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316L Forged Weld Neck Flange ANSI B16.5 Class 300 ISO Certified PMI Tested RTJ Face 1 to 8 Inch

316L Forged Weld Neck Flange ANSI B16.5 Class 300 ISO Certified PMI Tested RTJ Face 1 to 8 Inch

MOQ: 5 Pieces
Price: USD 15-200 / Piece
Standard Packaging: Export-grade plywood case with anti-rust VCI paper and flange end protectors, custom labeling available
Delivery Period: 10-20 working days
Payment Method: T/T,L/C,PayPal
Supply Capacity: 3000 Pieces per Month
Detail Information
Place of Origin
Zhejiang, China
Brand Name
YUHAO
Certification
ISO 9001:2015, PED 2014/68/EU, CE
Model Number
WNRF-300-316L
Standard:
ANSI B16.5
Size Range:
1 To 8 Inch (DN25-DN200)
Face Type:
RTJ (Ring Type Joint)
Pressure Rating:
Class 300
Flange Type:
Weld Neck Flange
Material:
ASTM A182 F316L
Highlight:

ISO 9001 PED Certified Flange

,

PMI Tested 316L Weld Neck

,

Hydrostatic Pressure Test Verified

Product Description
Stainless Steel Weld Neck Flange ANSI B16.5 Class 300 316L Forged ISO Certified PMI Tested RTJ Face 1 to 8 Inch

Stainless Steel Weld Neck Flange – ISO Certified & Fully Tested
WNRLN manufactures high-integrity stainless steel weld neck flanges backed by rigorous quality certification and comprehensive material testing. Designed for critical high-pressure applications, our 316L weld neck flanges deliver exceptional reliability with full documentation and multi-level inspection protocols.

Quality Certifications
  • ISO 9001:2015 Certified: Our manufacturing facility operates under a fully certified quality management system with annual third-party audits
  • PED 2014/68/EU Compliant: Products meet European Pressure Equipment Directive requirements for CE marking
  • EN 10204 3.1 MTC: Full material test certificates documenting chemical composition and mechanical properties for each heat
Testing & Inspection Protocol
  • PMI (Positive Material Identification): 100% PMI testing using X-ray fluorescence (XRF) analyzer to verify alloy composition and prevent material mix-up
  • Hydrostatic Pressure Testing: Each flange tested at 1.5x rated working pressure to verify structural integrity and leak-tightness
  • Ultrasonic Testing (UT): Volumetric examination to detect internal discontinuities in forged material per ASTM A388
  • Dimensional Inspection: Full dimensional verification against ANSI B16.5 tolerance tables using calibrated CMM equipment
  • Intergranular Corrosion Test: ASTM A262 Practice E testing available upon request for sensitization resistance verification
Technical Specifications
Standard ANSI/ASME B16.5
Pressure Class Class 300 (PN50)
Material ASTM A182 F316L
Size Range 1" to 8" (DN25 to DN200)
Face Type Ring Type Joint (RTJ)
Manufacturing Process Closed-Die Forging + Solution Annealed
NDT Available UT, PT, MT, Radiography
Applications

Engineered for demanding environments including chemical processing plants, offshore oil and gas platforms, pharmaceutical manufacturing, LNG terminals, and high-pressure steam systems where certified material integrity and tested performance are mandatory requirements.

Documentation Package
Standard shipment includes: Material Test Certificate (EN 10204 3.1), PMI Test Report, Dimensional Inspection Report, Certificate of Conformance, and packing list. Additional NDT reports available on request.

