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

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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