EN 10217-7 Welded Stainless Steel Tubes

  • Grade: 1.4301, 1.4306, 1.4307, 1.4948, 1.4401, 1.4436, 1.4404, 1.4571, 1.4435, 1.4541, 1.4941, 1.4550, 1.4961, 1.4539, 1.4529, 1.4547, 1.4563, 1.4958, 1.4959, 1.4961, 1.4462, 1.4362, 1.4507, 1.4410, 1.4501
  • Manufacturing Methods: Automatic arc welding, Laser welding
  • OD: 10-1219mm, WT: 1-45mm, L: 6000mm/12000mm

Features

EN 10217-7 Welded Stainless Steel Tubes

Chemical Composition (wt.%)
Steel Grade C Si Mn P S Cr Mo Ni N Others
1.4301 ≤0.07 ≤1.00 ≤2.00 ≤0.045 ≤0.015 17.5-19.5 8.0-10.5
1.4306 ≤0.03 ≤1.00 ≤2.00 ≤0.045 ≤0.015 18.0-20.0 10.0-12.0
1.4307 ≤0.03 ≤1.00 ≤2.00 ≤0.045 ≤0.015 17.5-19.5 8.0-10.5
1.4948 ≤0.12 ≤1.00 ≤2.00 ≤0.045 ≤0.015 17.0-19.0 8.0-11.0
1.4401 ≤0.07 ≤1.00 ≤2.00 ≤0.045 ≤0.015 16.5-18.5 2.0-2.5 10.5-13.5
1.4436 ≤0.07 ≤1.00 ≤2.00 ≤0.045 ≤0.015 16.5-18.5 2.5-3.0 10.5-13.0
1.4404 ≤0.03 ≤1.00 ≤2.00 ≤0.045 ≤0.015 16.5-18.5 2.0-2.5 10.0-13.0
1.4571 ≤0.08 ≤1.00 ≤2.00 ≤0.045 ≤0.015 16.5-18.5 2.0-2.5 10.5-13.5 Ti: 5xC to 0.70
1.4435 ≤0.03 ≤1.00 ≤2.00 ≤0.045 ≤0.015 17.0-19.0 2.5-3.0 12.5-15.0
1.4541 ≤0.08 ≤1.00 ≤2.00 ≤0.045 ≤0.015 17.0-19.0 9.0-12.0 Ti: 5xC to 0.70
1.4941 ≤0.08 ≤1.00 ≤2.00 ≤0.045 ≤0.015 17.0-19.0 9.0-12.0
1.4550 ≤0.08 ≤1.00 ≤2.00 ≤0.045 ≤0.015 16.5-18.5 2.5-3.0 10.5-13.5 Ti: 5xC to 0.70
1.4961 ≤0.10 ≤1.00 ≤2.00 ≤0.045 ≤0.015 17.0-19.0 9.0-12.0
1.4539 ≤0.03 ≤1.00 ≤2.00 ≤0.045 ≤0.015 19.0-21.0 4.0-5.0 24.0-26.0
1.4529 ≤0.02 ≤1.00 ≤2.00 ≤0.035 ≤0.015 19.5-21.5 2.0-2.5 24.0-26.0
1.4547 ≤0.02 ≤0.70 ≤1.00 ≤0.035 ≤0.015 19.5-20.5 4.0-4.5 25.0-26.0 ≤0.11 Cu: 0.5-1.0
1.4563 ≤0.08 ≤0.75 ≤2.00 ≤0.045 ≤0.015 24.0-26.0 4.0-5.0 19.0-22.0 ≤0.15
1.4958 ≤0.10 ≤1.00 ≤2.00 ≤0.045 ≤0.015 17.0-19.0 9.0-12.0
1.4959 ≤0.10 ≤1.00 ≤2.00 ≤0.045 ≤0.015 17.0-19.0 9.0-12.0
1.4462 ≤0.03 ≤1.00 ≤2.00 ≤0.035 ≤0.015 21.0-23.0 2.5-3.5 4.5-6.5 0.10-0.22
1.4362 ≤0.03 ≤1.00 ≤2.00 ≤0.040 ≤0.015 23.0-25.0 0.10-0.60 3.5-5.5 ≤0.20
1.4507 ≤0.02 ≤0.50 ≤1.00 ≤0.035 ≤0.015 24.0-25.0 1.0-1.5 6.0-7.0 0.10-0.20 Cu: 1.5-2.5
1.4410 ≤0.03 ≤1.00 ≤2.00 ≤0.035 ≤0.015 25.0-26.0 3.0-4.0 6.0-7.0 0.10-0.22
1.4501 ≤0.03 ≤1.00 ≤2.00 ≤0.035 ≤0.015 24.0-26.0 3.0-4.0 6.0-8.0 0.10-0.25 Cu: ≤0.75
Mechanical Properties
Steel Grade Rp0.2 (MPa) Rm (MPa) A (%)
1.4301 ≥190 500-700 ≥45
1.4306 ≥180 480-680 ≥40
1.4307 ≥180 450-650 ≥40
1.4948 ≥180 460-660 ≥40
1.4401 ≥200 520-720 ≥40
1.4436 ≥200 520-720 ≥40
1.4404 ≥200 500-700 ≥40
1.4571 ≥210 500-700 ≥40
1.4435 ≥200 500-700 ≥40
1.4541 ≥210 500-700 ≥40
1.4941 ≥210 500-700 ≥40
1.4550 ≥200 520-720 ≥40
1.4961 ≥210 500-700 ≥40
1.4539 ≥230 540-740 ≥35
1.4529 ≥240 550-750 ≥35
1.4547 ≥300 650-850 ≥25
1.4563 ≥240 530-730 ≥35
1.4958 ≥210 500-700 ≥40
1.4959 ≥210 500-700 ≥40
1.4462 ≥450 620-850 ≥25
1.4362 ≥400 600-800 ≥20
1.4507 ≥450 680-880 ≥25
1.4410 ≥550 750-950 ≥20
1.4501 ≥550 750-950 ≥25

