Ss Pipe Flanges
Product Overview
Ss Pipe Flanges are forged or cast components used to connect piping sections, valves, and equipment, forming pressure-containing joints in industrial piping systems.
Technical Specifications
|
Category |
Specification |
|
Material Grades |
ASTM A182 F304 / F316 / F316L / F321 / F347 / F51 / F53 |
|
Standards |
ASME B16.5 / ASME B16.47 / EN 1092-1 |
|
Pressure Ratings |
Class 150–2500 / PN 6–PN 100 |
|
Flange Types |
WN / SO / BL / SW / TH / LJ |
|
Facing Types |
RF / FF / RTJ |
|
Size Range |
1/2"–24" (B16.5), 26"–60" (B16.47) |
|
Pipe Schedule |
Sch 10s / 40s / 80s / 160 / XXS |
|
Manufacturing |
Forged / Machined |
|
Heat Treatment |
Solution Annealing |
|
Testing |
VT / PT / UT / RT + 100% PMI |
Manufacturing & Capacity
Forging Equipment
Hydraulic presses and ring rolling machines used to achieve required grain structures.
01
CNC Machining
Multi-axis lathes used to control dimensional tolerances on sealing surfaces.
02
Solution Annealing Furnaces
Temperature-controlled heat treatment systems for stable material phases.
03
Monthly Capacity
1,500 tons of finished components per month.
04
Integrated Testing Lab
In-house spectrometers, ultrasonic detectors, and hydrostatic testing rigs for quality testing.
05
QA/QC & Material Traceability
Quality Control & Inspection
Dimensional Checks: Standard tolerances checked for piping alignment requirements.
Surface Finish: AARH 125–250 surface finish for gasket contact requirements.
Hardness Verification: Brinell hardness tested within specified limits for bolt load conditions.
Flaw Detection: Ultrasonic testing for internal defect detection in pressure applications.
Corrosion Resistance Proof: ASTM A262 pitting test for corrosion resistance in acid environments.
Material Traceability
Heat Number Stamping: Each component marked with heat code for mill traceability.
EN 10204 3.1 Certification: Mill test certificates issued with chemical composition and mechanical properties.
Digital Logging System: Production and inspection data recorded from raw material to finished parts in ERP system.
Applications
|
Application Sector |
Typical Usage |
|
Chemical Processing |
Connecting reactor vessels and acid piping lines |
|
Oil & Gas Refining |
Joining high-pressure pipelines and valve systems |
|
Water Treatment |
Linking desalination pumps and distribution networks |
|
Power Generation |
Connecting steam lines and cooling water systems |
|
Food & Beverage |
Assembling sanitary pipelines and storage tanks |
|
Marine Engineering |
Installing offshore platform piping and ballast systems |
Custom Forging & Precision Machining
Custom Forging
Open-die or closed-die forging based on client drawings.
Specialized Face Grooving
RJT or tongue-and-groove machining for non-standard gaskets.
Variable Wall Boring
Inner hub diameter adjusted for non-standard pipe schedules.
Multi-Angle Drilling
Non-standard bolt hole circles drilled with CNC equipment.
Lathe Turning
Heavy-wall necks and tapered hubs machined to weld bevel standards.
FAQ
Q: What packaging is used to prevent flange face damage during maritime transit?
A: Rust-preventive oil applied, plastic face protectors installed, and seaworthy wooden crates used.
Q: Can you provide low-carbon raw material options to minimize carbide precipitation during field welding?
A: F304/304L and F316/316L grades available with carbon content below 0.03%.
Q: How do you verify that the bolting holes align with mating valves from other manufacturers?
A: Every batch undergoes template indexing and alignment alignment checks according to standard ASME dimension tables.
Q: Do you accept third-party inspection agencies like SGS or BV at your factory before shipment?
A: We regularly coordinate with independent inspectorates for witness testing, dimensional audits, and material document verification.
Q: What specific measures are taken to avoid carbon steel cross-contamination during production?
A: We utilize dedicated stainless-only machining areas and non-ferrous handling tools throughout processing stages.
Q: Do you offer passivation or pickling finishes to improve the oxide layer after machining?
A: Acid pickling and chemical passivation treatment options are available to restore optimal corrosion resistance.
Q: Are low-temperature impact tests available for Arctic or cryogenic piping deployments?
A: Charpy V-notch impact testing at specified sub-zero temperatures can be conducted upon technical request.
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