Alloy Steel: EN30B – 835M30
ROUND BAR

EN30 B as ROLLED: HALF GREEN, HALF YELLOW

BS 970 SAE (AISI) WERKSTOFF NO.
835 M 30   1.6747


CHEMICAL COMPOSITION
CARBON : 0,26 - 0,34
SILICON : 0,10 - 0,35
MANGANESE : 0,40 - 0,60
NICKEL : 3,90 - 4,30
CHROMIUM : 1,10 - 1,40
MOLYBDENUM : 0,20 - 0,35
SULPHUR : 0,05 MAX
PHOSPHORUS : 0,05 MAX



MECHANICAL PROPERTIES CONDITION
Z
Limited Ruling Sections; mm 152
Tensile Strength; MPa 1540
Yield Stress; MPa Min. 1125
Elongation, percent Min 7
Izod Impact Value, Joule 20
Brinell Hardness Number 444 Min.

 

STANDARD STOCK SIZES IN THE AS ROLLED OR NORMALIZED CONDITION
SIZE Kg/m SIZE Kg/m SIZE Kg/m SIZE Kg/m
20 2,466 70 30,210 130 104,195 230 326,148
25 3,853 75 34,680 140 120,841 240 355,125
30 5,549 80 39,458 150 138,721 250 385,336
35 7,553 85 44,545 160 157,833 280 493,40
40 9,865 90 49,393 170 178,179 305 586,34
45 12,485 95 55,642 180 199,757 330 685,20
50 15,413 100 61,654 190 222,570 350 769,84
55 18,650 108 71,846 200 246,641    
60 22,195 115 81,537 210 271,893    
65 26,049 120 88,781 220 298,403    


TYPICAL USES
Gears, shafts, high duty bolts, high duty spindles and other demanding maximum strength, toughness or wear resistance. This steel is shocked in the annealed condition, to render machining possible, and must be heat treated as follows: harden in air (or oil for larger sections over 2½" diameters) from a temperature of 810°C / 830°C. Temper, if desired, at a suitable temperature nor exceeding 250°C.

 
 
 
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