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Very easily cut, bright red colour dulls to brown oxide.
Usage will assist final checks.
Copper
Lead alloys will show boiling lead under oxy flame. Higher zinc alloys fume. Colour variation assists with usage check.
Bronze
Brass
COLOUR
Red to yellow
Won't oxy cut
Aust. stainless steel
Oxy cuts
Aust. manganese steel
OXY CUT TEST
Sparks
Austenitic Manganese and Stainless Steel
Copper, brasses, bronzes, lead, lead-tin, zinc alloys Aluminium alloys Magnesium & alloys
White
Magnesium burns brightly
Hard
Oxy cuts
High carb.
stee.
Fractured surface marks paper, chips smoothly & brittle
Chips tough & rough
Malleable or SG iron
Dull grey
Nickel
Soft silvery
Low alloy high tensile
Ability to harden, common usage, will confirm spark test selection
Med. carb steel
SPARK TEST
Work hardened Aust. stainless or hard ferrite stainless
Won't cut
OXY CUT TEST
Work hardened Aust. Mang. steel
Grey cast iron
Mild steel
Aluminium drosses
OXY FLAME
Aluminium & alloys Magnesium & alloys
Lead, tin & zinc alloys Lead cuts with penknife, common usage.
Light
Heavy
RELATIVE WEIGHT
Monel
Cuts easily
HACKSAW-FILE TEST
SPARK TEST
No Spark
Very Slightly Magnetic
Non Magnetic
MAGNETIC TEST
METAL IDENTIFICATION
Cst irons, Chromium steels, High alloy tool and die steels, Nickel
Stainless (Ferritic)
Bright chrome
COLOUR CHECK Easily separated by colour, chip, usage & fracture.
Files hard White cast iron, Martensitic stainless steel, High alloy tool & die steels
Files soft Malleable & SG irons Grey cast iron Ferritic Stainless Nickel
FILE TEST
Won't oxy cut
Oxy cuts Low alloy & plain carbon steels
OXY CUT TEST
Strongly Magnetic
SOLUTIONS
2.03
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