ALFUN a.s.

Cold rolled steel sheets and strips

 

Drawning steels DC01 – DC05

Steel sheets and strips from low carbon steel are made by cold rolling process. We deliver the thicknesses from 0,4 mm up to 3,0 mm.
The sheets up to 3,0 mm thickness may be delivered split longitudinally or transversally, in many dimensions.

 

Standards:

 

Technical terms of deliveries

EN 10130

Dimensional and shape deviation tolerances

EN 10131

Application: Jsou vhodné na tváření za studena a na výrobky, u kterých je dále upravovaný povrch (lakování, pokovování).

 

Mechanical properties:

Steel mark according to ENMechanical properties
Yield limit - Re max. MPaStrength limit - Rm min. / max. MPaElongation - A80 min. %
DC01 280 270 - 410 28
DC03 240 270 - 370 34
DC04 220 270 - 350 37
DC05 200 270 - 330 39

 

Micro-alloyed steels – with high strength limit for cold forming

The high-strength steel sheets and strips are produced by cold rolling process in the thicknesses from 0,4 do 3,0 mm.
The sheets up to thickness 3,0 mm may be delivered split longitudinally or transversally, in various dimensions.

 

Standards:

 

Technical terms of deliveries EN 10268
Dimensional and shape deviation tolerances EN 10131

Application: For the parts of cars that are stressed dynamically; thore are distinguished by an increased cold mouldability.

 

Mechanical properties:

Steel mark according to EN 10268Mechanical properties
Contractual Yield limit Rp0,2 (MPa) min. / max.Strength limit - Rm min./max.Elongation - A80 min. %
HC260LA 240 - 310 340 - 420 27
HC300LA 280 - 360 370 - 470 24
HC340LA 320 - 410 400 - 500 22
HC380LA 350 - 450 430 - 550 20
HC420LA 390 - 500 460 - 580 18

 

Surface quality:
A/B A = standard surface with the part of allowable surface defects B = better

 

Dimensions in mm:Sheet / trimmingCoil / strip
Thickness 0,4 - 3,0 0,4 - 3,0
Width 20 - 1 700 20 - 1 550
Length 100 - 6000 -
Coil´s inner diameter - 508 / 610
Coil´s outer diameter - max. 1 800

 



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