No more wear and corrosion - with our bimetallic barrels
Reiloy develops high-grade alloys for bimetallic barrels to effectively protect against wear and corrosion.
In a sophisticated process using proprietary production equipment, we manufacture warp-free barrel blanks that can be finished either by us our by our customers without further straightening.
Armour alloys for Reiloy barrels
Reiloy armour alloys are developed in our in-house materials laboratory. They are continually tested to meet extremely high requirements.
The structural photos on the left show a selection of various armour alloys.
Click on the + icon for an overview of the armour alloys.
Reiloy barrel materials
The steels used in our barrel materials have been selected to meet the requirements of injection-moulding and extruder applications.
For high-pressure barrels (such as those used in injection-moulding applications) we use our "Reiloy Standard" Cr-V special backing steel, which is produced according to Reiloy chemical and treatment specifications.
The diagram on the left indicates the maximum permissible internal pressure for Reiloy Standard barrels of various bore diameters (B) in relation to the outside diameter (D), at an operating temperature of 350 °C.
Technical data for bimetallic barrels
Armour alloys
| Fe-Basis | |||||||||||
| REILOY material |
Hardness [HRC] |
Wear resistance |
Corrosion resistance |
Thermal material expansion (25 - 400 °C) [1/MK] |
Essential alloy elements [Gew.-%] | ||||||
| RT |
300°C | Cr | Mo | V | Ni | B | C | ||||
| R112 | 65-68 | 55-57 | • • • | - | 12,8 | 1 | - | - | 4 | 2,1 | 3,6 |
| R121 | 65-69 | 58-62 | • • • | • • • | 14,2 | 10 | 6 | - | 4 | 3,8 | 2,0 |
| R130 | 65-69 | 58-62 | • • • • | • • | 14,1 | 9 | 5 | 8 | 5 | 3,5 | 3,1 |
| Ni-Basis | |||||||||||
| REILOY material |
Hardness [HRC] |
Wear resistance |
Corrosion resistance |
Thermal material expansion (25 - 400 °C) [1/MK] |
Essential alloy elements [Gew.-%] | ||||||
| RT |
300°C | Cr | Mo | Co | B | W | C | ||||
| R115 | 52-56 | 49-53 | • | • • • • • | 13,1 | 7 | 2 | 35 | 3,8 | ||
| R215 | 60-65 | 53-57 | • • • • • | • • • • | 11,5 | 4 | 1,5 | 15 | 2 | 40 | 1,9 |
Backing materials
| Material | Material Nr. |
Yield strength Rp0,2 (300°) [MPa] |
Tensile strength Rm (RT) [MPa] |
Elongation to fraction A(I=5d) (300°) [%] |
| REILOY-Standard | - | 580 | 980 | 15 |
| C60 | 1.0601 | 360 | 800 | 12 |
| Inconel 625 | 2.4856 | 300 | 630 | 40 |
Delivery parameters
| Delivery parameters | Delivery dimensions | Delivery form |
|||
| Layer thickness: Bore: Peak-to-valley height: |
ca. 1,5 mm honed to tolerance H7 min. 0,15 µm - max. 0,8 µm (Ausname R215 min. 0,5 µm - max. 0,8 µm) |
Inside: Outside: Length: |
Ø 15 - 400 mm Ø max. 650 mm max. 9000 mm |
Barrel blank: Semi-finished Barrel: Finished Barrel: |
Bore finished-honed, outer diameter and length with manufacturing overdimensions Bore finished-honed, outer diameter and length turned to dimension (eventually with feed opening) with shrink-fit sleeve at the outflow end if necessary Completely finished according to the customer’s drawing |