What is CNC Machining Raised Face Flange?

CNC Machining Raised Face Flange is a pipe assembly designed for systems that require firm, durable connections between pipes, valves, pumps, and other equipment. They are characterized by a raised surface around the flange holes, protruding above the circle surface of the bolt. This raised area or “face” provides an additional surface area that can be effectively sealed by the gasket to prevent leakage within the system.
Application of Raised Face Flange
Raised Face Flange are widely used in various industries, including oil and gas, chemical, petrochemical, power generation, water treatment and HVAC. Some common applications of protruding flanges include:
● Pumps, valves, and containers in manufacturing and food processing.
● Pipeline connection of industrial water plants.
● Heat exchangers and heating systems of all sizes.
● Mining support.
● Nuclear power system.
● Pipe-work and mechanical systems.
● Components of the oil, gas, and petrochemical industries.
● Fire extinguisher system.

01 Part name
CNC Machining Raised Face Flange

02 Application
Industries components

03 Material
Stainless steel

04 Process
Investment casting
& Machining

05 Casting method
Thermal Gravity Casting

06 Surface finished
Shot blasting
Part Application
Investment casting, also known as lost-wax casting, is a manufacturing process used to create metal parts with complex shapes and intricate details



Available Material
|
1-Carbon steel |
2-Low alloy steel |
3-Corrosion-resistant steel |
4-Heat-resistant steel |
||||
|
General engineering cast steel (ISO 3755) |
Carbon and low alloy cast steels for general applications (ISO 14737) |
Corrosion-resistant cast steels for general applications (ISO 11972) |
Heat-resistant cast steels and alloys for general applications (ISO 11973) |
||||
|
200-400 |
400-550MPa |
GE200 |
1.0420 |
GX12Cr12 |
1.4011 |
GX30CrSi7 |
1.4710 |
|
200-400W |
400-550MPa |
GE240 |
1.0446 |
GX2CrNi19-11 |
1.4309 |
GX40CrSi13 |
1.4720 |
|
230-450 |
450-600MPa |
GS340 |
1.0467 |
GX5CrNi19-10 |
1.4308 |
GX40CrSi17 |
1.4740 |
|
230-450W |
450-600MPa |
G20Mo5 |
1.5419 |
GX5CrNiMoNb19-11-2 |
1.4581 |
GX40CrSi24 |
1.4745 |
|
270-480 |
480-650MPa |
G42CrMo4 |
1.7231 |
GX5CrNiMoN19-11-3 |
1.4412 |
GX25CrNiSi18-9 |
1.4825 |
|
270-480W |
480-650MPa |
G28Mn6 |
1.1165 |
GX2NiCrMoCuN25-20-6 |
1.4588 |
GX40CrNiSi25-12 |
1.4837 |
|
340-550 |
550-720MPa |
G26CrMo4 |
1.7221 |
GX5CrNiMoCuN 26-6-3 |
1.4515 |
GX40CrNiSi25-20 |
1.4848 |
Production Process Introduce



RFQ handle process
You can find our contact info for further communication in “Contact US” column.
The 2&3D drawing format can be PDF, STEP, DWG, DXF and soon, can be sent via email. Wechat, WhatsApp, link.
After clear the demand of customer, we can send you the quotation with PDF format for documentation.

For requirements for confidentiality of drawings, we can signed the NDA before you send drawing.
The feasibility study of drawing is most key point to ensure the part can be fully meet drawing specifications, which is include material, dimension, surface treatment, and testing request.
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