Alcoa High Strength 037x Alloy Family

037X Alloys
Brazing Sheet
High Strength Alloy
PRODUCT DESCRIPTION
Alcoa has developed a set of proprietary high strength brazing sheet core alloys. These alloys display an
excellent combination of strength, brazability, formability, and corrosion resistance. The Alcoa 037X family of
alloys exploit an increased volume fraction of Al12(Fe,Mn)3Si dispersoids to achieve the higher post-braze
mechanical properties. Versions with more magnesium such as alloy 0373 can age harden for further
strengthening after brazing. These alloys have deliberate titanium additions for enhanced corrosion resistance.
PRODUCT CHEMISTRIES
White 91 SPECIFICATIONS
Alloy
Si
Fe
Cu
Mn
Mg
Zn
Ti*
0370
0.6 - 0.84 0.4 -PRODUCT
0.6 0.4 - .64 AVAILABILITY
1.1 – 1.4 0.05 max 0.05 max 0.10 - 0.20
0373
0.6 - 0.84 0.4 - 0.6 0.4 - .64 1.1 – 1.4 0.3 - 0.4 0.05 max 0.10 - 0.20
PRODUCT AVAILABILITY
PHYSICAL PROPERTIES
Controlled additions of silicon and copper give the 037X family a significant
post-braze mechanical property advantage over conventional core alloys.
With the addition of magnesium, the 037X
family becomes age hardenable. The alloy
strengthens significantly in service,
depending on time and operating
temperature. See chart to the left.
ALCOA MILL PRODUCTS
1480 Manheim Pike Lancaster, PA 17601 Ph: 800-233-0481 Ext:1243
www.brazingsheet.com
v2.01
Verseci u. 1-15. POB. H-8000 Szekesfehervar, Hungary Ph: 0036-22-53-1446
AMP#194R-C
10/01
No. 111, Yanhu Road, Huaqiao Economic Development Zone, Kunshan City, Jiangsu Province, P.R. China, 215332 Ph: 0086-512-5769-8817
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