KD FOUNDRY Králův Dvůr, s.r.o.

Heinemannova 2695/6, Dejvice, 160 00, Praha 6, Tel.: +420 311 662 417, e-mail: simsa@kdfoundry.cz


CZ | EN
Office:
Heinemannova 2695/6
Dejvice, 160 00, Praha 6

tel.: +420 311 662 558
mobil: +420 724 182 221
e-mail: simsa@kdfoundry.cz

Plant:
CZ - 267 01 Králův Dvůr
TOPlist

Roll specification

Identification Roll type Main use Chemical composition, % from/to Hardness of the working layer surface from/to Maximum hardness of the necks (HB) Thickness of the hardened layer from/to (mm) Note
C Mn Si P S Ni Cr Mo
A1 Hardened rolls, plain, smooth For strips 3,20 3,60 0,30 0,70 0,40 0,60 0,30 0,60 max 0,18 - - - min 59HSh (410 HB) 240 8 18  
A22) Hardened rolls, plain, smooth For light strips 2,70 3,30 0,20 0,70 0,40 0,60 max 0,60 max 0,12 - - - min 61HSh (430 HB) 370 15 25 For body length 1450 to 1650 the hardness is min. 59 HSh and thickness of the hardened layer 8 to 20mm.
A3 Hardened rolls, plain, smooth For thick strips 2,80 3,20 0,30 0,70 0,40 0,70 max 0,50 max 0,08 - - - min 56-64HSh (390-450 HB) 240 8 20  
A4 Hardened rolls, plain, grooved For light sections and wires 3,00 3,60 0,20 0,90 0,40 0,80 max 0,60 max 0,15 - - - min 59-68HSh (410-485 HB) 260 10 25  
A5 Hardened rolls, plain, grooved For light and medium sections with deep grooves 2,80 3,50 0,20 0,50 0,40 0,80 max 0,60 max 0,14 - - - min 59-68HSh (410-485 HB) 280 20 40  
A62) Hardened rolls, alloy Mo, smooth For light sheet metal 2,80 3,50 0,20 0,50 0,40 0,80 max 0,60 max 0,12 - - 0,301) 0,60 min 61 HSh (430 HB) 270 15 25 For body length 1450 to 1650 the hardness is min. 59 HSh and thickness of the hardened layer 8 to 20mm.
A7 Hardened rolls, alloy Mo, smooth For metal plates 2,80 3,30 0,20 0,90 0,40 0,80 max 0,50 max 0,08 - - 0,301) 0,50 56-64 HSh (390-450 HB) 260 8 20  
A8 Hardened rolls, alloy Mo, smooth For wide strips on pontoon roughers and leader mills 3,00 3,40 0,20 0,60 0,35 0,55 0,35 0,50 max 0,10 - - 0,301) 0,40 min 58 HSh (405 HB) 260 15 40  
A102) Hardened rolls, alloy Ni Cr Mo, smooth For light sheet metals 2,80 3,40 0,20 0,80 0,40 0,80 max 0,60 max 0,12 0,301) 0,60 0,15 0,30 1) 0,301) 0,60 min 62HSh (440 HB) 270 15 25  
A11 Hardened rolls, alloy Ni Cr Mo, smooth For strips 3,00 3,60 0,40 0,90 0,40 0,80 max 0,60 max 0,12 1,201) 1,50 0,30 0,60 1) 0,251) 0,35 min 67HSh (480 HB) 320 10 25  
B 1 Slightly hardened rolls, plain For medium and heavy sections 2,80 3,20 0,90 1,20 1,00 1,30 max 0,45 max 0,12 - - - 220 - 300 HB 240 -  
B 2 Slightly hardened rolls, alloy Ni Cr For heavy sections 2,70 3,20 0,90 1,20 1,00 1,30 max 0,45 max 0,12 1,00* 1,40 0,30 0,50* - 240 - 300 HB 260 -  
B 3 Slightly hardened rolls, alloy Ni Cr For medium- heavy sections 2,70 3,00 0,50 0,90 0,90 1,30 max 0,30 max 0,10 1,30* 1,50 0,90 1,20* - 300 - 450 HB 300 -  
B 4 Slightly hardened rolls, alloy Ni Cr For light and medium sections 3,00 3,50 0,50 0,90 0,40 0,90 max 0,60 max 0,12 1,20* 1,50 0,30 0,60* - min 61 HSh (430 HB) 340 -  
B 5 Slightly hardened rolls made of plain nodular cast iron For light, medium and heavy sections 3,10 3,60 0,40 1,00 1,20 2,20 max 0,15* max 0,30 max 0,03 - - - 340 - 450 HB 260 -  
B 6 Slightly hardened rolls made of plain nodular cast iron For pipes 3,00* 3,40* 0,60* 1,20* 1,30* 1,80* max 0,15* max 0,30 max 0,03* - - - 240 - 320 HB 280 -  
B 7 Slightly hardened rolls made of nodular cast iron, alloy Ni Cr For light and medium sections 3,00 3,50 0,50 1,00 1,20 2,40 max 0,15* max 0,30 max 0,03 1,00* 1,50 0,30 0,50* - 280 - 430 HB 300 -  
B 8 Slightly hardened rolls made of nodular cast iron. alloy Ni Cr For pipes 2,60 3,10 0,60 1,20 1,20 2,00 max 0,15* max 0,03 0,60* 1,40 0,20 0,60* - 260 - 380 HB 300 -  
