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EXEM Steel
Improved machinability steel
EXEM is a range of Štore Steel grades developed for manufacturers of machined components. Each grade fulfils the requirements of the corresponding EN standard and provides enhanced and consistent machinability, resulting in shorter machining time and lower cutting-tool consumption.
Why machinability matters?
Steel price is only one part of the cost of a machined component. Machine time, cutting-tool consumption and tool changes also have a direct impact. Enhanced machinability reduces the resources required for each component and increases the output achievable from existing machining equipment.
EXEM steel benefits
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Higher cutting speed
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Lower cutting-tool consumption
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Lower machining cost
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Lower component production cost
How its made?
Standard EN grade as the basis
Each EXEM steel corresponds to a defined EN steel grade.
Proprietary steelmaking process
The production process is engineered to modify the steel’s machinability properties while maintaining the requirements of the corresponding EN grade.
Controlled metallurgical characteristics
Chemical composition, inclusions and microstructure are controlled to support enhanced and consistent machining performance.
Modified standard grade as the result
he result is an EN-compliant steel grade with enhanced and consistent machinability.
Available EXEM Steel Grades
Case-hardening EXEM grades
| EN Designation | W.Nr. | EN Production standard | DIN | Other |
|---|---|---|---|---|
| C10 EXEM | 1.0301 | EN 10277-2 | C10 EXEM | AISI/SAE 1011 |
| C15 EXEM | 1.0401 | EN 10277-2 | C15 EXEM | - |
| C15R EXEM | 1.1140 | EN 10084 | Cm15 EXEM | |
| 16MnCrS5 EXEM | 1.7139 | EN 10084 | 16MnCrS5 EXEM | - |
| 16NiCrS4 EXEM | 1.5715 | EN 10084 | - | SAE 3115 |
| 17NiCrMoS6-4 EXEM | 1.6569 | EN 10084 | - | UNI 7846 |
| 18CrNiMo7-6 EXEM | 1.6587 | EN 10084 | 17CrNiMo6 EXEM | - |
| 20MnCr5 EXEM | 1.7147 | EN 10084 | 20MnCr5 EXEM | - |
| 20MnCrS5 EXEM | 1.7149 | EN 10084 | - | - |
| 20NiCrMo2-2 EXEM | 1.6523 | EN 10084 | 21NiCrMo2 EXEM | - |
| 20NiCrMoS2-2 EXEM | 1.6526 | EN 10084 | 20NiCrMoS2-2 EXEM | - |
Forging EXEM grades
| EN Designation | W.Nr. | EN Production standard | DIN | Other |
|---|---|---|---|---|
| 20MnV6 EXEM | 1.5217 | EN 10267 | - | - |
| 30MnB4+Ti EXEM | 1.5526 mod. | EN 10263 | - | - |
| 30MnVS6 EXEM | 1.1302 | EN 10267 | - | - |
| 33MnCrB5 EXEM | 1.7185 | EN 10083-3 | ISO 683-2 | - |
| 38MnVS6 EXEM | 1.1303 | EN 10267 | - | - |
Quenching & tempering EXEM grades
| EN Designation | W.Nr. | EN Production standard | DIN | Other |
|---|---|---|---|---|
| C22 EXEM | 1.0402 | EN 10084 | C22 EXEM | AISI/SAE 1020 EXEM |
| C22R EXEM | 1.1149 | EN 10083-2 | Cm22 EXEM | |
| C35 EXEM | 1.0501 | EN 10083-2 | C35 EXEM | AISI/SAE 1035 |
| C35R EXEM | 1.1180 | EN 10083-2 | Cm35 EXEM | AISI/SAE 1035 |
| C40R EXEM | 1.1189 | EN 10083-2 | Cm40 EXEM | AISI/SAE 1040 EXEM |
| C45 EXEM | 1.0503 | EN 10083-2 | C45 EXEM | AISI/SAE 1042 EXEM |
| C45R EXEM | 1.1201 | EN 10083-2 | Cm45 EXEM | AISI/SAE 1045 EXEM |
| C50 EXEM | 1.1206 | EN 10083-2 | C50 EXEM | AISI/SAE 1049 EXEM |
| C60 EXEM | 1.1223 | EN 10083-2 | C60 EXEM | AISI/SAE 1060 EXEM |
| 25CrMo4 EXEM | 1.7218 | EN 10083-3 | 25CrMo4 EXEM | AISI/SAE 4130 |
| 25CrMoS4 EXEM | 1.7213 | EN 10083-3 | 25CrMoS4 EXEM | - |
| 30CrNiMo8 EXEM | 1.6580 | EN 10083-3 | 30CrNiMo8 EXEM | - |
| 39NiCrMoS3 EXEM | 1.6510 | EN 10083-3 | 39NiCrMoS3 EXEM | - |
| 41Cr4 EXEM | 1.7035 | EN 10083-3 | 41Cr4 EXEM | |
| 41CrS4 EXEM | 1.7039 | EN 10083-3 | 41CrS4 EXEM | - |
| 42CrMo4 EXEM | 1.7225 | EN 10083-3 | 42CrMo4 EXEM | AISI/SAE 4140 |
| 42CrMoS4 EXEM | 1.7227 | EN 10083-3 | 42CrMoS4 EXEM | AISI/SAE 4140 |
EXEM Spring and Structural Steel grades
| EN Designation | W.Nr. | EN Production standard | DIN | Other |
|---|---|---|---|---|
| 51CrV4 EXEM | 1.8159 | EN 10089 | 51CrV4 EXEM | - |
| S235JR EXEM | 1.0038 | EN 10025-2 | St-37-2 EXEM | Gr. 36 EXEM |
| S355J2 EXEM | 1.0570 | EN 10025-2 | St 52-3N EXEM | A656 |
Find your regional contact
Darko Bojović
Area sales manager (ex-YU, SLO, Balkans, CZ, SK, PL, Baltics)
darko.bojovic@store-steel.si
Contact our head of sales
