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Metals and Materials Table of Contents
Table of steel composition and related specifications. Additionally, SAE ASTM and AISI common carbon and alloy steel refereces and typical applications data is given
Chart derived from SAE/ASTM/AISI Steel Materials
|Type of Steel
||C, Mn, P, S
||C, Mn, P, S
||1.25% Ni & .65% Cr
||3.00%Ni & 1.57% Cr.
||Corrosion & Heat Resistant
||1.82% Ni,.50% Cr, .25% Mo
||1.05%Ni, .45%Cr, .20%Mo
||.55%Ni, .50%Cr, .20%Mo
||.55%Ni, .50%Cr, .25%Mo
||3.25%Ni, 1.20%Cr, .12%Mo
||1.00%Ni, .80%Cr, .25%Mo
||350%Bi, 0.25% Mo
||.27-.50%Cr, Low Chromium
||.80-1.05%Cr, Low Chromium
||1.02&Cr, Medium Chromium
||1.45% Cr, High Chromium
||Corrosion & Heat Chromium
||.95% Cr, 0.15
||.65-.87% Mn, .85-2.00% Si
General: Carbon steels are regarded as steels containing not more than 0,5% manganese and 0,5% silicon, all other steels being
regarded as alloy steels.
Common Stock Steel
1010 - General purpose steel. Good weldability and forming and extruding chrematistics. Often used for general structural
and automotive bodies.
1015 - General purpose low carbon plate with predictable qualities. Has excellent welding and bending properties. Structural applications.
1020 - Good general purpose low carbon plate. Good machinability and formability. Used in automotive camshafts and similar
1025 - Plate. Higher carbon plate for greater strength. Has optimal combination of strength, weldability and good form retaining
1045 Medium carbon steel. often used for bolts, studs and shaft parts. High strength and hardness.
Hot Rolled Carbon Steel
1018, 1020 (HR,CF) - Low carbon steel. Has good hardening properties, fair machinability. Readily brazed and welded.
1117 (HR,CF) - Low carbon, high manganese steel. Good machinability, case hardening is deep and uniform. Good for
bending, broaching and most deforming without cracking.
Medium Carbon - Direct Hardening
1035 (HR) - Intermediate carbon higher in strength and hardness than low carbon steel. Used for studs, bolts etc.
1040, 1045 (HR,CF) - Used when greater strength and hardness is desired in the as rolled condition. Good for hammer forge
processes. Uses include gears, shafts, axles, bolts sand studs.
1050 (CF) - Strain hardened, stress relieved material typically 100 KSI yield strength.
1141 (HR,CF) - Improved machinability and better heat treatment response (surface hardness is deeper and more uniform) than plain
carbon steels. Uses include gears, shafts, axles, bolts, studs, pins, etc.
1215 (HR,CF) - Fast cutting steel is considered the standard screw stock. Cutting speeds and machining characteristics are
Medium Carbon Alloy Bars - Annealed
4140/4150 - Widely used general purpose alloys, low in cost. A broad range of strength and toughness is attainable through
variations in heat treatment. Used for forgings, tubing and fittings
4340 - Highly alloyed steel, nominally 1.8% Ni, .80% chromium and .25% molybdenum. High strength characteristics. Used for heavily
stressed parts operating in fatigue and other duty conditions.
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