Carbon steel elbow specifications around the world

The specifications for carbon steel elbows around the world can vary based on the standards adopted by different countries and regions.

Below are some commonly recognized specifications for carbon steel elbows according to major international standards:

United States carbon steel elbows specifications

1. ASME/ANSI Standards (United States):

• ASME B16.9: This standard covers factory-made wrought steel buttwelding fittings, including elbows, and is widely used in the United States.
• It specifies the dimensions, tolerances, materials, and markings for various types of fittings.

2. ASTM International Standards:

• ASTM A234/A234M: Standard specification for piping fittings of wrought carbon steel and alloy steel for moderate and high-temperature service.
• This specification includes requirements for elbows, among other types of fittings.

European Union Carbon steel elbow specifications

3. EN Standards (European Union):

• EN 10253-1 and EN 10253-2: These European standards cover buttweld pipe fittings, including elbows, made of carbon and alloy steels.
• They specify dimensions and tolerances, as well as testing requirements.

4. JIS Standards (Japan):

• JIS B2311 and JIS B2312: Japanese Industrial Standards for steel butt-welding pipe fittings.
• JIS B2311 covers general-use carbon steel and alloy steel pipe fittings, while JIS B2312 covers specific dimensions for steel butt-welding pipe fittings.

5. GB Standards (China):

• GB/T 12459: This Chinese standard specifies the dimensions, tolerances, and materials for carbon steel butt-welding seamless pipe fittings, including elbows.
• It is commonly used in China for industrial applications.

6. ISO Standards (International):

• ISO 3419 and ISO 5251: These International Organization for Standardization (ISO) standards cover steel butt-welding fittings, including elbows.
• ISO 3419 provides general carbon steel elbows specifications, while ISO 5251 specifies dimensions for short radius elbows.

7. MSS SP Standards (Manufacturers Standardization Society):

• MSS SP-75: Standard specification for high-test, wrought, butt-welding fittings.
• It covers factory-made seamless and electric fusion-welded carbon and low-alloy steel fittings, including elbows.

Russia Carbon steel elbow specifications

8. GOST Standards (Russia):

• GOST 17375 and GOST 30753: Russian standards that cover butt-welded fittings, including elbows, made of carbon and low-alloy steel.
• GOST 17375 specifies general specifications, while GOST 30753 provides dimensions for elbows.

It’s important to note that these standards may be updated or revised, and the choice of a specific standard often depends on the industry, project specifications, and the country or region where the fittings will be used.

Engineers and professionals in the field should refer to the latest editions of the relevant standards for accurate and up-to-date information.