Surface Finishing

Basic material surfaces

2B (IIIc)

2B (IIIc)

- cold-rolled metal with 2B (IIIc) surface in accordance with EN 10088-2
- smooth, matte surface
- surface irregularities that appear during the production process are tolerated
- metal roughness (before tank production): 0.1 μm < Ra < 0.5 μm
- product roughness is not inspected

2R (IIId, BA)

2R (IIId, BA)

- cold-rolled metal with 2R (IIId) surface in accordance with EN10088-2, bright annealing
- smooth, bright surface
- surface irregularities that appear during the production process are tolerated
- metal roughness (before tank production): 0,03μm < Ra < 0,1 μm
- product roughness is not inspected

1D (IIa)

- hot-rolled metal with 1D (IIa) surface in accordance with EN10088-2
- surface irregularities that appear during the production process are tolerated
- metal roughness (before tank production): 2μm < Ra < 6 μm
- product roughness is not inspected

 

Additional surface finishing

Circle polished - flowered finish

krozkana

 

Sandblasted

peskana

 

TiN-coating, copper color

TiN coated

 

Scotch brite

scotch brite

 

Ground surface K80

brusena K80 

 

Ground surface K120 

povrsina K120

 

Mechanically polished surface

mehansko polirana

 

Polished surface No.8

mirror polished No.8

 

Surface properties

CIRCLE POLISHED - FLOWERED FINISH 
(K)
  • metal with 2B or 2R surface
  • basic material surface irregularities and surface irregularities that appear during the production process are tolerated
  • final product roughness is not inspected

PASSIVATED

  • chemically treated
  • without mechanical treatment
  • final product roughness is not inspected
SCOTCH BRITE
(SB)
  • surface mechanically brushed with SCOTCH BRITE material 
  • metal with 2B or 2R surface
  • brushing leads to a uniform and aesthetic surface quality
  • final product roughness is not inspected
SANDBLASTED
CrNi beads
(S)
  • surface sandblasted with CrNi pearls in sandblasting chamber
  • metal with 2B, 2R or 1D surface
  • final product roughness is not defined
TiN-coated  
GROUND
(BC)
(BK)
  • surface mechanically ground
  • grinding leads to a uniform and aesthetic surface quality
  • final product roughness is not defined
GROUND
B80 / B120 / B180 / B220 / B320
  • GROUND B80: surface mechanically ground to final roughness Ra < 1.6 μmfinal grinding with abrasive band grit size K80
  • GROUND B120: surface mechanically ground to final roughness Ra < 1.2 μm, final grinding with abrasive band grit size K120
  • GROUND B180: surface mechanically ground to final roughness Ra < 0.8 μm, final grinding with abrasive band grit size K180
  • GROUND B220: surface mechanically ground to final roughness Ra < 0.6 μm, final grinding with abrasive band grit size K220
  • GROUND B320: surface mechanically ground to final roughness Ra < 0.4 μm, final grinding with abrasive band grit size K320
MECHANICALLY POLISHED
(PC)
(PK)
  • mechanically polished to mirror finish
  • polishing leads to a uniform and aesthetic surface quality
  • final product roughness is not defined
MECHANICALLY POLISHED
P08 / P06 / P04
  • MECHANICALLY POLISHED P08: surface mechanically polished to mirror finish, final roughness Ra < 0.8 μm
  • MECHANICALLY POLISHED P06: surface mechanically polished to mirror finish, final roughness Ra < 0.6 μm
  • MECHANICALLY POLISHED P04: surface mechanically polished to mirror finish, final roughness Ra < 0.4 μm
ELECTROPOLISHED
E08 /E06 / E04
  • ELECTROPOLISHED E08: final grinding with abrasive band grit size K180, electropolished, final roughness Ra < 0.8 μm
  • ELECTROPOLISHED E06: final grinding with abrasive band grit size K220, electropolished, final roughness Ra < 0.6 μm
  • ELECTROPOLISHED E04: final grinding with abrasive band grit size K320, electropolished, final roughness Ra < 0.4 μm