SAE8620H

SAE认证
美国机动车工程师学会（ SAE）成立于1905年，是国际上最大的汽车工程学术组织。研究对象是轿车、载重车及工程车、飞机、发动机、材料及制造等。SAE所制订的标准具有权威性，广泛地为汽车行业及其他行业所采用，并有相当部分被采用为美国国家标准。
SAE机动车标准是机车行业的技术标准。美国机动车工程师学会（SAE）的认证：规定了市场上销售的汽车配件（SAE认证）的标准，这些配件不作为供应商的批量销售。

SAE8620对应于国标20CrNiMo 此钢种适合于加工齿轮，淬透性比较好。

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.