Uniform numerical code for English names, prefixes and letters of steel and alloy types
Alloy structural steel A11OY Structural1STEE1AAXX XX XX.
Bearing steel 1bbx x x x x x x
Cast iron, cast steel and cast alloy cast iron, cast steel 1 and dong A 1 1Oy C CX X X X X x.
Steel and pure iron for electrical purposes.
Ferroalloy and pig iron ferroalloy and pig iron FX x x x x x x x x
Heat-resistant and corrosion-resistant superalloy a11oyhhxx xx.
Precision alloys and other special items
Reasonable energy materials precision 1 1OY and other special 1 physics 1 characteristic materials 1SJXXX.
Low alloy steel1OWA11oysteee11XXX.
Misce11a neous material1mm mxxx xx.
Powder and powder material powder and powder material
Rapid quenching Meta 1s and a11oysqqxx.
Stainless steel, corrosion-resistant steel and heat-resistant steel Stain 1ess, corrosion-resistant and thermal resizing steel1S.
Tool too1STEE1TT {\ f1}. }
una 1 1OYSEE 1UU 1UU 1UU 1UU 1UU 6548+0UU 1UU 65438
Steel and alloy for welding steel 1 and A 1 1OY.