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TOBO STEEL GROUP CHINA

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China ASME B16.5 600# Blind Flange UNS S31254 Duplex Stainless Steel High Corrosion
China ASME B16.5 600# Blind Flange UNS S31254 Duplex Stainless Steel High Corrosion

  1. China ASME B16.5 600# Blind Flange UNS S31254 Duplex Stainless Steel High Corrosion
  2. China ASME B16.5 600# Blind Flange UNS S31254 Duplex Stainless Steel High Corrosion
  3. China ASME B16.5 600# Blind Flange UNS S31254 Duplex Stainless Steel High Corrosion
  4. China ASME B16.5 600# Blind Flange UNS S31254 Duplex Stainless Steel High Corrosion
  5. China ASME B16.5 600# Blind Flange UNS S31254 Duplex Stainless Steel High Corrosion
  6. China ASME B16.5 600# Blind Flange UNS S31254 Duplex Stainless Steel High Corrosion
  7. China ASME B16.5 600# Blind Flange UNS S31254 Duplex Stainless Steel High Corrosion
  8. China ASME B16.5 600# Blind Flange UNS S31254 Duplex Stainless Steel High Corrosion
  9. China ASME B16.5 600# Blind Flange UNS S31254 Duplex Stainless Steel High Corrosion
  10. China ASME B16.5 600# Blind Flange UNS S31254 Duplex Stainless Steel High Corrosion
  11. China ASME B16.5 600# Blind Flange UNS S31254 Duplex Stainless Steel High Corrosion
  12. China ASME B16.5 600# Blind Flange UNS S31254 Duplex Stainless Steel High Corrosion
  13. China ASME B16.5 600# Blind Flange UNS S31254 Duplex Stainless Steel High Corrosion

ASME B16.5 600# Blind Flange UNS S31254 Duplex Stainless Steel High Corrosion

  1. MOQ: 1pcs
  2. Price: Depending on quantity
  3. Get Latest Price
Payment Terms T/T, L/C, Western Union
Supply Ability 10 ton/month
Delivery Time 15-30 days depending on quantity
Packaging Details Petroleum/Power/Chemical/Construction/Gas/Metallurgy/Shipbuilding etc
Name Duplex Stainless Steel Flange
Sizerange 1/2 inch to 48 inches
Manufacturingprocess Forged
Inspection Mechinical Property Inspection
Technic Forged
Production Capacity 60000PCS/Month
Facing Flange RAISED FACE
Shape Round Shape
Head Code round
Diameter 1
Tolerance ±1%
Grade C71500
Temperature Rating -29°C - 593°C
Stadard ANSI/ASME B16.5
Applications Pipe Lines Connect
Brand Name TOBO
Model Number Alloy Steel Flanges
Certification SGS/BV/ABS/LR/TUV/DNV/BIS/API/PED
Place of Origin China

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms T/T, L/C, Western Union Supply Ability 10 ton/month
Delivery Time 15-30 days depending on quantity Packaging Details Petroleum/Power/Chemical/Construction/Gas/Metallurgy/Shipbuilding etc
Name Duplex Stainless Steel Flange Sizerange 1/2 inch to 48 inches
Manufacturingprocess Forged Inspection Mechinical Property Inspection
Technic Forged Production Capacity 60000PCS/Month
Facing Flange RAISED FACE Shape Round Shape
Head Code round Diameter 1
Tolerance ±1% Grade C71500
Temperature Rating -29°C - 593°C Stadard ANSI/ASME B16.5
Applications Pipe Lines Connect Brand Name TOBO
Model Number Alloy Steel Flanges Certification SGS/BV/ABS/LR/TUV/DNV/BIS/API/PED
Place of Origin China
High Light ASME B16.5 blind flangeDuplex stainless steel flangeHigh corrosion resistance flange

ASME B16.5 600# Blind Flange UNS S31254 Duplex Stainless Steel High Corrosion Resistance

 

This high-performance duplex stainless steel blind flange is strictly manufactured in accordance with ASME B16.5 standard, crafted from premium UNS S31254 duplex stainless steel, featuring a blind flange design and a pressure rating of 600#. It is specially engineered for industrial pipeline systems that require reliable sealing and excellent corrosion resistance, providing a secure, leak-proof solution for closing pipeline ends in harsh working environments.

