Alloy Steel/Pneumatic JIS 316ti AISI 300 RF Weld Neck Female Thread BSPT NPT Pipe Flanges
Alloy Steel / Pneumatic / JIS / 316Ti / Cast / AISI 300 RF Weld Neck / Female Thread / BSPT NPT / Pipe Flanges | SSM
SSM is a professional manufacturer and global supplier of Alloy Steel, Stainless Steel (AISI 300 Series, 316Ti), and JIS Standard Pipe Flanges, including RF Weld Neck Flanges, Female Threaded Flanges (BSPT/NPT), and Cast Steel Flanges. These products are widely used in pneumatic systems, oil & gas, chemical processing, shipbuilding, and power generation.
1. Product Overview
SSM supplies a full range of Pipe Flanges designed for reliable connection and sealing of pipelines under various pressure and temperature conditions.
Each flange type - Weld Neck, Threaded, or Cast - is engineered to meet international standards such as ASME B16.5, JIS B2220, and EN 1092-1.
Available Types:
RF Weld Neck Flange (WN RF)
Female Threaded Flange (BSPT / NPT)
Slip-On / Blind / Lap Joint / Socket Weld / Plate Flange
Standards: ASME / JIS / DIN / EN / GOST
Material: Alloy Steel, 316Ti, AISI 304, AISI 316, AISI 321
Size Range: DN15 – DN1200 (½" – 48")
Pressure Rating: Class 150 – 2500 / PN6 – PN40
2. Material Composition (Typical for 316Ti Stainless Steel)
| Element | Content (%) |
|---|---|
| Carbon (C) | ≤ 0.08 |
| Chromium (Cr) | 16.0 – 18.0 |
| Nickel (Ni) | 10.0 – 14.0 |
| Molybdenum (Mo) | 2.0 – 3.0 |
| Titanium (Ti) | 5 × C – 0.7 |
| Manganese (Mn) | ≤ 2.0 |
| Silicon (Si) | ≤ 1.0 |
| Iron (Fe) | Balance |
316Ti stainless steel is a titanium-stabilized grade offering excellent intergranular corrosion resistance and high-temperature strength, making it ideal for heat exchanger and power plant applications.
3. Mechanical Properties (316Ti)
| Property | Typical Value |
|---|---|
| Tensile Strength | ≥ 515 MPa |
| Yield Strength | ≥ 205 MPa |
| Elongation | ≥ 35% |
| Hardness | ≤ 217 HB |
| Service Temperature | -196°C to +870°C |
4. Key Features
✅ Corrosion Resistance: Excellent resistance to acids, chlorides, and marine environments.
✅ High Strength: Suitable for high-pressure pneumatic and hydraulic systems.
✅ Precision Threading: BSPT/NPT threading ensures leak-free connections.
✅ Thermal Stability: Performs well at elevated temperatures without deformation.
✅ Custom Manufacturing: Available in forged, cast, or machined configurations per client request.
5. Advantages and Limitations
Advantages:
Excellent weldability and machinability.
Long service life with minimal maintenance.
Compatible with pneumatic, hydraulic, and industrial systems.
Meets multiple standards (ASME, JIS, DIN, GOST).
Limitations:
Alloy and titanium grades are costlier than carbon steel.
Threaded designs are less suitable for extreme pressure cycles.
6. Applications
Pneumatic and Hydraulic Equipment
Oil & Gas Pipelines
Chemical and Petrochemical Plants
Marine Engineering Systems
Power Plants and Heat Exchangers
7. Why Choose SSM
30+ years of expertise in industrial flange manufacturing
Certified under ISO 9001 / EN 10204 3.1
Advanced CNC machining and forging capabilities
Compliance with ASME B16.5, JIS B2220, and DIN EN 1092-1
Fast delivery and custom flange design service
8. Conclusion
The Alloy Steel / Stainless Steel 316Ti RF Weld Neck and Threaded Flanges from SSM combine strength, corrosion resistance, and precision engineering for high-performance pipeline systems. Whether for pneumatic, marine, or industrial applications, these flanges ensure secure connections, long durability, and compliance with international standards.
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