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Products
- VALVES
- FITTINGS
- FORGED FLANGE
- SS WELDED PIPE&TUBE
- SS SMLS TUBE
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SS SMLS PIPE
- SS SMLS PIPE 2507 ASTM A790
- SS SMLS PIPE 2205 ASTM A790
- SS SMLS PIPE S31803 ASTM A790
- SS SMLS PIPE 904L ASTM A240
- SS SMLS PIPE TP321 ASTM A312
- SS SMLS PIPE TP310S ASTM A312
- SS SMLS PIPE TP316Ti ASTM A312
- SS SMLS PIPE TP316L ASTM A312
- SS SMLS PIPE TP316 ASTM A312
- SS SMLS PIPE TP304L ASTM A312
- SS SMLS PIPE TP304 ASTM A312
Stainless Steel Forged Flanges from China Suppliers - Quality Factory Manufacturing for ASME, DIN, JIS Standards
Key Features
Material Superiority:
Molybdenum-enriched grades (e.g., F316L with 2.1% Mo) and duplex stainless steels combat chloride-induced pitting, acidic erosion, and stress corrosion cracking, validated by EN 10204 3.1-certified chemistry reports.
Pressure Mastery:
Rated from Class 150 (PN6) to Class 2500 (PN420), with CNC-machined RF/RTJ/FF faces achieving ≤3.2μm surface roughness for ASME B16.5-compliant sealing under cyclic 6,500 psi loads.
Thermal Adaptability:
Stable performance from cryogenic LNG applications (-268°C) to refinery steam lines (650°C), resisting deformation in thermal shock scenarios.
Product Specification
Material:
ASTM A182 grades (F304/F304L/F316L/F321), duplex steels (2205/2507), and carbon steel A105, with full traceability to EN 10204 3.1 standards.
Size & Pressure:
ANSI (CLASS 150–CLASS 2500), BS (1/2"–48"), DIN (DN10–DN2000), and JIS (5K–30K) specifications with RF/RTJ/FF face types for universal compatibility.
Types:
Slip-On, Welding Neck, Blind, Socket Weld, Threaded, Lap Joint, Orifice, Plate, Ring Joint.
Marking:
All Flanges are marked as follows: Specifications, Standard, Grade, Heat NO. (or as per customers’ requirement).
Packing:
With Plastic Caps And Plastic Bubbles For Each Piece, and Then Pack Into Wooden Boxes.
Frequently Asked Questions (FAQ)
1. What materials are used for your forged flanges?
Our forged flanges are manufactured using premium ASTM A182 grades (including F304, F304L, F316L, and F321), duplex stainless steels (2205/2507), and carbon steel A105. All materials come with full chemical and mechanical traceability verified by EN 10204 3.1 certification.
2. What pressure ratings and sizes do you offer?
We supply flanges with pressure ratings ranging from Class 150 (PN6) up to Class 2500 (PN420), and JIS 5K to 30K. Sizes conform to ANSI/BS standards from 1/2" to 48", and DIN standards from DN10 to DN2000.
3. What types of forged flanges are available in your catalog?
We offer a comprehensive range of types, including Slip-On, Welding Neck, Blind, Socket Weld, Threaded, Lap Joint, Orifice, Plate, and Ring Joint (RTJ) flanges.
4. How do these flanges perform under extreme temperature conditions?
Thanks to advanced material engineering, our forged flanges offer exceptional thermal adaptability. They maintain stable performance and structural integrity in environments ranging from cryogenic LNG applications (-268°C) up to high-temperature refinery steam lines (650°C).
5. What markings are standard on your forged flanges?
Every flange is clearly marked with its specific technical parameters, including the manufacturing Standard, material Grade, and Heat Number for complete quality tracking. Custom markings can also be applied based on customer specifications.
6. How are the flanges packaged to prevent damage during transit?
To ensure safe delivery, each flange is individually fitted with plastic protective caps and wrapped in plastic bubble wrap. The prepared pieces are then securely packed into durable, export-grade wooden boxes.