Table of Structural Steel Grade Comparison by Tensile Strength
Structural steel grade comparison by tensile strength is an important factor when selecting a structural steel material for a given application. The tensile strength of structural steel materials ranges from 400MPa for mild steels, up to 800MPa for some high strength structural steels. The grades listed in this table compare the tensile strength of structural steel materials from various grades and manufacturers.
The structural steel grades listed below are organized by tensile strength with the standard mechanical properties of each grade. Tensile strength is tested in accordance with standards of the ASTM A370 as reference.
Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%)
Q235A | 375-420 |235 | 26
Q235B | 385-480 | 20 | 22
Q345B | 490-590 | 375 | 21
Q345C | 490-590 | 345 | 20
Q235B-D | 385-480 | 20 | 22
Q275-A | 375-450 | 245 | 23
Q275-B | 385-480 | 20 | 22
Q345D | 490-590 | 345 | 20
Q450D | 580-660 | 450 | 15
HSLA-A70-10 | 600 | 450 (C) | 20
HSLA-A71-10 | 660 | 550 (C) | 17
High Strength Low Alloy (HSLA) steels are typically used in bridges, vehicles and other applications requiring a greater level of strength and ductility. HSLA steels are manufactured using special techniques, developed for applications requiring a greater level of strength.
Mild steels, also known as low carbon steels, typically have a yield strength of less than 250MPa and a tensile strength of between 400-500MPa. These are commonly used in applications where a lighter weight product is required such as domestic applications, work and furniture.
High Strength steels typically have a yield strength of over 500MPa and a tensile strength of 700-800MPa. These steels are used in applications requiring a higher level of strength and durability such as military equipment and construction.
Grade based on tensile strength is an essential factor when selecting a structural steel material for a given application. The comparison of tensile strengths between different grades of structural steel helps to ascertain which grade is best suited for the intended use. Knowing the tensile strength of structural materials will also help to provide quality assurance and safety checks when constructing structures.
When selecting a structural steel material, it is important to consider the grade, tensile strength of the steel, and the intended use of the material. Structural steel grade comparison by tensile strength can provide an informative reference for understanding the differences between structural steels and their respective properties.
