Comparative Physical  Properties & Machinability

RANDOM PHYSICAL PROPERTIES  BASED ON 1" ROUND (FOR COMPARISON ONLY)   STAINLESS     TENSILE YIELD ELONG RED. OF AREA BHN 302-304 89,800 43,100 61 77 165 303 S 90,000 41,500 56 61 177 316 94,800 66,000 45 72.5 200 416 95,800 77,200 21 56.3 203 CARBON STEELS     TENSILE YIELD ELONG RED. OF AREA BHN С-1018 78,000 68,000 22 50 165 C-12L14 78,000 68,000 15 45 165 C-1144 (Stressproof) 110,000 100,000 12 28 230 С-1045 110,000 85,000 19 32 223 ALLOY STEEL     TENSILE YIELD ELONG RED. OF AREA BHN HR-4140  Ann 89,000 62,000 26 58 187 HR-4140 H.T. 125,000 100,000 16 45 302 HR-4340  Ann 101,000 69,000 21 45 207   MACHINABILITY RATINGS (FOR COMPARISON ONLY)   STAINLESS GRADE APPROXIMATE SURF. FT. PER MIN. % RELATIVE  SPEED BASED  ON C-1215 as 100% 303 150 75 304 70 40 316 60 36 416 Ann 150 75 440С 65 40 15-5РН 75 45 17-4РН 75 45 ALLOY  GRADE APPROXIMATE SURF. FT. PER MIN. % RELATIVE SPEED BASED ON C-1215 as 100% Е-4130 120 72 Е-4140 110 66 Е-4340 95 57 CARBON  GRADE APPROXIMATE SURF. FT. PER MIN. % RELATIVE SPEED BASED ON C-1215 as 100% С-1018 130 78 С-1045 95 57 С-1144 125 76 C-12L14 325 198           4101 West Marginal Way SW #B9 * SEATTLE * WA * 98106 - 1270 (206) 382 - 0305 PHONE * TOLL FREE (800) 785 - 9778 * (206) 382 -9204 FAX