B 9 Slightly hardened rolls made of nodular cast iron, alloy Ni Cr For medium and heavy sections and for pipes 2,50 2,70 0,40 0,80 1,20 1,60 max 0,10* max 0,015 0,70* 1,00 0,30 0,60* - 320 - 390 HB 300 - Loss of hardness of the working layer 40 HB/100 mm
B 10 Slightly hardened rolls made of nodular cast iron, alloy Ni Cr, Mo, smooth For light and medium sections 3,20 3,60 0,40 0,70 1,20 1,80 max 0,10* max 0,015 1,80* 2,40 0,30* 0,70 0,20* 0,50 420 - 500 HB 360 -  
C 2 Medium-hard rolls, alloy Mo, smooth For metal plates 2,40 ,70 0,60 0,90 0,70 1,20 max 0,30 max 0,07 - - 0,30* 0,50 200 - 220 HB 220 -  
C 3 Medium-hard rolls, alloy Ni, Cr, Mo with pre-cast s grooves For heavy sections 2,60 3,10 0,80 1,50 0,70 1,20 max 0,30 max 0,12 1,00* 1,40 0,20 0,80* 0,30* 0,50 220 - 300 HB 260 - 0.50 - 1.00 % Cu
C 4 Medium-hard rolls made of plain nodular cast iron, smooth or with pre-cast s grooves For light and medium sections 3,00 3,60 0,40 1,20 1,30 1,80 max 0,15* max 0,30 max 0,03 - - - 280 - 380 HB 280 -  
C 5 Medium-hard rolls made of plain nodular cast iron, with pre-cast s grooves For thick and heavy sections 3,00 3,60 0,40 1,20 1,30 1,80 max 0,15* max 0,30 max 0,03 - max 0,30 - 200 - 300 HB 270 -  
C 6 Medium-hard rolls made of nodular cast iron, alloy Ni, Cr, Mo with pre-cast s grooves For thick and heavy sections 3,00 3,60 0,70 1,20 1,00 1,70 max 0,15* max 0,02 1,00 1,40 0,30 0,50 0,30 0,40 230 - 280 HB 260 -  
C 7 Medium-hard rolls made of nodular cast iron, alloy Ni, Cr, Mo, smooth For thick and heavy sections 3,00 3,60 0,70 1,20 1,50 2,20 max 0,15* max 0,30 max 0,02 1,00 1,40 0,30 0,50 0,30 0,40 380 - 457 HB 260 -  
C 8 Medium-hard rolls made of nodular cast iron, alloy Ni, Cr, Mo with pre-cast s grooves For thick and heavy sections 2,60 3,10 0,60 1,20 1,20 2,00 max 0,15* max 0,03 0,60 1,40 0,20 0,60 - 230 - 330 HB 270 - Heat-treated
C 9 Medium-hard rolls made of nodular cast iron, alloy Ni Mo (with bainitic structure) with pre-cast s grooves For thick and heavy sections in finishers 2,70 3,00 0,60 1,00 1,20 1,80 max 0,15* max 0,03 3,40 4,00 max 0,20 0,70 1,00 260 - 320 HB 300 - Heat-treated
D 1 Rolls with indefinite hardened layer, alloy Ni Cr Mo, smooth and grooved For light and medium sections and strip 2,90 3,30 0,40 0,90 0,40 0,80 max 0,45 max 0,12 2,80* 3,10 0,40 0,80* 0,25* 0,40 min 70 HSh (500 HB) 340 -  
D 2 Rolls with indefinite hardened layer, alloy Ni Cr Mo, smooth For strips 3,00 3,50 0,40 0,90 0,60 1,20 max 0,45 max 0,12 2,80 3,50 0,40 1,20 0,40 0,60 min 75 HSh (540 HB) 350 -  
D 3 Rolls with indefinite hardened layer, alloy Ni Cr Mo, smooth For wide strips in leader mills 3,10 3,40 0,40 0,80 0,50 0,80 max 0,15* max 0,10 3,00* 3,50 0,80 1,00* 0,25* 0,35 62 - 75 HSh (440-540 HB) 320 -  
D 4 Rolls with indefinite hardened layer, alloy Ni Cr Mo, smooth For wide strips in finishers 3,20 3,50 0,80 1,20 1,00 1,40 max 0,15* max 0,10 4,20 4,50 1,30 1,70 0,30 0,40 72 - 85 HSh (520-616 HB) 320 -  
D 5 Rolls with indefinite hardened layer, alloy Ni Cr Mo, smooth For wide strips in finishers 2,60 2,90 0,40 0,80 0,40 0,50 max 0,45 max 0,10 3,80 4,20 0,65 0,75 0,30 0,40 74 - 85 HSh (530-616 HB) 320 -  
D 6 Rolls with indefinite hardened layer, alloy Ni Cr Mo, smooth For light sections 3,10 3,60 0,30 0,60 0,70 1,10 max 0,20 max 0,10 2,00 2,60 0,80 1,20 0,20 0,50 75 - 85 HSh (540-616 HB) 380 -  
D 7 Rolls with indefinite hardened layer made of bainitic nodular cast iron, alloy Ni Mo For plates 3,20 3,50 0,30 0,60 0,60 0,80 max 0,10* max 0,02 4,00* 4,40 max 0,30 0,90* 1,15 62 - 75 HSh (440-540 HB) 360 -  
E 1 Rolls made of cast iron, highly alloy Cr, grooved For light, medium and heavy sections in finishers 2,60 3,00* 0,50 0,80 0,30 0,50 max 0,10 max 0,05 0,10 0,30 13,00* 15,00 0,40* 0,60 61 - 68 HSh (430-485 HB) 360 - Heat-treatment option

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