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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
China Stainless Steel Forged Flanges Suppliers - ASTM A182, ASME B16.5, DIN, JIS | Quality Factory Manufacturing
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 Bubles For Each Piece, and Then Pack Into Woodn Boxes
Frequently Asked Questions
What materials are available for your forged flanges?
Our forged flanges are manufactured in a wide range of materials, including ASTM A182 stainless steel grades (F304, F304L, F316L, F321), duplex steels (2205, 2507), and carbon steel A105, ensuring options for highly corrosive or high-pressure environments.
What pressure ratings and standards do you support?
We support multiple international standards including ANSI (Class 150 to Class 2500), BS (1/2" to 48"), DIN (DN10 to DN2000), and JIS (5K to 30K) specifications with RF, RTJ, and FF face configurations.
How do molybdenum-enriched grades benefit piping systems?
Molybdenum-enriched grades like F316L (containing 2.1% Mo) and duplex stainless steels offer superior resistance against chloride-induced pitting, stress corrosion cracking, and acidic erosion compared to standard grades.
What types of forged flanges can I order?
We offer a complete selection of types including Slip-On, Welding Neck, Blind, Socket Weld, Threaded, Lap Joint, Orifice, Plate, and Ring Joint flanges to fit diverse piping layouts.
Are the materials certified and traceable?
Yes, all our forged flanges are fully traceable and supplied with EN 10204 3.1-certified chemistry and material test reports, ensuring compliance with strict industrial safety standards.
How are the flanges packaged for international shipping?
To prevent any damage during transit, each flange is individually protected with plastic caps and bubble wrap, and then securely packed into reinforced wooden boxes.