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  • TOBO STEEL GROUP CHINA
    Brazil---Aimee
    In the latest vendor rating, TOBO won the excellent rating, it is good, will continue to cooperate.
  • TOBO STEEL GROUP CHINA
    Thailand ---Dave Mulroy
    ASTM A213 T9 Alloy steel pipe ,Stable quality , good price, excellent serive, TOBO GROUP is our trustworthy partner .
  • TOBO STEEL GROUP CHINA
    USA ---Alfaro
    ASTM A182 F55 Super Duplex Flange ,Good quality , we like that ! And delivery time in time also ,very professional.
Contact Person : Joy Wang
Phone Number : 0086-21-31261985
WhatsApp : +8613524668060

Forged Steel Socket Welding Flange ASTM A105 ANSI Class 150 RF

  • Forged Steel Socket Welding Flange ASTM A105 ANSI Class 150 RF
  • Forged Steel Socket Welding Flange ASTM A105 ANSI Class 150 RF
  • Forged Steel Socket Welding Flange ASTM A105 ANSI Class 150 RF
  • Forged Steel Socket Welding Flange ASTM A105 ANSI Class 150 RF
  • Forged Steel Socket Welding Flange ASTM A105 ANSI Class 150 RF
Place of Origin Shanghai,China
Brand Name TOBO
Certification ISO/TUV/SGS
Model Number Forged Steel Flanges
Minimum Order Quantity 1PC
Price Negotiable
Packaging Details Standard Shipping Package
Delivery Time 15-30 Workdays
Payment Terms T/T, Western Union
Supply Ability 10 Ton/Month
Product Details
Product Name Forged Steel Socket Welding Flange ASTM A105 ANSI Class 150 RF Size 1/2''-120'' Dn10 To Dn3600
Pplicable For Medium Pressure(Gas, Liquid, Dust) Flange Surface FF RF TG RJ
Temperaturerange -50°C To 600°C Type Flange
Craft Seamless Or Welded,butt Weld Types Flange
Class Rating 150~2500# Package Wooden Boxes
Face Type Raised Face, Flat Face, Ring Type Joint Shape Equal
Payment T/T Or Others Facing RF
Keyword Steel Productname Forged Steel Flanges
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ASTM A105 forged steel flange

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ANSI Class 150 socket welding flange

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RF forged steel welding flange
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Product Description

Forged Steel Socket Welding Flange ASTM A105 ANSI Class 150 RF

 

1. Product Description 

Forged steel flanges are pressure‑containing components produced by hot forging from killed steel, ensuring a fully dense, fine‑grained structure. They meet ASME, EN, JIS, DIN, and GB standards. Available in carbon, alloy, and stainless steels, with all common types and facing finishes.

2. Product Applications 

  • Oil & Gas – wellheads, pipelines, refineries

  • Chemical & Petrochemical – reactors, heat exchangers

  • Power Generation – boilers, steam lines, nuclear

  • Shipbuilding & Offshore – deck piping, subsea

  • Water & Wastewater – treatment plants, desalination

  • Pharma & Food – sanitary lines, sterile systems

  • Suited for steam, hydrocarbons, acids, cryogenic fluids, and high‑purity media.

3. Product Advantages 

  • ✔ Stronger – Up to 30% higher tensile strength than cast equivalents.

  • ✔ Tougher – Fine grain ensures superior impact resistance at low temperatures.

  • ✔ Leak‑tight – Precision faces (Ra ≤ 3.2 µm) ensure reliable gasket sealing.

  • ✔ Durable – Excellent corrosion and erosion resistance prolongs service life.

  • ✔ Traceable – Each piece marked with heat number, full documentation available.

​Forged Steel Socket Welding Flange ASTM A105 ANSI Class 150 RF

4.Key Technical Parameters

Item Quick Reference Data
Standards ASME B16.5 (≤24″), B16.47 (≥26″); EN 10921; DIN; JIS; GB
Sizes NPS ½″ to 120″ (DN 15–3000)
Pressure ratings Class 150, 300, 600, 900, 1500, 2500 (equiv. PN 20–420)
Temperature range –196°C to +600°C (derate per standard)
Common materials • Carbon: A105 (general), A350 LF2 (low-temp)
• Alloy: F11/F22 (450–550°C), F91 (≤600°C)
• Stainless: F304/F316L (corrosion-resistant)
Flange types WN (weld neck), SO (slip-on), BL (blind), SW (socket weld), THRD (threaded), LJ (lap joint), Orifice
Face styles RF (raised face) – most common; FF (flat); RTJ (ring joint) – high pressure; MF / TG – special
Bolting (typical) Studs: ASTM A193 B7/B8; Nuts: A194 2H/8M. Quantities per ASME B16.5.
Inspection PMI 100%, MT/PT standard, UT optional, hydrotest 1.5× design pressure
Certificates EN 10204 Type 3.1 (standard), Type 3.2 (third-party witness)

 

FAQ

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

2.How long is your delivery time? 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.

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

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

Tags:

butt weld flanges

forgings flanges and fittings

forged fittings and flanges