Steel numbering system | Penomoran Besi Baja

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Jembatan keledainya, cacah nanas dadi kripik nanas, moly ora gowo kripik, kripik vanas di tumis ambek silikon.

Penomoran ini penting untuk mengetahui jenis dari baja yang digunakan.  Key to the AISI/SAE steel numbering system

• Carbon Steels:
  • The first digit is "1" as in 10xx, 11xx, and 12xx
  • The second digit describes processing: "1" is resulfurized and "2" is resulfurized and rephosphorized.
• Manganese Steel:
  • The first digit is "1" as in 13xx and is, indeed, a carbon steel. However, since manganese is a normal by-product of carbon steel making the AISI/SAE has decided not to classify it as an alloy steel.
  • The second digit is always "3"
• Nickel Steel:
  • The first digit is "2" as in 23xx and 25xx
  • The second digit designates the percentage of nickel in the steel.
• Nickel-Chromium Steel:
  • The first digit is "3" as in 31xx, 32xx, and 33xx,
  • The second digit designates the percentage of nickel and chromium in the steel .
• Molybdenum Steels:
  • The first digit is "4" as in 40xx and 44xx.
  • The second digit designates the percentage of molybdenum in the steel.
• Chromium Steel:
  • The first digit is "5" as in 51xx and 52xx
  • The second digit designates the percentage of chromium in the steel.
• Chromium-Vanadium Steel:
  • The first digit is "6" as in 61xx
  • The second digit designates the percentage of chromium and vanadium in the steel.
• Tungsten-Chromium Steel:
  • The first digit is "7" as in 72xx
  • The second digit designates the percentage of tungsten and chromium
• Silicon-Manganese Steel:
  • The first digit is "9" as in 92xx
  • The second digit designates the percentage of silicon and manganese in the steel.
• Triple Alloy Steels:
  • These steels contain three alloys
  • The first digit can be "4", "8", or "9" depending on the predominate alloy
  • The second digit designates the percentage of the reaming two alloys.

Jembatan keledainya, cacah nanas dadi kripik nanas, moly ora gowo kripik, kripik vanas di tumis ambek silikon.

10XX	Carbon steels	Plain carbon, Mn 1.00% max
11XX		Resulfurized free machining
12XX		Resulfurized / rephosphorized free machining
15XX		Plain carbon, Mn 1.00-1.65%
13XX	Manganese steel	Mn 1.75%
23XX	Nickel steels	Ni 3.50%
25XX		Ni 5.00%
31XX	Nickel-chromium steels	Ni 1.25%, Cr 0.65-0.80%
32XX		Ni 1.75%, Cr 1.07%
33XX		Ni 3.50%, Cr 1.50-1.57%
34XX		Ni 3.00%, Cr 0.77%
40XX	Molybdenum steels	Mo 0.20-0.25%
44XX		Mo 0.40-0.52%
41XX	Chromium-molybdenum steels	Cr 0.50-0.95%, Mo 0.12-0.30%
43XX	Nickel-chromium-molybdenum steels	Ni 1.82%, Cr 0.50-0.80%, Mo 0.25%
47XX		Ni 1.05%, Cr 0.45%, Mo 0.20-0.35%
46XX	Nickel-molybdenum steels	Ni 0.85-1.82%, Mo 0.20-0.25%
48XX		Ni 3.50%, Mo 0.25%
50XX	Chromium steels	Cr 0.27-0.65%
51XX		Cr 0.80-1.05%
50XXX		Cr 0.50%, C 1.00% min
51XXX		Cr 1.02%, C 1.00% min
52XXX		Cr 1.45%, C 1.00% min
61XX	Chromium-vanadium steels	Cr 0.60-0.95%, V 0.10-0.15%
72XX	Tungsten-chromium steels	W 1.75%, Cr 0.75%
81XX	Nickel-chromium-molybdenum steels	Ni .30%, Cr 0.40%, Mo 0.12%
86XX		Ni .55%, Cr 0.50%, Mo 0.20%
87XX		Ni .55%, Cr 0.50%, Mo 0.25%
88XX		Ni .55%, Cr 0.50%, Mo 0.35%
92XX	Silicon-manganese steels	Si 1.40-2.00%, Mn 0.65-0.85%, Cr 0-0.65%
93XX	Nickel-chromium-molybdenum steels	Ni 3.25%, Cr 1.20%, Mo 0.12%
94XX		Ni 0.45%, Cr 0.40%, Mo 0.12%
97XX		Ni 0.55%, Cr 0.20%, Mo 0.20%
98XX		Ni 1.00%, Cr 0.80%, Mo 0.25%