En 10216-5/DIN 17456 304/316L Stainless Steel Seamless Pipes for High-Temp Industry

• Customization: Available
• After-sales Service: Honor Integrity, Take Service as a Pride.
• Warranty: 1 Years
• Model NO.: EN 10216-5/DIN 17456 304/316L Stainless Steel Pipe
• Type: Seamless
• Technique: Hot Rolled/Cold Drawn
• Material: Stainless Steel
• Surface Treatment: Solution Treatment
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose, Heat Transfer
• Section Shape: Round/Customized
• Steel Grade: 202,304, 304L,304h,304ln,316ln, 309S,310S,316,316L
• Size: 1/4"-4" , Customized
• Thickness: 1-150mm/Customized
• Shape: Round/Customized
• Process: Solution Treatment
• Condition: Hot Finished/Cold Finished
• End: Plain End/Bevel End
• Test: BV, SGS Is Available
• Stock: Size Can Customized
• Processing: Customized
• Ends: Plain Ends, Beveled Ends
• Used: Factory, Decoration, Food
• Packing: Standard Export Packing
• Delivery Time: 10-30 Working Days
• MOQ: 1
• Transport Package: Woven Bag/Wooden Case
• Specification: SCH 5S-SCH160
• Trademark: EZS
• Origin: China
• Production Capacity: 10, 000, 000 Kgs/Year

Product Description

Product Description

1. Standard & Material Specifications

• EN 10216-5: European standard for stainless steel tubes for pressure purposes.
• DIN 17456: Historical German standard (superseded by EN 10216-5 but still referenced in some contexts).
• Material Grades:

  Grade	EN 10216-5 Designation	Chemical Composition (Key Elements, %)
  304	X5CrNi18-10 (1.4301)	18-20% Cr, 8-10.5% Ni, ≤0.07% C
  316L	X2CrNiMo17-12-2 (1.4404)	16-18% Cr, 10-14% Ni, 2-3% Mo, ≤0.03% C

 

2. Mechanical Properties & Pressure Resistance

Property	304 (1.4301)	316L (1.4404)
Tensile Strength	≥500 MPa (72.5 ksi)	≥480 MPa (69.6 ksi)
Yield Strength (0.2%)	≥210 MPa (30.5 ksi)	≥170 MPa (24.7 ksi)
Elongation at Break	≥35%	≥40%
Max Service Temperature	-200°C to 800°C (-328°F to 1472°F)	-200°C to 400°C (-328°F to 752°F)
Pressure Rating	Depends on wall thickness (e.g., DN100, Sch40: ~100 bar)	Similar to 304, but better in corrosive media

 

3. Manufacturing & Heat Treatment

1. Process Flow:
   • Billet Heating: 1100-1250°C for hot piercing (Mannesmann process).
   • Cold Working: Drawing/rolling to achieve precision dimensions (OD: 6-610 mm, wall thickness: 0.5-50 mm).
   • Heat Treatment:
     • 304: Solution annealing (1040-1100°C, water-quenched) to dissolve carbides.
     • 316L: Solution annealing (1020-1100°C) to ensure low carbon content (avoids sensitization).
2. Surface Finishing:
   • Pickling :to remove oxide scale; optional electropolishing for hygienic applications (e.g., food industry).

4. Corrosion Resistance & Applications

• 304 (1.4301):
  • Resistant to atmospheric corrosion, mild acids, and organic compounds.
  • Applications: Food & beverage processing, architectural structures, heat exchangers (non-chloride environments).
• 316L (1.4404):
  • Enhanced resistance to chlorides, seawater, and industrial chemicals (Mo content).
  • Applications: Marine engineering, pharmaceutical equipment, chemical processing (e.g., saltwater systems, acids like sulfuric acid).

 

Detailed Photos

 

 

Processing of Production