Iron and Carbon Steel

Material	Chemical Composition, %	In-House Material Code Specification	MPIF Equivalent Specification	Density (G/cc)	Ultimate Tensile Strength	Yield Strength (PSI)	Elongation % in one inch	Macro Apparent Hardness Rockwell Scale	Micro Converted Hardness Rockwell Scale	Application
Iron	Iron: 97.7 - 100 Carbon: 0.0 - 0.3 Max Other: 2.0 Max	CS 0000 F1	F-0000-10 F-0000-15 F-0000-20	6.1 6.7 7.3	18,000 25,000 38,000	13,000 18,000 25,000	2.0 3.0 6.5	40HRF 60HRF 80HRF	N/A	Mechanical components where strength is not important. Higher density iron is good for soft magnetic applications.
Steel Low Carbon	Iron: 97.4 - 99.7 Carbon: 0.3 - 0.6 Max Other: 2.0 Max	CS 0000 FS	F-0005-15 F-0005-20 F-0005-25	6.1 6.6 6.9	24,000 32,000 38,000	18,000 23,000 28,000	<1.0 1.0 1.5	25HRC 40HRC 55HRC	N/A	Mechanical components requiring medium strength, wear, hardness and good machinability.
Steel Low Carbon Heat Treated	Iron: 97.7 - 99.7 Carbon: 0.3 - 0.6 Max Other: 2.0 Max	CS 0000 FS (HT)	F-0005-50HT F-0005-60HT F-0005-70HT	6.6 6.8 7.0	60,000 70,000 80,000	60,000 70,000 80,000	<0.05 <0.05 <0.05	20HRC 22HRC 25HRC	58HRC 58HRC 58HRC	Mechanical components requiring medium strength, wear, hardness and good machinability. Heat treatable.
Steel High Carbon	Iron: 97.1 - 99.4 Carbon: 0.6 - 0.9 Max Other: 2.0 Max	CS 0008 FS	F-0008-20 F-0008-25 F-0008-30 F-0008-35	5.8 6.2 6.6 7.0	29,000 35,000 42,000 57,000	25,000 30,000 35,000 40,000	<0.05 <0.05 <1.0 1.0	35HRB 50HRB 60HRB 70HRB	N/A	Mechanical components requiring higher strength and wear.
Steel High Carbon Heat Treated	Iron: 97.7 - 99.4 Carbon: 0.6 - 0.9 Max Other 2.0 Max	CS 0008 FS (HT)	F-0008-55HT F-0008-65HT F-0008-75HT F-0008-85HT	6.3 6.6 6.9 7.1	65,000 75,000 85,000 95,000	65,000 75,000 85,000 95,000	<0.05 <0.05 <0.05 <0.05	22HRC 28HRC 32HRC 35HRC	60HRC 60HRC 60HRC 60HRC	Mechanical components requiring higher strength and wear. Heat treatable to good strengths.