Penna Flame Industries: Hardness and Case Depth Chart

Hardness and case depth chart

* For modified grades of 52100 and Work Roll materials, please inquire us at 1-800-245-5084 and ask for Bruce Curry, Sales Manager or Jim Orr, President.

Note: This chart is a general guide. Hardness and case depth's may vary depending on the flame hardening technique used and acutal chemistry of the material.

MATERIAL (ASM)	HARDNESS (Rc)	Case Depth Inches
1045	50/60	1/8
1055	55/62	1/8
1060	58/65	1/8
4130	40/48	3/16
4140	50/55	3/16
4150	56/60	3/16
4340	50/55	1/4
6150	55/60	3/16
52100	62/66	1/4
*52100 Mod.

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