CALCULATION OF CORROSION INDICES ACCORDING TO ASTM G 101

Enter desired composition in right-hand column. Corresponding corrosionindices appear at the bottom.

Element Composition, weight %

Carbon 0.100Manganese 1.180Phosphorus 0.012

Sulfur 0.011Silicon 0.360Nickel 0.310

Chromium 0.530Copper 0.300

Aluminum 0.020Vanadium 0.040

Cobalt 0.000Arsenic 0.002

Molybdenum 0.005Tin 0.002

Tungsten 0.000

Corrosion Index 6.3.1 6.67

Corrosion Index 6.3.2 6.15

B values Bethlehem 0.230" Columbus 0.369" Pittsburgh 0.464

A values Bethlehem 18.417" Columbus 15.824" Pittsburgh 13.927

Years to Bethlehem 751510-mil loss Columbus 153

Pittsburgh 43

21-yr loss Bethlehem 2.5814-yr loss Columbus 4.119-yr loss Pittsburgh 4.86

BLP CI Bethlehem 7.42" Columbus 5.89" Pittsburgh 5.14