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Leak-Proof, High-Pressure Piping Systems Stainless Steel Flanges custom

Leak-Proof, High-Pressure Piping Systems Stainless Steel Flanges Manufacturers

-- Steady & Reliable Manufacturer --

Material & Process Introduction

Stainless Steel Flanges – Precision Forged Solutions for Leak-Proof, High-Pressure Piping Systems Jiangyin Gaoxin Process: Integrated Forging and Stabilization Heat Treatment Our Stainless Steel Flanges are manufactured utilizing a comprehensive forging process—including advanced ring rolling for larger diameters—which ensures maximum grain structure refinement and superior mechanical strength compared to cast or plate-cut products. Jiangyin Gaoxin utilizes premium raw materials, including ASTM A182 F304/F304L, F316/F316L, and advanced stabilization alloys like F321/321H (UNS S32100/S32109) for extreme heat service. Following near-net shape forging under stringent controls, all flanges undergo critical solution annealing or stabilization heat treatment. This optimizes corrosion resistance, restores ductility, and ensures metallurgical stability. Precision CNC machining follows to achieve exact dimensions, sealing face finishes (serrated or smooth), bolt hole patterns, and weld end preparations per international standards.

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Stainless Steel Flanges Technical Specifications

ParameterSpecification Detail
Material GradeASTM A182 F304/F304L, F316/F316L, F321/321H (UNS S32100/S32109)
Design StandardASME B16.5, B16.47, EN 1092-1, DIN, JIS, GB
Pressure ClassASME Class 150 - 2500; European PN6 - PN400
Size RangeDN15 - DN1500 (1/2" - 60"), larger for bespoke designs
Flange TypesWeld Neck (WNF), Slip-On (SO), Blind (BL), Socket Weld (SW), Threaded (TH), Lap Joint (LJ)
TestingUltrasonic (UT), Magnetic Particle (MT)

Specification Range

Comprehensive Sizing, Global Standards, and Customized Solutions Backed by 35 years of specialized expertise [cite: Image_0_Avenir_Flowchart], Jiangyin Gaoxin offers a vast specification range for Stainless Steel Flanges to meet global engineering demands. Our production covers all types, including Weld Neck (WNF), Slip-On (SO), Blind (BL), Socket Weld (SW), Threaded (TH), and Lap Joint (LJ) flanges. We manufacture sizes ranging from Nominal Diameter DN15 to DN1500 (1/2" - 60") and above [cite: 1]. Pressure ratings cover ASME Class 150 to Class 2500, and European PN6 to PN400 [cite: 1]. Certified to ASME B16.5, B16.47, EN 1092-1, DIN, JIS, and GB standards, we also utilize heavy-duty equipment to provide customized, bespoke flanges based on specific customer drawings and tolerances.

High-Performance Security Barrier: Four Core Commitments of Jiangyin Gaoxin Stainless Steel Flanges

Choosing Jiangyin Gaoxin’s Stainless Steel Flanges is an investment in a robust safety barrier for critical high-pressure, severe-temperature, and corrosive piping systems, ensuring long-term stable operation [cite: Image_0_Avenir_Flowchart]. Our products offer four core commitments.

  • Dense Forged Structural Strength: their dense, forged structure delivers maximum resistance to high pressures and severe mechanical stresses.
  • High-Temperature Stability: through optimized heat treatment (especially for F321/321H alloys), we guarantee high-temperature stability, resisting creep and fatigue [cite: Image_0_Avenir_Flowchart].
  • Precision Sealing Face & Bolt Pattern Accuracy: our precise CNC machining ensures perfect alignment, accurate bolt patterns, and superior sealing face integrity, outperforming standard flanges under severe surges.
  • Traceability & QC Assurance: our rigorous manufacturing traceability mechanism and robust QC testing, including Ultrasonic (UT) and Magnetic Particle (MT) testing [cite: Image_0_Avenir_Flowchart], ensure unwavering quality consistency, minimizing unplanned shutdown risks.

Application Scenarios

Connecting Crucial Systems: Serving Industrial Heart in Rigorous Operating Conditions Jiangyin Gaoxin's Stainless Steel Flanges are widely deployed in connecting the vital industrial heart of critical high-pressure and corrosive piping systems worldwide. In the petrochemical and refining sectors, they are the definitive choice for critical connections within hydrogen cracking, catalytic cracking, and delayed coking units, particularly in high-temperature reactor systemscarrying severe high-pressure, corrosive media where structural integrity is paramount. In the power generation industry, our flanges serve critical systems in supercritical thermal power plants, connecting steam lines that must withstand extreme creep. Furthermore, in pharmaceutical low-temperature processing, food & beverage production, desalination plants, marine engineering, and severe industrial process piping, Jiangyin Gaoxin stainless steel flanges provide indispensable reliability structurally ensuring global energy and process integrity worldwide.

  • Q: What types of Stainless Steel Flanges do you manufacture?
  • A: We manufacture Weld Neck (WNF), Slip-On (SO), Blind (BL), Socket Weld (SW), Threaded (TH) and Lap Joint (LJ) stainless steel flanges from DN15 to DN1500 (1/2" to 60").
  • Q: What is the maximum pressure class available for Stainless Steel Flanges?
  • A: Our stainless steel flanges are available up to ASME Class 2500 and European PN400, suitable for demanding high-pressure piping systems.
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Jiangyin Gaoxin Pipe Fittings Co., Ltd.
About Us
JIANGYIN GAOXIN PIPE FITTINGS CO.,LTD.
Our company is a professional manufacturer of pressure piping components. As Leak-Proof, High-Pressure Piping Systems Stainless Steel Flanges Manufacturers，Our product range covers butt-weld, socket-weld, and threaded pipe fittings, including flanges and customized non-standard parts. These products are widely used in industries such as oil & gas, chemical processing, power generation, shipbuilding, papermaking, metallurgy, pharmaceuticals, and food processing. We manufacture according to standards such as ASME, EN,JIS,DIN,ANSI,GOST, MSS, GB/T,HG, DL, SH, SY,and have a complete range of inspection equipment, a strict quality control system, and various certifications（PED,AD2000,EAC, ABS,BV, DNV,NORSOK M650, ISO9001,ISO14001,ISO45001,etc.）, making us a leader in the industry.

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