 

UNS S31254 is a high-alloy duplex stainless steel (also known as 254SMO), renowned for its exceptional corrosion resistance—far superior to conventional duplex steels. It offers outstanding resistance to pitting, crevice corrosion, stress corrosion cracking, and general corrosion in aggressive media such as seawater, acidic solutions, chlorides, and industrial chemicals. With a balanced austenitic-ferritic microstructure, it also boasts high tensile strength, yield strength, and good toughness, enabling it to withstand the 600# pressure rating and long-term operation in demanding industrial conditions.

 

The blind flange design is specifically used to seal the end of pipelines, effectively preventing fluid leakage and protecting pipeline internal components from external contamination. It is precision forged and machined, with strict dimensional accuracy, a smooth sealing surface (Raised Face/RF as standard, Ring Type Joint/RTJ optional), and consistent material uniformity. The flange is easy to install and disassemble, facilitating pipeline maintenance, inspection, and temporary or permanent closure.

 

Widely applied in offshore oil and gas, marine engineering, chemical processing, desalination plants, pharmaceutical, and high-corrosion pipeline systems where reliable sealing and corrosion resistance are critical. All flanges undergo rigorous quality control, including chemical composition analysis, mechanical performance testing, pressure testing, and dimensional inspection, fully complying with ASME B16.5 standards and international industrial requirements.

Key Specifications

  • Standard: ASME B16.5
  • Material: UNS S31254 (254SMO) Duplex Stainless Steel
  • Type: Blind Flange
  • Pressure Rating: 600#
  • Size Range: DN15 - DN600 (custom sizes available upon request)
  • Face Type: Raised Face (RF) (standard), Ring Type Joint (RTJ) (optional)
  • Application: Offshore, petrochemical, desalination, chemical, marine, pharmaceutical, high-corrosion pipeline systems
With excellent durability, stable sealing performance, and strong corrosion resistance, this UNS S31254 duplex stainless steel blind flange provides a cost-effective and reliable sealing solution for 600# pressure industrial pipeline projects.

 

 

 

Product Details:

Place of Origin: China
Brand Name: TOBO
Certification: ISO/PED/TUV/SGS/LR/BV
Model Number: Duplex Steel

 

 

Payment & Shipping Terms:

Minimum Order Quantity: 500KG
Price: USD Depending on quantity
Packaging Details: Wooden case
Delivery Time: 10-100days
Payment Terms: L/C, T/T, Western Union

 

 

Product Range:

WNRF Flanges Size : 1/8" NB TO 48"NB.

WNRF Flanges Class : 150#, 300#,400 #,600#,900#, 1500# & 2500 #.

 

Stainless Steel WNRF Flanges: ASTM A 182, A 240

Grade : F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H,904L, Duplex stainless steel UNS S31803, 2205, Super Duplex stainless steel UNS S32750

 

Carbon Steel WNRF Flanges: ASTM A 105, ASTM A 181

 

Alloy Steel WNRF Flanges : ASTM A 182, GR F1, F11, F22, F5, F9, F91

 

Nickel Alloys WNRF Flanges : Monel 400 & 500, Inconel 600 & 625, Incolloy 800, 825, Hastelloy C22,C276

 

Copper Alloys WNRF Flanges: Copper, Brass & Gunmetal

 

WNRF Flanges Standard
ANSI : ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48
DIN : DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673
B.S : BS4504 , BS4504, BS1560, BS10

 

Value Added Services

Hot Dip Galvanizing , Epoxy Coating.

 

Test Certificate

Manufacturer Test Certificate as per EN 10204 / 3.1B

 

 

 

FAQ.

Q: Are you trading company or manufacturer ?
A: We are manufacturer ,You can see the certification.

Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.

Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but need pay the cost of freight.

Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.

Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer,Agent,Importer,Exporter,Trading Company,Seller

  • Year Established:

    1998

  • Total Annual:

    3,000,000-10,000,000

  • Employee Number:

    200~300

  • Ecer Certification:

    Verified Supplier

TOBO GROUP sales head offce in Shanghai.   We are one of the Professional manufacturers Exporter Pipeline products in China .Our company was established in 1998, the plant covers 550, 000 square meters and a construction area of 6,8,000square meters, existing 260 workers and 45 technicia... TOBO GROUP sales head offce in Shanghai.   We are one of the Professional manufacturers Exporter Pipeline products in China .Our company was established in 1998, the plant covers 550, 000 square meters and a construction area of 6,8,000square meters, existing 260 workers and 45 technicia...

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  • Reach Us
  • TOBO STEEL GROUP CHINA
  • No.208,Lvdi Road,Baihe Town,Qingpu District,Shanghai,China
  • https://www.tobo-group.com/

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