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Metal Properties Comparison Chart


Aluminum
General Material Strengths Tensile Strength PSI (ultimate break strength)Yield Strength PSI (begins to stretch/break)Weldable Bendable/radiusCommon Uses
Aluminum Sheet 3003 22,000 21,000 yes yes Tread Plate, Bright, Polishable
Aluminum Sheet 5052-H32 33,000 28,000 yes yes, 1T Trailers, Bent Aluminum 
Aluminum Structural 6061-T6 (Tempered)45,000 40,000 yes prefer not in Temper stateStructural Aluminum 


Stainless Steel
General Material Strengths Tensile Strength PSI (ultimate break strength)Yield Strength PSI (begins to stretch/break)WeldableBendable/radiusCommon Uses
Stainless 304 90,000 40,000 yes generally increase radius General Stainless 



Steel
General Material Strengths Tensile Strength PSI (ultimate break strength)Yield Strength PSI (begins to stretch/break)WeldableBendable/radiusCommon Uses
A36 Structural Angle, Flat, Rod, Beam 58-80,000 36,000 yes yes, 1T General Hot Rolled Steel 
Sheet 1011 CS Type B 53,000 30-50,000 yes yes, 1T General Steel Sheet 
Sheet Grade 50 65,000 50,000 yes yes, 1.5T Higher Strength Loader Buckets 
1018 Cold Rolled Shaft 
1045 TG&P Cold Rolled Shaft
70-80,000 
100,000
45-70,000 
85,000
yes 
preheat/postheat
yes 

Round, Square, Hex Shaft, General Purpose
Higher strength, gearbox shafting, Bearing surface
Stressproof115,000100,000not usuallynot preferredShafting, Strong, but doesn't flex far before breaking
4140/4142 Annealed Cold Rolled Shaft 105-120,000 85-95,000 preheat/postheat yes, increase radius Shafting, Strong, with more flex-often called Chrome Moly 
4140/4142 Heat Treated Cold Rolled Shaft 125,000 105,000  Shafting, Hardened, with more flex-often called Chrome Moly 


Bolts
General Material Strengths Tensile Strength PSI (ultimate break strength)Yield Strength PSI (begins to stretch/break)Common Uses
Grade 2 (better than A307) 74,000 to 3/4" 55,000 to 3/4" Low/Medium Carbon Steel 
Grade 5120,000 to 1"92,000 to 1"Quenched and Tempered
Grade B7 (Threaded Rod)125,000 105,000 Threaded Rod-Higher Strength 
Grade 8 150,000 to 1-1/2" 130,000 to 1-1/2" Quenched and Tempered 
FNL Grade 9 180,000 to 1-1/4" 140,650 Socket Head Set Screws, some Bolts
4.6 Metric 58,000 --- --- 
8.8 Metric 116,000 --- Similar to Grade 5 USA 
10.9 Metric 150,800 --- Similar to Grade 8 USA 
12.9 Metric 177,000 --- --- 


Reference numbers above pulled from other reference books, suppliers, and general knowledge.  No Warranty or Guarantee's.