Metal cutting circular saw blades

Metal cutting circular saw blades

Lennartz HSS metal circular saw blades are supplied with different tooth forms and coatings - depending on the respective application - and are available in all common sizes and tooth forms.

Standard versions

Lennartz HSS - metal cutting circular saw blades are supplied in the following steel grades

HSS – S 6-5-2 – Material – No. 1.3343

HSS-E – S 6-5-2-5 – Material – No. 1.3243

Standard:
Steel grade S 6-5-2 (1.3343)
Hardness 63 - 65 HRC
Tooth forms BW, HZ
Tooth angle 18°/8°

Standard dimension

Diameter [mm]	Cutting width [mm]	Number of teeth and tooth form for tooth pitch T [mm]
		T3	T4	T5	T6	T7	T8	T9	T10	T11	T12	T14	T16	T18
		BW		HZ
175	1.2 1.6 2.0	180	140	110	90		64
200	1.2 1.6 1.8 2.0	200	160	128	100		72
210	2.0	210	160	130	110		84
225	1.2 1.6 2.0	220	180	150	120		90	80
250	1.6 2.0 2.5 3.0	240	200	160	128	110	100		80		64
275	1.6 2.0 2.5 3.0	280	220	180	144	120	110	96	84	78	72
300	1.6 2.0 2.5 3.0	320	240	200	160	140	120	110	100	90	80
315	2.0 2.5 3.0	320	250	200	160	140	120	110	100	90	80	72
325	2.0 2.5 3.0	320	250	200	170	150	130	110	100		90
350	2.0 2.5 3.0 3.5	350	280	220	180	160	140	120	110		90	80
370	2.5 3.0 3.5		300	220	190	160	140	120	110	100	90	80	70
400	2.5 3.0 3.5 4.0		320	250	200	180	160	140	128		100	90	80	70
425	3.0 3.5 4.0		350	260	220	180	160	140	130	120	110	100	80	70
450	3.0 3.5 4.0			280	240		180		140		120	100	90	80
500	3.0 3.5 4.0 5.0			310	260		200		160		130	110	100	90
525	3.5 4.0			330	270		210		164		140	120	104	90
550	3.0 4.0 5.0			340	280		220		170		140	120	110	100
570	4.0 5.0			360	300		220		180		150	130	110	100
600	4.0 5.0			380	320		240		190		160	130	120	100
630	4.0 5.0			380	320		240		190		160	130	120	100

Main bore hole [mm]	Pinholes Pcs./Ø/Pitch circle Ø [mm]
Ø 32	2/8,5/45 2/11/63 2/8,5/45 2/9/50 2/12/64 2/8,5/45 4/9/50 2/12/64
Ø 40	2/8,5/55 4/12/64 2/15/80 4/12/64 2/15/80 2/15/100 4/12/64
Ø 50	4/15/80 4/18/100 4/15/85
Ø 80	4/23/120

In addition to the standard program, special dimensions and versions are also supplied for all types of saw machines.

Geometries for different applications

A: Standard tooth form for fine-toothed saw blades with a pitch of T = 0.8 - 3.0 mm

AW: Like tooth form A but with side chamfer

HZ (C): forward and trailing cut tooth, for the cutting of solid material, pipes and profiles with heavier wall thicknesses (>3 mm)

B: Tooth form for narrow cut saw blades with a thickness <1.3mm

BW: Tooth form for tubes and profiles with thin wall thicknesses

BS: Standard tooth form for tubes and profiles

Cutting value recommendations

Selection of the proper cutting parameters depends on the material to be cut, the material cross section, the cooling and lubrication, the tooth geometry to be used, the condition of the sawing machine, as well as the surface treatment and coating of the saw blade. The values listed below are to be used as practical guidance aids.

Solid material

Material	Cutting speed [m/min]	Chip thickness [mm/tooth]	Tooth pitch T with a material cross section d [mm]
		10-20	20-40	40-60	60-90	90-110	110-130	130-150
up to 500 N/mm²	30 - 50	0.03 - 0.06	T5	T8	T10	T12	T14	T16	T18
up to 800 N/mm²	20 - 40	0.03 - 0.04	T5	T6	T10	T12	T14	T16	T18
up to 1200 N/mm²	15 - 25	0.02 - 0.03	T5	T6	T8	T10	T12	T14	T14
Stainless steel	10 - 30	0.01 - 0.03	T5	T6	T8	T10	T12	T14	T14
Cast iron	15 - 40	0.04 - 0.05	T5	T6	T8	T11	T14	T16	T16
Aluminium	80 - 1500	0.04 - 0.09	T6	T8	T12	T16	T18	T20	T20
Copper	200 - 300	0.04 - 0.06	T6	T8	T10	T13	T15	T17	T19
Bronze	90 - 300	0.04 - 0.06	T6	T8	T10	T13	T15	T17	T19
Brass	350 - 600	0.04 - 0.08	T6	T10	T12	T14	T17	T19	T20

Tubes and profiles

Material	Cutting speed [m/min]	Chip thickness [mm/tooth]	Tooth pitch T with a material cross section d [mm]
		<1.0	1.0 - 1.5	1.5 - 2.0	2.0 - 3.0	3.0 - 4.0	4.0 - 5.0	5.0 - 6.0	6.0 - 8.0
up to 500 N/mm²	40 - 80	0.03 - 0.06	T3	T4	T5	T5	T6	T8	T9	T10
up to 800 N/mm²	30 - 60	0.03 - 0.04	T3	T4	T4	T5	T6	T8	T9	T10
up to 1200 N/mm²	20 - 40	0.02 - 0.03	T3	T3	T4	T5	T5	T7	T8	T9
Stainless steel	5 - 40	0.01 - 0.03	T3	T3	T4	T5	T6	T8	T9	T10
Aluminium	80 - 1500	0.04 - 0.09	T4	T5	T6	T7	T8	T10	T12	T12
Copper	200 - 500	0.04 - 0.05	T4	T5	T6	T7	T8	T10	T12	T12
Bronze	90 - 350	0.04 - 0.06	T4	T5	T6	T7	T8	T10	T12	T12
Brass	350 - 900	0.04 - 0.08	T4	T5	T6	T7	T8	T10	T12	T12

Surface treatment

The following versions can be supplied:

blank
steam treated
coated

TiN, TiAlN, TiCN

Further versions upon request.