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A36 steel has a Poisson's ratio of 0.26 and a shear modulus of 11,500 ksi (79.3 GPa). [ 7 ] A36 steel in plates, bars, and shapes with a thickness of less than 8 inches (203 millimeters) has a minimum yield strength of 36 ksi (250 MPa ) and ultimate tensile strength of 58–80 ksi (400–550 MPa).
The ultimate tensile strength of a material is an intensive property; therefore its value does not depend on the size of the test specimen.However, depending on the material, it may be dependent on other factors, such as the preparation of the specimen, the presence or otherwise of surface defects, and the temperature of the test environment and material.
Yield Strength Fy (ksi) Tensile Strength Fu (ksi) Fu / Fy Minimum Elongation (%) in 2-in. Gage Length Carbon structural steel A36 36 58-80 1.61 23 A36 50 70 1.4 21 High-strength low-alloy Structural steel A242 46 67 1.46 21 Low and intermediate tensile strength carbon steel plates A283 A 24 45-60 1.88 30 B 27 50-65 1.85 28 C 30 55-75 1.83 25 D 33
Minimum Yield Strength: B: Steel for reinforced concrete: Characteristic Yield Case: R: Steel for rail use: Minimum Yield Case: H: High Tensile Strength Flat products: Minimum Yield Case: If followed by T then the given mechanical property is minimum tensile strength D: Flat Products for Cold Forming: Followed by C, D or X and two numbers ...
MIL-DTL-46177 is an older, now-replaced standard for a high hardness steel RHA. [4] It specifies a harder steel that is nearly identical to AR500 in terms of tensile and yield strength. [5] The Brinell hardness of AR500 is in the 477-534 range. MIL-DTL-46100E specifies a steel of identical hardness. [3]
The 32 grades have yield strength of 45,500 psi (315 MPa), and ultimate tensile strength of 64,000 - 85,000 psi (440-590 MPa). The 36 grades have yield strength of 51,000 psi (355 MPa), and ultimate tensile strength of 71,000 - 90,000 psi (490-620 MPa). Per Steel Vessel Rules Part 2 Chapter 1 Section 3 Table 2 (pg 36).
Mild steel has a relatively low tensile strength, but it is cheap and easy to form. Surface hardness can be increased with carburization. [3] The density of mild steel is approximately 7.85 g/cm 3 (7,850 kg/m 3; 0.284 lb/cu in) [4] and the Young's modulus is 200 GPa (29 × 10 ^ 6 psi). [5]
A common type of micro-alloyed steel is improved-formability HSLA. It has a yield strength up to 80,000 psi (550 MPa) but costs only 24% more than A36 steel (36,000 psi (250 MPa)). One of the disadvantages of this steel is that it is 30 to 40% less ductile.