316L Forged Weld Neck Flange ANSI B16.5 Class 300 ISO Certified PMI Tested RTJ Face 1 to 8 Inch 0

316L Forged Weld Neck Flange ANSI B16.5 Class 300 ISO Certified PMI Tested RTJ Face 1 to 8 Inch 1

316L Forged Weld Neck Flange ANSI B16.5 Class 300 ISO Certified PMI Tested RTJ Face 1 to 8 Inch 2

Products
PRODUCTS DETAILS
316L Forged Weld Neck Flange ANSI B16.5 Class 300 ISO Certified PMI Tested RTJ Face 1 to 8 Inch
MOQ: 5 Pieces
Price: USD 15-200 / Piece
Standard Packaging: Export-grade plywood case with anti-rust VCI paper and flange end protectors, custom labeling available
Delivery Period: 10-20 working days
Payment Method: T/T,L/C,PayPal
Supply Capacity: 3000 Pieces per Month
Detail Information
Place of Origin
Zhejiang, China
Brand Name
YUHAO
Certification
ISO 9001:2015, PED 2014/68/EU, CE
Model Number
WNRF-300-316L
Standard:
ANSI B16.5
Size Range:
1 To 8 Inch (DN25-DN200)
Face Type:
RTJ (Ring Type Joint)
Pressure Rating:
Class 300
Flange Type:
Weld Neck Flange
Material:
ASTM A182 F316L
Minimum Order Quantity:
5 Pieces
Price:
USD 15-200 / Piece
Packaging Details:
Export-grade plywood case with anti-rust VCI paper and flange end protectors, custom labeling available
Delivery Time:
10-20 working days
Payment Terms:
T/T,L/C,PayPal
Supply Ability:
3000 Pieces per Month
Highlight

ISO 9001 PED Certified Flange

,

PMI Tested 316L Weld Neck

,

Hydrostatic Pressure Test Verified

Product Description
Stainless Steel Weld Neck Flange ANSI B16.5 Class 300 316L Forged ISO Certified PMI Tested RTJ Face 1 to 8 Inch

Stainless Steel Weld Neck Flange – ISO Certified & Fully Tested
WNRLN manufactures high-integrity stainless steel weld neck flanges backed by rigorous quality certification and comprehensive material testing. Designed for critical high-pressure applications, our 316L weld neck flanges deliver exceptional reliability with full documentation and multi-level inspection protocols.

Quality Certifications
  • ISO 9001:2015 Certified: Our manufacturing facility operates under a fully certified quality management system with annual third-party audits
  • PED 2014/68/EU Compliant: Products meet European Pressure Equipment Directive requirements for CE marking
  • EN 10204 3.1 MTC: Full material test certificates documenting chemical composition and mechanical properties for each heat
Testing & Inspection Protocol
  • PMI (Positive Material Identification): 100% PMI testing using X-ray fluorescence (XRF) analyzer to verify alloy composition and prevent material mix-up
  • Hydrostatic Pressure Testing: Each flange tested at 1.5x rated working pressure to verify structural integrity and leak-tightness
  • Ultrasonic Testing (UT): Volumetric examination to detect internal discontinuities in forged material per ASTM A388
  • Dimensional Inspection: Full dimensional verification against ANSI B16.5 tolerance tables using calibrated CMM equipment
  • Intergranular Corrosion Test: ASTM A262 Practice E testing available upon request for sensitization resistance verification
Technical Specifications
Standard ANSI/ASME B16.5
Pressure Class Class 300 (PN50)
Material ASTM A182 F316L
Size Range 1" to 8" (DN25 to DN200)
Face Type Ring Type Joint (RTJ)
Manufacturing Process Closed-Die Forging + Solution Annealed
NDT Available UT, PT, MT, Radiography
Applications

Engineered for demanding environments including chemical processing plants, offshore oil and gas platforms, pharmaceutical manufacturing, LNG terminals, and high-pressure steam systems where certified material integrity and tested performance are mandatory requirements.

Documentation Package
Standard shipment includes: Material Test Certificate (EN 10204 3.1), PMI Test Report, Dimensional Inspection Report, Certificate of Conformance, and packing list. Additional NDT reports available on request.

316L Forged Weld Neck Flange ANSI B16.5 Class 300 ISO Certified PMI Tested RTJ Face 1 to 8 Inch 0

316L Forged Weld Neck Flange ANSI B16.5 Class 300 ISO Certified PMI Tested RTJ Face 1 to 8 Inch 1

316L Forged Weld Neck Flange ANSI B16.5 Class 300 ISO Certified PMI Tested RTJ Face 1 to 8 Inch 2