SAE8620H

SAE認證
美國機動車工程師學會（ SAE）成立于1905年，是國際上最大的汽車工程學術組織。研究對象是轎車、載重車及工程車、飛機、發動機、材料及制造等。SAE所制訂的標準具有權威性，廣泛地為汽車行業及其他行業所采用，并有相當部分被采用為美國國家標準。
SAE機動車標準是機車行業的技術標準。美國機動車工程師學會（SAE）的認證：規定了市場上銷售的汽車配件（SAE認證）的標準，這些配件不作為供應商的批量銷售。

SAE8620對應于國標20CrNiMo 此鋼種適合于加工齒輪，淬透性比較好。

SAE certification
American Society of Automotive Engineers (SAE) was founded in 1905, is the world's largest automotive engineering academic organization. The research object is the car, truck and engineering vehicle, aircraft, engine, materials and manufacturing, etc.. The standards developed by SAE are authoritative and widely used in the automotive industry and other industries, and a considerable part of the United States national standards are adopted.
SAE motor vehicle standard is the technical standard of the locomotive industry. The American Society of Automotive Engineers (SAE) certification: the market for the sale of auto parts (SAE certification) standards, these parts are not as a supplier of bulk sales.
SAE8620 corresponds to the national standard 20CrNiMo of this kind of steels suitable for machining gear, good hardenability.