The steel grades

Our latest addition TP3501 are completing the grade order for steel turning where TP2501, TP1501 and TP0501 Duratomic grades already have a solid track record of improving performance and productivity in steel turning.

From the first developed Duratomic technology grade chain in 2007-2009, we have maintained the characteristics of each grade, while applying the vast knowledge we have gained on Duratomic technology and how it affects properties.


Application area chart

TP3501: SECURED PRODUCTIVITY

The Duratomic technology grade addition TP3501 is intended for most toughness demanding applications where the characteristic performance enhanced edge toughness is required. TP3501 is the first choice when secured productivity is the priority over maximized cutting data, especially in steel and in workpiece mixes with stainless steel.

TP2501: VERSATILE PRODUCTIVITY

Where versatility is needed and working conditions may not be perfect, TP2501 is the first choice for maximising manufacturing output under most varying productivity, cutting data and workpiece material requirements. An estimated 25% of steel turning applications feature working conditions that demand TP2501’s grade design and properties.

TP1501: BALANCED PRODUCTIVITY

TP1501 provides the first choice for high performance with well-balanced properties for different applications requiring high wear resistance and elevated cutting speeds. An estimated 20% of steel turning applications feature working conditions that demand TP1501’s design properties, and it is generally most applicable to workpieces made from softer, low-alloy steels.

TP0501: HIGH-SPEED PRODUCTIVITY

The first choice for achieving the highest possible wear resistance and/or cutting speeds, TP0501 requires stable conditions to provide high performance. Ideal applications have demands in dimensional stability, even under high thermal loads. TP0501 will provide exceptional benefits when applied to very abrasive steels.

APPLICATION AREA

The following chart illustrates the indicative positioning and application area for using TP3501, TP2501, TP1501 and TP0501 in steel workpieces.

Application area chart

The grade chain provides a very versatile and comprehensive range to cover the whole steel turning area. TP2501 is the most versatile option and TP3501 the most secure choice. TP1501 provides competent performance and balanced productivity for applications in low-alloy steels or using lower speeds. TP0501 o ers a high-heat pro le in general steel machining, particularly in high alloy steels.


CASE STUDY


DRIVER GEAR PART SEMI-FINISHING

Part Driver gear
Work piece material SCM415
SMG SMG P3
Cutting mode Internal interrupted cut
Cutting mode Surface finnish from flank wear
Coolant Emulsion

Grade TP2501 Competitor insert
Insert WNMG060404-M3 WNMG060404-...
Vc (m/min) 150 120
f (mm/rev) 0.25 0.25
ap (mm) 1.5 1.5
Tool life 1200-1500 parts 200 - 500 parts

TP chart

COMMENTS

The application has demanding intermittent parts that need both secure edge behavior and deformation resistance.