (flaring ratio ≥30% without cracking)-making it ideal for complex piping configurations, especially in custom-shaped fittings for food processing equipment. Compared to duplex or super duplex stainless steel, it requires no special maintenance and costs only 60–70% of 1.4462 duplex pipe, making it a cost-effective option for bulk procurement in civil and light industrial applications.
SS 1.4410 Pipe in Stock
GNEE supports non-standard size customization from φ3.18mm to φ31.75mm, small batch orders can be delivered within 7 days, and the laser cutting accuracy is up to ±0.05mm.
specification
| Property | Typical Range / Description |
|---|---|
| Standard | EN 10216-5, ASTM A312, DIN 17458 |
| Grade | 1.4303 / X5CrNi18-12 / AISI 305 |
| Outside Diameter (OD) | 6 mm – 114.3 mm (custom sizes available) |
| Wall Thickness | 0.5 mm – 6.0 mm |
| Length | 5.8 m / 6 m / 12 m / custom cut-to-length |
| Surface Finish | Annealed & Pickled, Bright Annealed, Polished |
| Tolerance | OD: ±0.5%, Thickness: ±10% |
| Manufacturing Process | Cold Drawn or Cold Rolled |
| Ends | Plain End / Beveled / Threaded |
| Certification | EN 10204 3.1 / 3.2, PED 2014/68/EU, ISO 9001 |
Stainless Steel 305 pipe Chemical Composition
| Element | Content (%) |
| Iron, Fe | 67 |
| Chromium, Cr | 18 |
| Nickel, Ni | 12 |
| Manganese, Mn | ≤ 2 |
| Silicon, Si | ≤ 1 |
| Carbon, C | 0.12 |
| Phosphorous, P | 0.045 |
| Sulfur, S | 0.030 |
Mechanical Properties of AISI 305 cold drawn stainless pipe
| Property | Typical Value (Annealed Condition) |
|---|---|
| Tensile Strength (Rm) | 500 – 700 MPa |
| Yield Strength (Rp0.2) | ≥ 200 MPa |
| Elongation (A5) | ≥ 35% |
| Hardness (HB) | ≤ 215 |
| Modulus of Elasticity | ~200 GPa |
| Density | 7.9 g/cm³ |
| Melting Range | 1400 – 1455°C |
Heat Treatment
| Process | Parameters |
| Solution Annealing | 1,010 – 1,120 °C (1,850 – 2,050 °F), hold ≥ 1 hr per 25 mm thickness, then water quench |
| Stress Relief | 425 – 540 °C (800 – 1,000 °F) |
| Sensitization Range | 870 – 900 °C (1,598 – 1,652 °F) - avoid prolonged exposure |
Applications
| Sector | Typical Use |
| Food & Beverage | Processing equipment, tanks, piping |
| Chemical | Non-corrosive process lines (no halide/chloride) |
| Architecture | Decorative cladding, handrails, structural elements |
| Automotive | Exhaust systems, trim, structural parts |
| Domestic | Appliance housings, kitchen equipment |
| General Engineering | Machined components, fasteners, shafts |
EN 1.4303 Stainless Steel Seamless Pipe price per kg
EN 1.4303 (equivalent to AISI 305 / X5CrNi17-12) stainless steel seamless pipe typically ranges from $3.20 to $5.00+ per kg (or roughly $3,200 to $5,000+ per ton), depending on the wall thickness, outer diameter, and market conditions.
inspection
Each batch of steel pipes undergoes PMI spectral analysis, chemical composition testing, tensile testing, hardness testing, dimensional tolerance checks, and surface quality inspections. Prior to shipment, hydrostatic testing, eddy current testing (ET), or ultrasonic testing (UT) is performed according to customer requirements. An EN 10204 3.1 MTC is provided to ensure heat number traceability and to guarantee corrosion resistance, mechanical properties, and operational reliability.
high quality packaging
We employ professional packaging solutions that meet international maritime standards. After undergoing anti-rust treatment, the steel pipes receive multi-layer protection-including moisture-proof paper, PVC protective film, woven bags, and steel strapping-to prevent scratches, impact damage, and corrosion during transit. Each bundle is clearly marked with specifications, material grade, heat number, quantity, and batch information to ensure full traceability. To meet export requirements, we offer steel racks, wooden crates, or customized packaging suitable for long-distance container transport, ensuring the products arrive safely at the customer's site.
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