金屬與合金統一數字編號系統
金屬與合金統一數字編號系統(英語:Unified Numbering System for Metals and Alloys),通常稱「美國UNS編號」,於北美地區廣泛為人所接受,編號是由一個英文字母加上五個數字所組成。
- UNS K11547 相應為 T2 工具鋼(T2 tool steel)
- UNS S17400 相應為 ASTM 630級(ASTM grade 630,Cr-Ni 17-4PH precipitation hardened stainless steel)
- UNS S30400 相應為 SAE 304, Cr/Ni 18/10, Euronorm 1.4301 stainless steel
- UNS S31600 相應為 SAE 316
- UNS S31603 相應為 316L(316的低碳含量分型)。最後兩位數字"03"標示其材料所含最高碳含量為 0.03%
- UNS C90300 相應為 CDA 903
UNS編碼 | 金屬類型 |
---|---|
A00001 to A99999 | 鋁、鋁合金 |
C00001 to C99999 | 銅、銅合金(黃銅、青銅) |
D00001 to D99999 | 特定強度要求的鋼(Specified mechanical property steels) |
E00001 to E99999 | 稀有土金屬及合金(Rare earth and rare earthlike metals and alloys) |
F00001 to F99999 | 鑄鐵 |
G00001 to G99999 | AISI標準與SAE標準的碳鋼及合金鋼(除了工具鋼之外) |
H00001 to H99999 | AISI標準與SAE標準的H鋼(H-steels) |
J00001 to J99999 | 鑄鋼(除了工具鋼之外) |
K00001 to K99999 | 各式各樣的鐵合金(Miscellaneous steels and ferrous alloys) |
L00001 to L99999 | 低熔點的金屬及合金 |
M00001 to M99999 | 各式各樣的非鐵金屬及合金
M1xxxx - 鎂合金(Mg) |
N00001 to N99999 | 鎳、鎳合金 |
P00001 to P99999 | 貴金屬、貴金屬合金 |
R00001 to R99999 | 難熔金屬(Reactive and refractory metals and alloys)
R03xxx- 鉬合金(Mo) R04xxx- 鈮合金(Nb,舊稱鈳) R05xxx- 鉭合金(Ta) R3xxxx- 鈷合金(Co) R5xxxx- 鈦合金(Ti) R6xxxx- 鋯合金(Zr) |
S00001 to S99999 | 耐熱鋼、不鏽鋼 |
T00001 to T99999 | 工具鋼、熟鐵 |
W00001 to W99999 | 焊接金屬Welding filler metals |
Z00001 to Z99999 | 鋅、鋅合金 |
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
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