Plate Flange Pl Industrl Pipe Flanges - China

What are Plate flanges? A Plate Flange is a type of flange that is made from a flat piece of metal, typically steel or stainless steel.

The flange is cut and formed to shape, with a raised face on one side and a recessed area on the other side.

It is often referred to as a flat flange, a plain flange, and flange slip, etc.

Two plate flanges can be bolted together with a gasket in between them, usually used in fuel and water pipelines.

Plate flanges have a serrated finish on the inner mating surface, allowing the plate to fit within the material of the gasket.

In any given dimension, plate flange designs are standardized regardless of the materials used to manufacture them.

What are the plate flange Advantages? Plate flanges have several advantages, such as: Easy to Manufacture: Plate flanges can be easily manufactured by cutting and shaping a flat plate.

Cost-Effective: Plate flanges are relatively inexpensive compared to other types of flanges, making them a cost-effective option.

Customizable: Plate flanges can be customized to suit specific application needs, such as different pressure ratings and sizes.

Plate Pipe Flange manufacturer Plate flanges Application: Plate flanges have several uses, such as: Piping Systems: Plate flanges are commonly used in piping systems to connect pipes and other fittings.

Industrial Applications: Plate flanges are used in various industrial applications, such as oil and gas, chemical, and power plants.

High-pressure and High-temperature Applications: Plate flanges are suitable for use in high-pressure and high-temperature environments because of their strength and durability.

Why choose JSFITTINGS as your industrial flange supplier? 1 - 30, 000-ton production capacity guarantee | Stable supply of large-scale project needs 2 - Dual-standard certified steel pipes | API 5L + EN 10219 dual compliance assurance 3 - Precision Cutting Services | Ready-to-use pipe end treatments 4 - Oil and Gas Project Logistics System | Exclusive Shipping Solutions Covering Central Asia/Middle East industry Plate Flanges supplier 1 - Dimensional & Visual Inspection 1.1 Dimensional Tolerance Checks (Per ASTM A530 / API 5L) Parameter Tolerance Instrument Used Outer Diameter (OD) ±1% of nominal OD (or ±0.79mm) Pi tape / Laser micrometer Wall Thickness (WT) ±12.5% (SCH40 and below) Ultrasonic thickness gauge (UTG) Length ±3mm for random, ±6mm for cut-length Calibrated tape measure Straightness ≤0.2% of total length Optical comparator Bevel Angle (for welding) 30°–35° (±5°) Bevel protractor 1.2 Visual & Surface Inspection Defect Identification: Lamination – Check for delamination near pipe ends Scratches/Dents – Max 5% of WT depth allowed (per ASME B31.3) Rust & Mill Scale – Controlled by SSPC-SP6 (Commercial Blast Cleaning) Method: White light inspection (10, 000 lux minimum) Dye penetrant test (PT) for surface cracks 2 - Mechanical & Chemical Testing.

2.1 Chemical Composition (Per ASTM A751) Spark OES Analyzer (for C, Mn, Si, P, S, Cr, Mo, etc.

) LECO Gas Analyzer (for O₂, N₂, H₂ in high-purity applications) Sampling: Drill chips from mid-wall section (avoiding decarburization) 2.2 Mechanical Properties Test Standard Equipment Acceptance Criteria Tensile Test ASTM A370 Universal testing machine ≥415 MPa (A106 Gr.

B) Hardness Test ASTM E10/E18 Rockwell/Brinell tester ≤187 HB (A106 Gr.

B) Impact Test (Charpy V) ASTM A370 Pendulum impact tester ≥27J @ -20°C (API 5L X42) Flattening Test ASTM A53 Hydraulic press No cracking @ ⅔ WT flattening Drift Expanding Test API 5L Mandrel expansion tool No cracks @ 8% expansion (Note: A106 requires extra tensile tests at elevated temps for high-temp service) 3 - Non-Destructive Testing (NDT) 3.1 Ultrasonic Testing (UT) Method: Automated rotating UT probes (ASTM E213) Detection Capability: Laminations: ≥5% of WT Inclusions: ≥2mm diameter Scanner Type: Immersion tank UT for full-body coverage 3.2 Radiographic Testing (RT) Standard: ASTM E94 (Film/Digital RT) Sensitivity: Detect 2% WT lack of fusion in welds Application: Mandatory for ERW weld seams (API 5L) 10% random sampling for seamless pipes 3.3 Eddy Current Testing (ECT) Used for surface crack detection in thin-walled pipes (SCH10 and below) Advantage: No couplant, fast scanning speed (30m/min) 3.4 Hydrostatic Test Pressure: Minimum 1.5x design pressure (ASME B31.3) Duration: ≥10 sec (ASTM A106) Leak Criteria: Zero visual weeping 4 - Specialized Tests for Critical Applications 4.1 Corrosion Testing Salt Spray Test (ASTM B117): 720h exposure for coastal projects HIC Test (NACE TM0284): Hydrogen-induced cracking resistance for sour service SSC Test (NACE TM0177): Sulfide stress cracking evaluation 4.2 High-Temperature Performance Creep Rupture Test (ASTM E139): 10, 000h data available for A106 Gr.

B Cyclic Oxidation Test: Weight loss measurement at 600°C

Company Contact:

• Posted By: HEBEI JINSHENG PIPE FITTING MANUFACTURING CO., LTD,

• Phone: 86-18032153916

• Address: Wuliyao Industry Zone, Yanshan County, , Cangzhou , Hebei , China

• Email:

• Website: https://jsfittings.com/

• Business Description: We are committed to providing quality products and services at competitive prices, including but not limited to steel pipe flange,buttweld elbow,butt weld tee,pipe Reducers and steel pipe .
  
  We have earned ISO9001: 2015, CE, GOST-R, and passed Pressure Equipment Directive (PED) certification.
  
  All this comes with exemplary customer service and a comprehensive warranty that guarantees your satisfaction.