ALTA 1.2787 stainless steel has a high content of chrome that gives good resistance to the formation of scales and corrosion. It has good corrosion resistance to oxidizing acids, most organic acids and aqueous solutions of organic salts.
Its ESR quality is very suitable for glass moulds.
Applications
²Molds for pressing of glass for the industrial glass with high requirements for the glass quality, also for highly meltable, technical, tempered glass
²Manufacturing of pressing die moulds, blowing moulds and section rolls
Chemical composition
Chemical Composition per %
C
Si
Mn
P
S
Cr
Ni
Cu
Min.
0.10
15.50
1.00
Max.
0.25
1.00
1.00
0.030
0.030
18.00
2.50
0.25
Basic melting process :
IM/EAF + LF + VD + (ESR)
Hardness :
Max 245 HB (annealed)
Reduction ratio :
5 : 1 minimum or required
Grain size :
≥ 5.0 per ASTM E112
Non-metallic inclusion :
≤ 1.0 (thick), ≤ 1.5 (thin) per ASTM E45 method A (more pure by ESR route)
