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This standard defines property classes, the metric equivalent of a screw grade, that are almost identical to those defined by ISO 898-1, [2] except for the addition of the 8.8.3 and 10.9.3 classes. These two additional standards are fasteners that have the same mechanical properties as their base property class (i.e. 8.8 and 10.9), but are made ...
The imperial grades are made to the same strength specifications as ASTM A354 grade BD. The metric grades are made to the same strength specifications as ASTM F568M property class 10.9. [ 5 ] Also, unlike their weaker counterparts they may not be coated by hot-dip galvanization , mechanical deposition , or electroplating .
It defines mechanical properties for bolts that range from 1 ⁄ 2 to 1 + 1 ⁄ 2 inches (13 to 38 mm) in diameter. [1] The equivalent metric standard is ASTM A325M, which is titled Standard Specification for Structural Bolts, Steel, Heat Treated 830 MPa Minimum Tensile Strength. It defines mechanical properties for sizes M12–36. [2]
ISO 898 is an international standard that defines mechanical and physical properties for metric fasteners. This standard is the origin for other standards that define properties for similar metric fasteners , such as SAE J1199 and ASTM F568M . [ 1 ]
Grade C Si Mn P S Cr Cu V Ni; ASTM A242: 0.12: 0.25–0.75: 0.20–0.50: 0.01–0.20: ... The mechanical properties of weathering steels depend on which alloy and how ...
SAE Grade 0 [48] Strength and hardness is not specified SAE grade 1 ASTM A307 [49] Low carbon steel 1 ⁄ 4 – 1 + 1 ⁄ 2: 33 230 60 410 B70–100 ASTM A307 - Grade B [49] Low or medium carbon steel 1 ⁄ 4 –4 60 minimum 100 maximum 410 minimum 690 maximum B69–95 SAE grade 2 Low or medium carbon steel 1 ⁄ 4 – 3 ⁄ 4: 55 380 57 390 74 ...
Grade EN 1.4313 (CA6NM) with a low C, 13%Cr and 4%Ni offers good mechanical properties, good castability, and good weldability. It is used for nearly all the hydroelectric turbines in the world, including those of the huge "Three Gorges" dam in China. Additions of B, Co, Nb, Ti improve the high temperature properties, particularly creep ...
Steel fasteners (grade 2,5,8) - the level of strength; Stainless steel fasteners (martensitic stainless steel, austenitic stainless steel), Bronze and brass fasteners - water proof usage; Nylon fasteners - used for the light material and water proof usage. In general, steel is the most commonly used material of all fasteners: 90% or more. [8]