Flange material
Our company provides pipe flanges in various materials.
We provide flange products of various standards such as American standards, European standards, German standards, and Japanese standards. The list of common standards is as follows:
lewis Liu
sales Manager
Materials for Pipe Flanges
Here’s a table outlining common materials used for pipe flanges:
| Material | Characteristics |
|---|---|
| Carbon Steel | – Strong and durable, suitable for various applications. |
| – Resistant to corrosion when properly coated or protected. | |
| – Widely used in general industrial and low-temperature apps. | |
| Stainless Steel | – Excellent corrosion resistance, ideal for corrosive envir. |
| – Available in various grades with varying corrosion resist. | |
| – Commonly used in food, pharmaceuticals, and chemical inds. | |
| Alloy Steel | – High strength and excellent resistance to high temperatures. |
| – Suitable for high-pressure and high-temperature applications. | |
| – Common in power generation, oil & gas, and petrochemicals. | |
| Duplex Stainless Steel | Combines features of austenitic and ferritic stainless steels. |
| Offers corrosion resistance and high strength. | |
| Suitable for offshore, marine, and chemical industries. | |
| Nickel Alloys | – Outstanding corrosion resistance, even in extreme conditions. |
| – Ideal for aerospace, chemical processing, and high-temp apps. | |
| – Common alloys include Inconel, Hastelloy, and Monel. | |
| Copper and Copper Alloys | Good thermal and electrical conductivity. |
| Used in plumbing, heating, and electrical applications. | |
| Not suitable for corrosive environments. | |
| PVC (Polyvinyl Chloride) | Non-corrosive and lightweight. |
| Common in water supply systems and low-pressure applications. | |
| Not suitable for high-temperature applications. | |
| PTFE (Polytetrafluoroethylene) | Excellent chemical resistance. |
| Suitable for corrosive and high-purity applications. | |
| Commonly used as gasket material. | |
| Ceramic | – Exceptional corrosion resistance and high-temperature perf. |
| – Used in harsh environments like chemical and metallurgical. | |
| Plastics | – Lightweight and corrosion-resistant for low-pressure apps. |
| – Common plastics include PVC, CPVC, and polypropylene. |
Please note that the choice of material depends on factors such as the specific application, temperature, pressure, and the nature of the fluid or gas being transported. Each material offers unique advantages and is selected based on the requirements of the piping system.
Pipes and flanges must be durable enough to withstand heat, pressure, vibrations, and corrosion, while still providing a leakproof seal. Flange class helps determine bolt-hole alignment, pressure and temperature rating, and dimensional standards, however, flange material specifications must also be considered based on your application:
The most common materials for pipe flanges (forged grades) are ASTM A105 (carbon steel high temperature to match A53/A106/API 5L pipes), A350 Grades LF1/2/3 (carbon steel low temperature to match A333 pipes), A694 Grades F42 to F80 (high yield carbon steel to match API 5L pipe grades), ASTM A182 Grades F5 to F91 (alloy steel flanges to match A335 pipes), A182 Grade F304/316 (stainless steel flanges to match A312 SS pipes), A182 Gr. F44/F51/F53/F55 (duplex and super duplex to match A790/A928 pipes) and various nickel alloy grades (Inconel, Incoloy, Hastelloy, Monel).
here’s a table outlining common materials used for pipe flanges, along with their characteristics and commonly associated steel grades:
| Material | Characteristics | Common Steel Grades |
|---|---|---|
| Carbon Steel | – Strong and durable, suitable for various applications. | ASTM A105, ASTM A350 LF2, ASTM A694 |
| – Resistant to corrosion when properly coated or protected. | ||
| – Widely used in general industrial and low-temperature applications. | ||
| Stainless Steel | – Excellent corrosion resistance, ideal for corrosive environments. | ASTM A182 F304, ASTM A182 F316, and more. |
| – Available in various grades with varying corrosion resistance. | ||
| – Commonly used in the food, pharmaceutical, and chemical industries. | ||
| Alloy Steel | – High strength and excellent resistance to high temperatures. | ASTM A182 F11, ASTM A182 F22, and more. |
| – Suitable for high-pressure and high-temperature applications. | ||
| – Commonly used in power generation, oil & gas, and petrochemical industries. | ||
| Duplex Stainless Steel | – Combines features of austenitic and ferritic stainless steels. | UNS S31803, UNS S32205, and more. |
| – Offers corrosion resistance and high strength. | ||
| – Suitable for offshore, marine, and chemical industries, as well as offshore platforms. | ||
| Nickel Alloys | – Outstanding corrosion resistance, even in extreme conditions. | Inconel 625, Hastelloy C276, and more. |
| – Ideal for aerospace, chemical processing, and high-temperature applications. | ||
| – Common alloys include Inconel, Hastelloy, and Monel. | ||
| Copper and Copper Alloys | Good thermal and electrical conductivity. | Copper C10100, Copper Alloy C70600, and more. |
| – Commonly used in plumbing, heating, and electrical applications. | ||
| – Not suitable for corrosive environments. | ||
| PVC (Polyvinyl Chloride) | Non-corrosive and lightweight. | N/A (No steel grade involved) |
| – Common in water supply systems and low-pressure applications. | ||
| – Not suitable for high-temperature applications. | ||
| PTFE (Polytetrafluoroethylene) | Excellent chemical resistance. | N/A (No steel grade involved) |
| – Suitable for corrosive and high-purity applications. | ||
| – Commonly used as gasket material. | ||
| Ceramic | – Exceptional corrosion resistance and high-temperature performance. | N/A (No steel grade involved) |
| – Used in extremely harsh environments, such as chemical and metallurgical industries. | ||
| Plastics | – Lightweight and corrosion-resistant for low-pressure applications. | N/A (No steel grade involved) |
| – Common plastics include PVC, CPVC, and polypropylene. |
Please note that the choice of material for pipe flanges depends on factors such as the specific application, temperature, pressure, and the nature of the fluid or gas being transported. Each material offers unique advantages and is selected based on the requirements of the piping system.
Steel is the most common flange material and has higher carbon content for applications requiring superior strength Stainless Steel is used when high durability and corrosion resistance are required Aluminum flanges are used for applications where corrosion resistance is important, and lightweight material is required like in irrigation Ductile Iron offers a higher yield strength and is lower cost than steel, so preferred for instances where the flange doesn’t come in contact with the medium (like with backing flanges) and the cost is an important consideration The manufacturing method is also important to understand.