Technical Specifications

Specification Value
Standard EN 10217-7 Welded Stainless Steel Tubes
Grade 1.4301, 1.4306, 1.4307, 1.4948, 1.4401, 1.4436, 1.4404, 1.4571, 1.4435, 1.4541, 1.4941, 1.4550, 1.4961, 1.4539, 1.4529, 1.4547, 1.4563, 1.4958, 1.4959, 1.4961, 1.4462, 1.4362, 1.4507, 1.4410, 1.4501
Delivery Condition W0: Welded from hot or cold rolled plate, sheet or strip 1D, 2D, 2E, 2B
W1: Welded from hot rolled plate, sheet or strip 1D, descaled
W1A: Welded from hot rolled plate, sheet or strip 1D, heat treated, descaled
W1R: Welded from hot rolled plate, sheet or strip 1D, bright annealed.
W2: Welded from cold rolled plate, sheet or strip 2D, 2E, 2B, descaled
W2A: Welded from cold rolled plate, sheet or strip 2D, 2E, 2B, heat treated, descaled
W2R: Welded from cold rolled plate, sheet or strip 2D, 2E, 2B, bright annealed
WCA: Welded from hot rolled or cold rolled plate, sheet or strip 1D, 2D, 2E, 2B, heat treated if appropriate, at least 20 % cold formed, heat treated, with re-crystallized weld metal, descaled
WCR: Welded from hot rolled or cold rolled plate, sheet or strip 1D, 2D, 2E, 2B, heat treated if appropriate, at least 20 % cold formed, bright annealed, with re-crystallized weld metal
WG: Ground WP: Polished
MFG. Methods Automatic arc welding, Laser welding
Test Categories TC1, TC2
Density 7.93 – 7.98g/cm³
Dimension OD: 10-1219mm; WT: 1-45mm; L: 6000/12000mm
Inspection Certificate EN 10204 Type 3.1 (Mill Test Certificate), EN 10204 Type 3.2 (Witness Testing or 3rd Party Inspection)
Tests Chemical Analysis, Tensile Test, Flattening Test, Ring Tensile Test, Drift/Ring Expanding Test, Leak tightness Test, Visual & Dimensional Inspection, NDT
Packing

Small diameter packed in plywood box; large diameter packed on plywood pallets.

Application

Pressure Systems: These tubes are extensively used in pressure systems, including boilers, heat exchangers, and condensers, where their ability to withstand high pressure and resist corrosion is critical.
Chemical and Petrochemical Industry: These tubes’ corrosion resistance makes them suitable for transporting chemicals and petrochemicals. They are also used in processing plants to handle acids, alkalis, and other corrosive substances.
Oil and Gas Industry: In the oil and gas sector, these tubes are used for drilling, production, and transportation of oil and gas due to their durability and resistance to harsh environmental conditions.
Food and Beverage Industry: Stainless steel’s sanitary properties make these tubes ideal for processing and transporting food products and beverages in the food and beverage industry.
Pharmaceutical Industry: Due to their high cleanliness and corrosion resistance, these tubes are used in the pharmaceutical industry to manufacture and transport medicines and other pharmaceutical products.
Power Generation: These tubes are used in power plants for various applications, including heat recovery steam generators and steam pipelines, owing to their ability to withstand high temperatures and pressures.
Automotive and Aerospace: In these industries, seamless stainless steel tubes are used for their high strength, lightweight, and resistance to corrosion, which are essential for safety and performance.
Construction and Architecture: Their aesthetic appeal, strength, and durability make these tubes suitable for structural and decorative purposes in construction and architectural applications.

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