ASTM A455 high-strength manganese carbon steel for pressure vessel plates

ASTM A455 high-strength manganese carbon steel for pressure vessel plates

 

 

ASTM A455 is a specification for pressure vessel plates, carbon steel, high-strength manganese. This grade of steel is designed for use in welded pressure vessels, where high-strength and toughness are required at low and intermediate temperatures. The material has good weldability and impact resistance, making it ideal for use in a variety of industries.

 

As a manufacturer, it is important to understand the chemical composition and mechanical properties of ASTM A455 in order to produce high-quality products. The chemical composition of A455 includes carbon, manganese, phosphorus, sulfur, and silicon. The material is also available in three different grades, each with different levels of tensile strength and yield strength.

 

In terms of mechanical properties, ASTM A455 has a minimum tensile strength of 70-90 ksi, depending on the grade, and a minimum yield strength of 45-60 ksi. The material also has good elongation and reduction of area values, which ensure it can withstand the stresses and strains of high-pressure service.

 

Overall, ASTM A455 is an excellent material for use in pressure vessel applications that require high strength and toughness at low and intermediate temperatures. As a manufacturer, it is important to adhere to the ASTM A455 specification to ensure the production of high-quality and reliable products. Additionally, as a manufacturer, you may also need to comply with additional regulations and standards, such as those set by ASME, to ensure your products meet the required safety standards.

 

General Product Description

The ASTM A455 specification is the Standard Specification for Pressure Vessel Plates, Carbon Steel, High-strength Manganese plates used in the application of welded pressure vessels. There is one chemistry composition defined while there are multiple strength levels available dependent on plate thickness.

Dimension Range

GRADE	PRODUCT TYPE	THICKNESS (in)	WIDTH (in)	LENGTH (in)
ASTM A455	Plate	0.1875 - 0.750	72 - 120	240 - 1020

Width: Please inquire for plate widths less than 72 in. For thicknesses less than 0.25 in., maximum width is 96 in.

Length: Please inquire for plate lengths less than the listed minimum or greater than the listed maximum.

 

Mechanical Properties

Tensile testing is performed in the transverse direction.

GRADE	THICKNESS (in)	YIELD STRENGTH (MIN ksi)	TENSILE STRENGTH (ksi)	ELONGATION IN 2" 1) (MIN %)	ELONGATION IN 8" 1) (MIN %)
ASTM A455	0.187 - 0.375	38	75 - 95	22	15
ASTM A455	0.376 - 0.580	37	73 - 93	22	15
ASTM A455	0.581 - 0.750	35	70 - 90	22	15

1) Refer to ASTM A20/A20M for Elongation adjustments based on plate thickness.