Ymvit 01 (DC01EK)
Specification details for Ymvit 01

EN-Engineering-Product-Cold-rolled-Ymvit enameling-All Grades OverviewTSN

Overview

Relationship with standards

Steel for enamelling complies with the following standards:

Tata Steel

European standard

USA

Ymvit Grade

EN 10209

ASTM A424

Ground Coat Enamelling (if necessary followed by cover coat)

Ymvit 01

DC01EK

-

Ymvit 04

DC04EK

-

Ymvit 04 plus

DC04EK (bath tubs)

-

Two Coat/One Fire and Pore Free Enamelling

Ymvit Ultra 03

DC03ED

type I CS

Ymvit Ultra 04

DC04ED

type I DS

Ymvit Extra 06

DC06ED

type III IF

Direct White Enamelling

Ymvit Ultra 03

DC03ED

type I CS

Ymvit Ultra 04

DC04ED

type I DS

Ymvit Extra 06

DC06ED

type III IF

 

EN-EngineeringAutomotive-Product-Cold-rolled-All Grades Surface aspectsTSE

Surface aspects

Surface quality

 

Surface quality A

Defects that do not influence the formability or the application of surface coatings are permitted. They are defects such as pores, minor scratches, slight indentations, small grooves or slight discolouration. 

Surface quality B

The better side must be free of defects that can spoil the uniform appearance of a high-quality paint or of an electrolytic coating. The other side must at least conform to surface quality A. Not all combinations of thickness and width are available in surface quality B. Please contact us for details. 

Inspected side

As a rule, the upper side of the strip is inspected; on request, the strip can be wound so that the inspected side is the underside.

 

Surface texture/roughness

Cold-rolled annealed and skin-passed steel is available in several surface textures. Unless specified otherwise, Tata Steel will supply normal roughness. The table below shows the range of surface textures according to EN 10130:2006.

 

 

Roughness Ra (µm)

EN 10130: 2006

Symbol

cut off 0.8 mm

extra-bright 1

-

≤ 0.3

bright

b

≤ 0.4

semi-bright

g

≤ 0.9

normal

m

0.6 - 1.9

rough

r

> 1.6

extra-rough 2

-

3.5 - 5

1. Not in EN 10130:2006 - Tata Steel’s own specification. Please contact us regarding the availability
2. Not in EN 10130:2006 - Tata Steel’s own specification, measured with a cut off of 2.5 mm
Other surface textures are available to meet your requirements - please contact us for details.

Preservative oil

The standard oil applied by Tata Steel acts as a protective coating. Other types of oil may be available to meet your requirement.
Tata Steel offers a range of oiling levels from 0.25 - 1.7 g/m2 per side.
Other oiling levels are available on request. Tata Steel is not responsible for the risk of corrosion during storage or shipment if material is ordered in the un-oiled condition.

Surface cleanliness

Tata Steel can guarantee improved surface cleanliness on request for batch-annealed products. The cleanliness is tested with a tape test, in which the loss of reflection is measured. The reflection gives an indication of the oil residue on the annealed product. Two levels of loss of reflectivity are available for batch annealed products: a maximum of 20% or a maximum of 30%. Continuously-annealed products typically exhibit a loss of reflection up to around 10%.

 

 

EN-Engineering-Product-Cold-rolled-Ymvit enamelling-Ymvit 01-Properties TSN

Properties

Properties


Mechanical properties

Steel for enamelling has the following mechanical properties (skin-passed) - these are measured transverse to the rolling direction:

Tata Steel Grade Ymvit 01
EN 10209: 2013 Grade DC01EK
Max. yield strength Re 1,2,3 N/mm² 270
Tensile strength Rm N/mm² 270 - 390
Elongation 3 % 30
r-value r90 -
ravg -
FLD Yes/No -
1. The values of the yield strength are those of the 0.2% yield strength for products that do not present a definite yield point, and the lower yield strength ReL for the other products.
2. For a thickness of 0.5 mm < t < 0.7 mm the maximum value of the yield strength is increased by 20 N/mm² and the minimum elongation after fracture is decreased by 2%.
3. For a thickness of t ≤ 0.5 mm the maximum value of the yield strength is increased by 40 N/mm² and the minimum elongation after fracture is decreased by 4%.
   Elongation after fracture A uses test piece length L0 = 80 mm.
4. The r value applies to a thickness of t ≥ 0.5 mm.
   For a thickness of t > 2 mm, the r value is decreased by 0.2.
5. For a thickness of t ≥ 1.5 mm the maximum value of the yield strength is 225 N/mm².
 

Chemical composition

Tata Steel complies with the following cast analysis: