sae 4145h round alloy bar
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AISI 4145 Steel Round Bar
AISI 4145 Steel is defined as Cr-Mo series alloy steel as per USA standard ASTM A29.Like AISI 4130 steel, it is widely used in the oil and gas industry.Compared with AISI 4140 steel, AISI 4145 has a higher carbon content, which means higher strength and hardenability. AISI 4145 steel is usually used in the quenched and tempered condition, and can be used for oil drill collars, shafts, spindles, and high-load control wheels, bolts, studs, gears, etc.
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