NACHI-FUJIKOSHI CORP.

1.Dimension and tolerance of round bars

Standard length: 2000
(Maximum length of 4000mm and small-sized cutting materials are also available.)

Category	Diameter	Tolerance	Surface defect
Unground(UG)	Ø1.0 to 13.3	+0.08 -0.020	0.15 or less
Ground	Ø1.0 to 13.0	+0 -0.022	Decarb free
Precision Drawn	Ø0.2 to 3.6	+0 -0.020

[mm size table] 

2.Dimension and tolerance of flat bars

Standard length: 2000
(Maximum length of 4000mm and small-sized cutting materials are also acceptable.)

Category	Thickness	Thickness Tolerance	Nominal width	Width [mm] Tolerance	Surface defect
Unground	1.0 to 2.5	+0.05 -0	4.0 to 12.0	+0.05 -0	0.05 or less

3.Various shapes

Various shaped materials other than round and flat steel can be manufactured.

4.Straightness

Length	Straightness
20 or greater and 50 or less	0.020 or less
Greater than 20 and 75 or less	0.045 or less
Greater than 75 and 100 or less	0.080 or less
Greater than 100 and 175 or less	0.150 or less
Greater than 175 and L or less	(L/200)2 x 0.02 or less

5.Hardness: Selection following each steel type and application

(Example) SKH9 for cutting tool	: 65-67HRC
for parts mold	: 58-65HRC