149
2.5 | 600 | 5.0 | 143
| | |
2.6 | 555 | 5.1 | 137
2.7 | 512 | 5.2 | 131
2.8 | 477 | 5.3 | 126
2.9 | 444 | 5.4 | 121
3.0 | 418 | 5.5 | 116
| | |
3.1 | 387 | 5.6 | 112
3.2 | 364 | 5.7 | 107
3.3 | 340 | 5.8 | 103
3.4 | 321 | 5.9 | 99
3.5 | 302 | 6.0 | 95
| | |
3.6 | 286 | 6.1 | 92
3.7 | 269 | 6.2 | 89
3.8 | 255 | 6.3 | 86
3.9 | 241 | 6.4 | 83
4.0 | 228 | 6.5 | 80
| | |
4.1 | 217 | 6.6 | 77
4.2 | 207 | 6.7 | 74
4.3 | 196 | 6.8 | 71.5
4.4 | 187 | 6.9 | 69
------------------------------------------------------------------------

CHAPTER III

ALLOYS AND THEIR EFFECT UPON STEEL

In view of the fact that alloy steels are coming into a great deal
of prominence, it would be well for the users of these steels to
fully appreciate the effects of the alloys upon the various grades
of steel. We have endeavored to summarize the effect of these alloys
so that the users can appreciate their effect, without having to
study a metallurgical treatise and then, perhaps, not get the crux
of the matter.

NICKEL

Nickel may be considered as the toughest among the non-rare alloys
now used in steel manufacture. Originally nickel was added to give
increased strength and toughness over that obtained with the ordinary
rolled structural steel and little attempt was made to utilize its
great possibilities so far as heat treatment was concerned.

The difficultie