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44 Cards in this Set

  • Front
  • Back
4130
What is the first digit signify?
Major Alloy, (Molybdenum)
1220
What does the second digit signify?
Minor Alloy, (Resulfurized and rephosphorized)
1120
What does the third and fourth digit signify?
Carbon Content, (In hundredths of a percent by weight)
What is the Major Alloy?
1xxx
Carbon steels
What is the Major Alloy?
2xxx
Nickel steels
What is the Major Alloy?
3xxx
Nickel-chromium steels
What is the Major Alloy?
4xxx
Molybdenum steels
What is the Major Alloy?
5xxx
Chromium steels
What is the Major Alloy?
6xxx
Chromium-vanadium steels
What is the Major Alloy?
7xxx
Tungsten steels
What is the Major Alloy?
8xxx
Nickel-chromium-vanadium steels
What is the Major Alloy?
9xxx
Silicon-manganese steels
What is the Minor Alloy?
10XX
Plain carbon (Mn 1.00% max)
What is the Minor Alloy?
11XX
Resulfurized
What is the Minor Alloy?
12XX
Resulfurized and rephosphorized
What is the Minor Alloy?
13XX
Manganese, Mn 1.75%
What is the Minor Alloy?
14XX
Unknown
What is the Minor Alloy?
15XX
Plain carbon (Mn 1.00% to 1.65%)
What is the Minor Alloy?
23XX
Nickel steels, Ni 3.50%
What is the Minor Alloy?
25XX
Nickel steels, Ni 5.00%
What is the Minor Alloy?
31xx
Nickel-chromium steels, Ni 1.25%, Cr 0.65% or 0.80%
What is the Minor Alloy?
32xx
Nickel-chromium steels, Ni 1.25%, Cr 1.07%
What is the Minor Alloy?
33xx
Nickel-chromium steels, Ni 3.50%, Cr 1.50% or 1.57%
What is the Minor Alloy?
34xx
Nickel-chromium steels, Ni 3.00%, Cr 0.77%
What is the Minor alloy?
40xx
plain, Mo 0.20% or 0.25% or 0.25% Mo & 0.042 S
What is the Minor alloy?
44xx
plain, Mo 0.40% or 0.52%
What is the Minor alloy?
41xx
Chromium-molybdenum (Chromoly) steels, Cr 0.50% or 0.80% or 0.95%, Mo 0.12% or 0.20% or 0.25% or 0.30%
What is the Minor alloy?
43xx
Nickel-chromium-molybdenum steels, Ni 1.82%, Cr 0.50% to 0.80%, Mo 0.25%
What is the Minor alloy?
43BVxx
Nickel-chromium-molybdenum steels, Ni 1.82%, Cr 0.50%, Mo 0.12% or 0.35%, V 0.03% min
What is the Minor alloy?
47xx
Ni 1.05%, Cr 0.45%, Mo 0.20% or 0.35%
What is the Minor alloy?
46xx
Nickel-molybdenum steels, Ni 0.85% or 1.82%, Mo 0.20% or 0.25%
What is the Minor alloy?
48xx
Ni 3.50%, Mo 0.25%, Ni 3.50%, Mo 0.25%
What is the Minor alloy?
50xx
Chromium steels, Cr 0.27% or 0.40% or 0.50% or 0.65%
What is the Minor alloy?
50xxx
Chromium steels, Cr 0.50%, C 1.00% min
What is the Minor alloy?
50Bxx
Chromium steels, Cr 0.28% or 0.50%
What is the Minor alloy?
51xx
Chromium steels, Cr 0.80% or 0.87% or 0.92% or 1.00% or 1.05%
What is the Minor alloy?
51xxx
Chromium steels, Cr 1.02%, C 1.00% min
What is the Minor alloy?
51Bxx
Chromium steels, Cr 0.80%
What is the Minor alloy?
52xxx
Chromium steels, Cr 1.45%, C 1.00% min
What is the Minor alloy?
61xx
Chromium-vanadium steels, Cr 0.60% or 0.80% or 0.95%, V 0.10% or 0.15% min
What is the Minor alloy?
72xx
Tungsten-chromium steels, W 1.75%, Cr 0.75%
What is the Minor alloy?
81xx
Nickel-chromium-molybdenum steels, Ni 0.30%, Cr 0.40%, Mo 0.12%
What is the Minor alloy?
81Bxx
Nickel-chromium-molybdenum steels, Ni 0.30%, Cr 0.45%, Mo 0.12%
What is the Minor alloy?
86xx
Nickel-chromium-molybdenum steels, Ni 0.55%, Cr 0.50%, Mo 0.20%