TungThread

Applications & Features

Inserts & Grades

Toolholders

Practical examples

Example #1

General Engineering

Part:	Shaft Parts
Material:	42CrMo4/SCM440
Toolholder:	STVOL2525M4 (Vertical style)
Insert:	TNMC43NT6PSTUBPT (3 croner)
Grade:	AH725
Cutting conditions:	Thread shape = Stub ACME (3 ¾ (95.25mm)) Vc = 70 m/min (230 sfm) TPI = 6 TPI (4.23mm) Number of passes = 30 Application: External Threading Coolant: Wet Machine: NC Lathe

Standard cutting conditions

TungThread

ISO	Workpiece Workpiece materials	Hardness	Cutting speed Vc (m/min)
			AH8015	T05HP	T05TP	AH725	T313V	NS9530	TH10	BX330
	Steel / Alloy steel S45C, SCM440, etc. C45, 42CrMoS4, etc.	< 200 HB	80 – 180	100 – 200	100 – 200	80 – 180	100 – 200	150 – 200	–	–
		> 200 HB	60 – 160	100 – 150	100 – 150	60 -160	100 – 150	100 – 170	–	–
	Stainless steel SUS304, etc. X5CrNi18-9, etc.	–	50 – 130	70 – 130	70 – 130	50 – 130	70 – 130	–	–	–
	Cast iron FC250, FC300, etc. 250, 300, etc.	–	60 – 150	70 – 150	70 – 150	50 – 100	70 – 150	–	70 – 90	–
	Aluminium	–				–	–	–	100 – 500	–
	Heat-resistance alloys	–	20 – 80			–	–	–	10 – 40	–
	High hardened steel	50 – 60 HRC				–	–	–	10 – 30	50 – 200

TungT-Clamp

ISO	Workpiece Workpiece materials	Hardness	Grade	Application	Cutting speed Vc (m/min)	Pitch (mm)	Threads per inch (TPI)
	Steel / Alloy steel S45C, SCM440, etc. C45, 42CrMoS4, etc.	< 200 HB	AH725	Threading	80 – 180	Internal 2.11 – 5.08 External 1.27 – 4.23	Internal 5 – 12 External 6- 20
		> 200 HB	AH725	Threading	60 -160	Internal 2.11 – 5.08 External 1.27 – 4.23	Internal 5 – 12 External 6- 20
	Stainless steel SUS304, etc. X5CrNi18-9, etc.	–	AH725	Threading	50 – 130	Internal 2.11 – 5.08 External 1.27 – 4.23	Internal 5 – 12 External 6- 20

TetraMini-Cut

ISO	Workpiece Workpiece materials	Hardness	Priority	Grade	Cutting speed Vc (m/min)	Pitch (mm)	Threads per inch (TPI)
	Steel / Alloy steel S45C, SCM440, etc. C45, 42CrMoS4, etc.	< 200 HB	First choice	SH725	60 – 150	0.4 – 2.0	64 – 12
			Fracture resistance	AH725	60 – 150	0.8 – 3.0	32 – 8
		> 200 HB	First choice	SH725	60 – 150	0.4 – 2.0	64 – 12
			Fracture resistance	AH725	60 – 150	0.8 – 3.0	32 – 8
	Stainless steel SUS304, etc. X5CrNi18-9, etc.	–	First choice	SH725	50 – 80	0.4 – 2.0	64 – 12
		–	Fracture resistance	AH725	50 – 80	0.8 – 3.0	32 – 8
	Cast iron FC250, FC300, etc. 250, 300, etc.	–	First choice	AH725	50 – 100	0.8 – 3.0	32 – 8
		–	Sharpness	SH725	50 – 100	0.4 – 2.0	64 – 12
	Superalloys Ti-6AI-4V, Inconel718, etc.	–	First choice	SH725	30 – 100	0.4 – 2.0	64 – 12
		–	Fracture resistance	AH725	30 – 100	0.8 – 3.0	32 – 8

DuoJust-Cut

ISO	Workpiece material	Hardness	Grade	Cutting speed Vc (m/min)	Pitch (mm)	Threads per inch (TPI)
	Steel / Alloy steel S45C, SCM440, etc. C45, 42CrMoS4, etc.	< 200HB	SH725	50 – 200	0.2 – 1.5	127 – 16
		> 200HB	SH725	50 – 200	0.2 – 1.5	127 – 16
	Stainless steel SUS304, etc. X5CrNi18-9, etc.	–	SH725	50 – 200	0.2 – 1.5	127 – 16
	Aluminium alloys A5056, A6061, etc.	–	SH725	150 – 200	0.2 – 1.5	127 – 16
	Copper alloy C2600, C280C, etc.	–	SH725	100 – 200	0.2 – 1.5	127 – 16
	Superalloys Ti-6AI-4V, Inconel718, etc.	–	SH725	30 – 80	0.2 – 1.5	127 – 16

TinyMini-Turn Internal threading

ISO	Workpiece material	Hardness	Grade	Cutting speed Vc (m/min)	Number of passes
					Pitch (mm)
					0.5	0.75	1	1.25	1.5
	Steel / Alloy steel S45C, SCM440, etc. C45, 42CrMoS4, etc.	< 200HB	SH725	40 – 140	6 – 8	8 – 10	10 – 12	12 – 15	15 – 18
		> 200HB	SH725	40 – 140	6 – 8	8 – 10	10 – 12	12 – 15	15 – 18
	Stainless steel SUS304, etc. X5CrNi18-9, etc.	–	SH725	40 – 140	8	10	12	15	18
	Cast iron FC250, FC300, etc. 250, 300, etc.	–	SH725	30 – 100	7	9	12	14	17
	Aluminium alloys, Copper alloy Si < 12%	–	SH725	90 – 200	6	8	10	12	15