金属与合金统一数字编号系统
外观
金属与合金统一数字编号系统(英语:Unified Numbering System for Metals and Alloys),通常称“美国UNS编号”,于北美地区广泛为人所接受,编号是由一个英文字母加上五个数字所组成。
- UNS K11547 相应为 T2 工具钢(T2 tool steel)
- UNS S17400 相应为 ASTM 630级(ASTM grade 630,Cr-Ni 17-4PH precipitation hardened stainless steel)
- UNS S30400 相应为 SAE 304, Cr/Ni 18/10, Euronorm 1.4301 stainless steel
- UNS S31600 相应为 SAE 316
- UNS S31603 相应为 316L(316的低碳含量分型)。最后两位数字"03"标示其材料所含最高碳含量为 0.03%
- UNS C90300 相应为 CDA 903
UNS编码 | 金属类型 |
---|---|
A00001 to A99999 | 铝、铝合金 |
C00001 to C99999 | 铜、铜合金(黄铜、青铜) |
D00001 to D99999 | 特定强度要求的钢(Specified mechanical property steels) |
E00001 to E99999 | 稀有土金属及合金(Rare earth and rare earthlike metals and alloys) |
F00001 to F99999 | 铸铁 |
G00001 to G99999 | AISI标准与SAE标准的碳钢及合金钢(除了工具钢之外) |
H00001 to H99999 | AISI标准与SAE标准的H钢(H-steels) |
J00001 to J99999 | 铸钢(除了工具钢之外) |
K00001 to K99999 | 各式各样的铁合金(Miscellaneous steels and ferrous alloys) |
L00001 to L99999 | 低熔点的金属及合金 |
M00001 to M99999 | 各式各样的非铁金属及合金
M1xxxx - 镁合金(Mg) |
N00001 to N99999 | 镍、镍合金 |
P00001 to P99999 | 贵金属、贵金属合金 |
R00001 to R99999 | 难熔金属(Reactive and refractory metals and alloys)
R03xxx- 钼合金(Mo) R04xxx- 铌合金(Nb,旧称钶) R05xxx- 钽合金(Ta) R3xxxx- 钴合金(Co) R5xxxx- 钛合金(Ti) R6xxxx- 锆合金(Zr) |
S00001 to S99999 | 耐热钢、不锈钢 |
T00001 to T99999 | 工具钢、熟铁 |
W00001 to W99999 | 焊接金属Welding filler metals |
Z00001 to Z99999 | 锌、锌合金 |
中国的ISC(统一数字代号)设计和UNS类似,[2]但编码表不互通。一个材料可能UNS/ISC相同(如S31603),可能稍有不同(S30400/S30408、S17400/S17440),也可能完全不一样(S20200/S35450、S41026[3]/S45710)。[1]
- ^ 1.0 1.1 Stainless steel grades listed in the international standard ISO 15510:2010 Comparative designations of grades with similar composition from other important standards. (listed by type of steel structure and by increasing intermediate 3-digits code of the ISO name) (PDF). International Stainless Steel Forum. [10 March 2023]. (原始内容存档 (PDF)于2023-05-10).
- ^ GB/T 17616-2013 钢铁及合金牌号统一数字代号体系. openstd.samr.gov.cn.
- ^ ASTM A182/A182M − 12a: Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service