Question

show the correlation between weight percent carbon, volume percent pearlite, and tensile strength for hot rolled carbon

steels by

1- Looking up the tensile strengths in psi for the following hot rolled AISI carbon steels in matweb.com: 1006, 1010,

1020, 1025, 1030, 1035, 1040, 1045, 1050, 1055, 1060, 1065, and 1070.

2- Calculating the volume percent pearlite for each steel (assume that vol.% pearlite = wt.% pearlite) using the lever

rule and the nominal carbon content indicated by the AISI number.

3- Recording the values in an EXCEL Worksheet that has columns for wt. %C, vol.% pearlite, and tensile strength.

4- Plotting EXCEL graphs of vol.% pearlite versus wt. %C, tensile strength versus wt. %C, and tensile strength

versus vol.% pearlite

Answer 1

SAE 1006

C=0.08% ,tensile strength 295 mpa or 42800 psi

SAE 1010

C=0.10% ,tensile strength 325 mpa or 47100 psi

SAE 1020

C0.20% ,tensile strength hot rolled=380 Mpa or 55100 psi , pearlite 70%

SAE 1025

C=0.25% ,tensile strength 400mpa or 58000 psi

SAE 1030

C=0.30% ,tensile strength 470mpa or 68200 psi

Pearlite =

SAE 1035

C=0.35% ,tensile strength 495 mpa or 72000psi

SAE 1040

C=0.40% ,tensile strength 525 mpa or 76000 psi

SAE 1045

C=0.45% ,tensile strength 565 mpa or 81900 psi

SAE 1050

C=0.50% ,tensile strength 620 mpa or 90000 psi

SAE 1055

C=0.55% ,tensile strength 650 mpa or 94000 psi

SAE 1060

C=0.6/% ,tensile strength 675mpa or 98000 psi

SAE 1065

C=0.65% ,tensile strength 690mpa or 100000 psi

SAE 1070

C=0.70% ,tensile strength 703 mpa or 102000 psi

Pearlite