Shanxi Xinshunda Flange Manufacturing Co., Ltd. supplies high-precision KS B1503 10K flanges for medium-pressure Korean standard piping systems. Fully compliant with KS B1503 (consistent with JIS B2220 10K), our flanges offer stable performance, reliable sealing and strong interchangeability. With 19 years of forging and machining experience, we provide professional flange solutions for Korean, Japanese, Southeast Asian and shipbuilding industries.
Product Description
KS B1503 10K flange is a medium-pressure steel pipe flange specified by Korean standard KS B1503, with a pressure rating of 10K (1.0 MPa / 145 psi). It is widely used in industrial piping, water supply, HVAC, marine engineering, fire protection and utility systems. Our 10K flanges are precisely forged and CNC machined to meet standard dimensions, ensuring easy installation, stable sealing and long service life.
Product Feature and Application
Key Features
- Full compliance with KS B1503 standard dimensions
- 10K medium-pressure rating for wide industrial use
- High precision and good interchangeability
- Smooth sealing face ensures stable and durable connection
- Easy installation, welding and maintenance
- High strength, good pressure and vibration resistance
- Fully compatible with Korean & Japanese standard valves and fittings
Main Applications
- Industrial water, gas, oil and fluid pipelines
- Marine and shipbuilding auxiliary systems
- HVAC, heating and compressed air networks
- Fire protection and utility engineering
- Korean, Japanese and Southeast Asian market projects
- Construction, chemical and general plant piping
Product Parameter
| Standard | KS B1503 10K (compatible with JIS B2220 10K) |
| Pressure rating | 10K (1.0 MPa / 145 psi) |
| Nominal diameter | 10A – 1000A (DN10 – DN1000) |
| Types | Slip-on, Weld Neck, Blind Flange, Plate Flange, Threaded Flange |
| Face type | Flat Face (FF), Raised Face (RF) |
| Surface roughness | Ra 1.6–3.2 μm |
|
Materials |
Carbon steel: SS400, S235JR, A105 Stainless steel: STS304, STS316, 304L, 316L |
| Working temperature | −10 °C – 300 °C |
| Certification | EN 10204 3.1 Material Test Certificate |
Production Details
Each KS B1503 10K flange is manufactured under strict quality control:
- Raw material inspection with mill certificates and spectral analysis
- Precision forging or plate forming per KS B1503 standard
- CNC machining for accurate OD, PCD, bolt holes and facing
- 100% dimensional inspection using calipers, gauges and CMM
- Visual inspection and optional MT/UT non destructive testing
- Hydrostatic testing to verify pressure integrity
- Anti-corrosion oil coating and permanent marking
- Full traceability from raw material to finished product
Production Display
Our ISO 9001 certified factory is equipped with full sets of forging lines, CNC machining centers, heat treatment furnaces and professional testing laboratories. The whole production process is traceable. Third-party inspection by SGS, BV, TÜV is available upon request.
Packaging & Transportation
- Surface treatment: Anti-corrosion oil, varnish or black paint
- Packaging: Plastic film, woven bag, export wooden case, steel pallet
- Labeling: Size, pressure, material, standard, heat number, batch
- Documents: Commercial invoice, packing list, certificate of origin, material test report
- Transportation: Sea, air and express delivery to over 70 countries
After-sales Service
We provide full life cycle technical support for KS B1503 10K flanges:
- Professional consultation on selection, installation and welding
- Custom sizes, materials and drilling per customer drawings
- Timely response to after-sales inquiries and quality claims
- Remote technical guidance and on-site support
- Long-term stable supply for large projects
Why Choose Shanxi Xinshunda?
- 19 years of professional flange manufacturing experience
- Full compliance with KS B1503 and international standards
- Complete 10K size range 10A–1000A with fast delivery
- Strict quality control and complete testing documents
- Direct factory price with stable lead times
- Multilingual service and global logistics support
Contact us today for catalog, quotation or customized solutions of KS B1503 10K flanges.
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