Grades overview, grade description, cutting material types and recommendations for carbide grades for each material

Grades overview

1 = Grade description
2 = Standard designation
3 = Cutting material type
4 = Application range
● = Main application
○ = Extended application

Grade description

CTCP605

HC-P10 | HC-K20

Specifications:
Composition: Co 6.0%, TaC 2.0%, WC balance
Grain size: 1 µm
Hardness: HV30 1630
Layer system: CVD TiCN-Al2O3

● = Main application
○ = Extended application

Recommended use:
The first choice for high cutting speeds and feeds in steel materials for very stable machine conditions.

CTCM615

HC-M15 | HC-S15

Specifications:
Composition: Co 6.0%, TaC 2.0%, WC balance
Grain size: 1 µm
Hardness: HV30 1630
Layer system: CVD TiCN-Al2O3

● = Main application

Recommended use:
Premium high-performance grade for martensitic stainless steels and heat resistant alloys for stable machine conditions

CTCP615

HC-P15 | HC-M15 | HC-S15

Specifications:
Composition: Co 6.0%; mixed carbide 3.1%; WC balance
Grain size: fine
Hardness: HV30 1630
Layer system: CVD TiCN-Al2O3

● = Main application
○ = Extended application

Recommended use:
Wear-resistant carbide grade with main application in finishing inserts in all material classes for stable machine conditions

CTCM625

HC-M25 | HC-P25 | HC-S25

Specifications:
Composition: Co 7.0%; mixed carbide 6.5%; WC balance
Grain size: medium
Hardness: HV30 1460
Layer system: CVD TiCN-Al2O3

● = Main application
○ = Extended application

Recommended use:
Specially developed grade for general machining of stainless steels

CTCP625

HC-P25 | HC-M25 | HC-S25

Specifications:
Composition: Co 7.0%; mixed carbide 6.5%; WC balance
Grain size: medium
Hardness: HV30 1460
Layer system: CVD TiCN-Al2O3

● = Main application

Recommended use:
Excellent multi-use grade with main application in finishing inserts in all material classes with medium tensile strengths for moderate machine conditions

CTCP630

HC-P30 | HC-M30 | HC-S30

Specifications:
Composition: Co 9.0%; other < 3%; WC balance
Grain size: medium
Hardness: HV30 1400
Layer system: CVD TiCN-Al2O3

● = Main application

Recommended use:
Carbide grade with focus on roughing in specific stainless materials and heat-resistant alloys

CTCM635

HC-M35 | HC-P35 | HC-S35

Specifications:
Composition: Co 10.0%; mixed carbide 5.0%; WC balance
Grain size: medium
Hardness: HV30 1380
Layer system: CVD TiCN-Al2O3

● = Main application

Recommended use:
Tough grade for machining stainless steels under difficult conditions

CTCP635

HC-P35 | HC-M35 | HC-S35

Specifications:
Composition: Co 10.0%; mixed carbide 5.0%; WC balance
Grain size: medium
Hardness: HV30 1380
Layer system: CVD TiCN-Al2O3

● = Main application

Recommended use:
Tough multi-use grade with main application in roughing inserts in all material classes for adverse machine conditions

CTCP640

HC-P40 | HC-M40 | HC-S40

Specifications:
Composition: Co 10.5%; mixed carbide 2.0%; WC balance
Grain size: medium
Hardness: HV30 1400
Layer system: CVD TiCN-Al2O3

● = Main application

Recommended use:
Extremely tough carbide grade for roughing applications under the toughest machine conditions

H216T

HW-N15 | HW-K15

Specifications:
Composition: Co 6.0%; WC balance
Grain size: 1 µm
Hardness: HV30 1630

● = Main application
○ = Extended application

Recommended use:
The uncoated carbide grade for machining aluminium and other non-ferrous metals

Cutting material grades ISO P / ISO M / ISO S

Recommended CERATIZIT carbide grades for each material

 

  Workpiece/material Treatment type Alloy VDI 3323 Group Hardness [HB] Grade
P Unalloyed steel Annealed ≤ 0.15% C 1 125 CTCP625
CTCP635
CTCP605
Unalloyed steel Annealed 0.15%–0.45% C 2 150-250 CTCP625
CTCP635
CTCP605
Unalloyed steel Tempered ≥ 0.45% C 3 300 CTCP615
CTCP605
Low-alloy steel Annealed   6 180 CTCP625
CTCP635
CTCP605
Low-alloy steel Tempered   7 / 8 250-300 CTCP615
CTCP625
CTCP605
Low-alloy steel Tempered   9 350 CTCP615
CTCP605
High-alloy steel Annealed   10 200 CTCP625
CTCP615
High-alloy steel Tempered   11 350 CTCP615
CTCP605
Stainless steel Annealed Ferritic / martensitic 12 200 CTCP625
Stainless steel Tempered Martensitic 13 325 CTCP625
CTCM615
  Workpiece/material Treatment type Alloy VDI 3323 Group Hardness [HB] Grade
M Stainless steel Quenched Austenitic 14 180 CTCM625
CTCM635
Stainless steel Quenched Ferritic/austenitic (Duplex) 14 230-260 CTCM625
CTCM635
CTCM615
Stainless steel Age-hardened Austenitic
Precipitation-hardened 
(PH)
14 330 CTCM625
CTCM635
CTCM615
  Workpiece/material Treatment type Alloy VDI 3323 Group Hardness [HB] Grade
K Cast iron     15-20 130-260 CTCP615
CTCP605
H216T
N Non-ferrous metals     21-30 80-130 CTCP615
CTCP605
H216T
S Heat-resistant alloys     31-35 200-350 CTCP625
CTCP630
CTCP640
Titanium alloys     36 / 37 150-300 CTCP615
CTCM615
H216T