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:

  • ASME/ANSI B16.47 Flange  Class 150-900 Series A – 26″to 60″
  • ASME/ANSI B16.47 Flange  Class 75-900 Series B – 26″to 60″
  • ASME/ANSI B16.5 Flange  Class 150-2500 – 1/2″to 24″
flange standard

lewis Liu

sales Manager

Materials for Pipe Flanges

There are many kinds of flange materials, our company produces flanges mainly carbon steel flanges, stainless steel flanges, alloy steel flanges, and so on.

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:

MaterialCharacteristicsCommon Steel Grades
Carbon SteelCarbon steel flanges are often used in some of the medium corrosive requirements are not high in the medium of low pressure in the general industrial pipeline. But carbon steel flanges are cheap and popular among users.ASTM A105, ASTM A350 LF2, ASTM A694
Stainless SteelStainless steel flanges have good corrosion resistance, not easy to rust, mostly used in corrosive pipelines, such as the pharmaceutical industry, the chemical industry and the food industry with high safety requirements. More expensive, but can effectively solve the problem.ASTM A182 F304, ASTM A182 F316, and more.
Alloy SteelAlloy steel flanges have higher strength than carbon steel flanges and corrosion resistance, but a little worse than carbon steel flanges, mostly used in electric power, petrochemical and other industries with certain requirements. Its price is more moderate.ASTM A182 F11, ASTM A182 F22, and more.
common materials used for pipe flanges

Different flange materials are suitable for different occasions. When we choose the flange material, we need to consider the pipeline pressure, temperature, medium and corrosive, origin, price, and other factors to comprehensively choose.

When we purchase, we can let the supplier provide the material certificate to prove the real material of the purchased flanges.

There are many common flange materials, but our company produces flange materials are mainly three is carbon steel, stainless steel, alloy steel.

The correct use of flange material can guarantee the sealing and corrosion resistance of the pipeline. It is conducive to the trouble-free operation of the pipeline for a long time, so the material of the pipeline flange is extremely important.

If the wrong flange material is used, choosing a material higher than the requirement of pipeline will result in waste of cost, but if the flange material lower than the requirement is chosen, it may cause leakage of pipeline due to non-corrosion resistance or poor pressure tolerance, which are irreversible consequences.
It is recommended to consult professional technicians when choosing flange materials. If you have any questions in this regard, YanHao Company is pleased to provide you with highly detailed solutions.

ASTM is an acronym for American Society for Testing and Materials, which was founded in 1898 and is one of the oldest and largest non-profit standards academic organizations in the United States.
ASTM flange standard contains flange material, size, pressure level and other aspects of the provisions for the design, manufacture and use of the flange provides an important guide and reference.

Common flange material standards include ASTM, ANSI, DIN, BS, etc. These standards specify the chemical composition, mechanical properties and manufacturing requirements of the materials.

In order to ensure the quality of flange materials, we should explicitly ask the suppliers to provide material certificates and quality inspection reports when purchasing counseling, and we can also ask for third-party inspection and testing. We, YanHao Company, can provide all these for you.