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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 Forged Stainless Steel Flanges Supplier & Factory - ASTM A182, ASME B16.5, 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
What materials are available for these forged flanges?
Our forged flanges are available in ASTM A182 grades (F304, F304L, F316L, F321), duplex steels (2205/2507), carbon steel A105, and molybdenum-enriched grades (such as F316L with 2.1% Mo) to resist corrosion and pitting.
What pressure classes and sizes are supported?
We offer sizes ranging from 1/2" to 48" (DN10 to DN2000) and pressure ratings from Class 150 (PN6) up to Class 2500 (PN420), complying with ANSI, BS, DIN, and JIS specifications.
What types of forged flanges do you offer?
Our product line includes Slip-On, Welding Neck, Blind, Socket Weld, Threaded, Lap Joint, Orifice, Plate, and Ring Joint flanges.
What temperature ranges can these flanges withstand?
These flanges have excellent thermal adaptability, performing reliably from cryogenic LNG temperatures of -268°C up to high-temperature refinery steam lines at 650°C.
How are the flanges marked and packaged?
All flanges are marked with their standard, specifications, grade, and Heat Number. For protection, each piece is wrapped in plastic caps and bubble wrap, then packed securely into wooden boxes.
Are material test reports provided?
Yes, we provide full chemical and physical traceability validated by EN 10204 3.1-certified chemistry reports to guarantee material superiority.