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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 Suppliers of Stainless Steel Forged Flanges - Factory Manufactured to ASTM A182 and International 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
What materials are used to manufacture these forged flanges?
Our forged flanges are manufactured using premium ASTM A182 grades (F304, F304L, F316L, F321), duplex stainless steels (2205/2507) including molybdenum-enriched variations, and carbon steel A105. All materials include full chemical and physical traceability certified to EN 10204 3.1 standards.
What pressure ratings and standards do you comply with?
We offer flanges conforming to international standards including ANSI (Class 150 to Class 2500), BS (1/2" to 48"), DIN (DN10 to DN2000), and JIS (5K to 30K). The pressure capabilities range from PN6 up to PN420, with RF, RTJ, and FF face selections.
Can these flanges withstand extreme temperatures?
Yes. These forged flanges are designed for exceptional thermal adaptability, maintaining structural stability and sealing integrity from cryogenic LNG environments as low as -268°C up to high-temperature refinery steam systems reaching 650°C.
What types of forged flanges are available?
We supply a complete range of flange configurations, including Slip-On, Welding Neck, Blind, Socket Weld, Threaded, Lap Joint, Orifice, Plate, and Ring Joint types.
How are the flanges packaged to prevent damage during transit?
To ensure the integrity of the sealing faces and machined surfaces, each individual flange is protected with plastic caps and bubble wrap before being securely packed into heavy-duty wooden boxes.