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In addition to the descriptive steel grade naming system indicated above, within EN 10027-2 is defined a system for creating unique steel grade numbers. While less descriptive and intuitive than the grand names they are easier to tabulate and use in data processing applications.
ASTM A325 is an ASTM International standard for heavy hex structural bolts, titled Standard Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength. It defines mechanical properties for bolts that range from 1 ⁄ 2 to 1 + 1 ⁄ 2 inches (13 to 38 mm) in diameter.
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.
The Japanese equivalent grade of this material is SUS304. Type 304L—same as the 304 grade but lower carbon content to increase weldability. Is slightly weaker than 304. Type 304LN—same as 304L, but also nitrogen is added to obtain a much higher yield and tensile strength than 304L.
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).
ASTM A992 is currently the most available steel type for structural wide-flange beams. The industry's technical institute describes the standard thus: "ASTM A992 (Fy = 50 ksi, Fu = 65 ksi) is the preferred material specification for wide-flange shapes, having replaced ASTM A36 and A572 grade 50. There are a couple of noteworthy enhancements ...
AISI grade [7] C Cr Mo Ni Others Melts at [8] Remark 1.4310 X10CrNi18-8 301 0.10 17.5 NS: 8 NS: 1420 For springs 1.4301 X5CrNi18-10 304 < 0.07 18.5 NS: 9 NS: 1450 A very common austenitic stainless steel grade 1.4307 X2CrNi18-9 304L < 0.030 18.5 NS: 9 NS: 1450 Similar to the above but not susceptible to intergranular corrosion thanks to a lower ...
Specific strength: Strength per unit density (Nm/kg) Specific weight: Weight per unit volume (N/m^3) Surface roughness: The deviations in the direction of the normal vector of a real surface from its ideal form; Tensile strength: Maximum tensile stress of a material can withstand before failure (MPa)