Ymvit steel for enamelling is steel for cold forming with a special chemical composition and method of processing. Tata Steel Strip Products IJmuiden has the correct steel grade for direct and conventional enamelling and for one or two layered enamelling. Each coil is tested for susceptibility to fishscaling. If the steel is to be enamelled directly, then each coil is also tested for its pickling qualities.

The products in this section are marketed under the brandname Ymvit.

• Ymvit Ultra 03/04 is the ultimate enamelling steel patented by Tata Steel. Decarburized in the steelplant, titanium free, cold-rolled and batch annealed, it has perfect adhesion of coating. Ymvit Ultra has improved resistance to carbon boiling and fish scaling.
• Ymvit Extra 06 is a titanium stabilized enamelling steel fit for all purposes when suitable enamelling processes are used. It is especially suitable for applications where extra deep drawing is necessary.

• bathtubs
• washing machines
• stoves and sinks
• wall panels
• heat-exchange panels (pore free)

Steel for enamelling complies with the following standards: 

Tata Steel	European standard	National standards
	EN 10209	UK	Germany	USA
Ymvit®	Grade	BS 1449, part 1	DIN 1623, part 3	ASTM A 424
Ground Coat Enamelling (if necessary followed by cover coat)
Ymvit 01	DC01EK	CR 4VE/3VE	-	type II CS
Ymvit 04	DC04EK	CR 2VE/1VE	-	type II DS
Ymvit 04 plus	DC04EK (bath tubs)	-	-	-
Ymvit 06	DC06EK	-	-	type III IF
Two Coat/One Fire and Pore Free Enamelling
Ymvit Ultra 03	DC03ED	-	ED 3	type I CS
Ymvit Ultra 04	DC04ED	-	ED 4	type I DS
Ymvit Extra 06	DC06ED	-	-	type III IF
Direct White Enamelling
Ymvit Ultra 03	DC03ED	-	ED 3	type I CS
Ymvit Ultra 04	DC04ED	-	ED 4	type I DS
Ymvit Extra 06	DC06ED	-	-	type III IF

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

Tata Steel	EN 10209	Re max. 1 2 3)	Rm min.-max.	A80 min. 2 3)	rav. min. 4)	FLD
Ymvit®	Grade	N/mm²	N/mm²	%
Ymvit 01	DC01EK	270	270-390	30	-	-
Ymvit 04	DC04EK	220 6)	270-350	36	-	-
Ymvit 04 plus	DC04EK	210	270-350	38	-	-
Ymvit 06	DC06EK	190 6)	270-350	38	1.6	-
Ymvit Ultra 03	DC03ED	240 6)	270-370	34	-	-
Ymvit Ultra 04	DC04ED	210 5 6)	270-350	38	-	Yes
Ymvit Extra 06	DC06ED	190 6)	270-350	38	1.6	Yes

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 R_eL 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%.
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.
⁶⁾ For design purposes, a lower yield strength R_eL of at least 120 N/mm² can be assumed.

Tata Steel Strip Products IJmuiden complies with the following heat analysis with maximum values in weight percentages: 

Tata Steel	EN 10209	C	Mn	Ti	Cu 1)
Ymvit®	Grade	Max.	Max.	Max.	Max.
Ymvit 01	DC01EK	0.08	0.50	-	0.060
Ymvit 04 / Ymvit 04 plus	DC04EK	0.08	0.40	-	0.050
Ymvit 06	DC06EK	0.02	0.35	0.30	0.040
Ymvit Ultra 03	DC03ED	0.004	0.50	-	0.040
Ymvit Ultra 04	DC04ED	0.004	0.50	-	0.040
Ymvit Extra 06	DC06ED	0.004	0.35	0.30	0.040

¹⁾ Copper concentration is dependent on phosphorus concentration.
 

The elements P and Cu are kept within certain limits to ensure that the pickling qualities of the steel for enamelling are as constant as possible. Under normal conditions this leads to a reproducible enamelling result.

Steel for vitreous enamelling is available in the following dimensions in mm: 

Thickness	Max. Width
	Ymvit 01	Ymvit 04	Ymvit 04 plus	Ymvit Ultra 03 and Ultra 04	Ymvit 06 and Ymvit Extra 06
from-up to			(Bath tubs)
0.37 - 0.40	1540	1500	-	-	-
0.40 - 0.50	1580	1540	-	1900	1820
0.50 - 0.60	1650	1610	-	1940	1950
0.60 - 0.70	1720	1680	-	1960	1980
0.70 - 0.80	1770	1730	-	1960	1990
0.80 - 0.90	1820	1780	1780	1960	2010
0.90 - 1.00	1870	1830	1830	1960	2010
1.00 - 1.10	1910	1900	1850	1960	2010
1.10 - 1.20	1970	1960	1820	1960	2010
1.20 - 1.30	1980	1970	1780	1960	2010
1.30 - 1.40	2010	2000	1740	1960	2010
1.40 - 1.50	2010	2000	1720	1960	2010
1.50 - 1.60	2010	2000	1680	1860	1950
1.60 - 1.70	2010	2000	1660	1760	1850
1.70 - 1.80	1940	1930	1620	1660	1750
1.80 - 1.90	1910	1900	1600	1580	1660
1.90 - 2.00	1880	1870	1570	1510	1570
2.00 - 2.10	1850	1840	1530	1430	1500
2.10 - 2.20	1830	1820	1500	-	-
2.20 - 2.30	1800	1790	1500	-	-
2.30 - 2.40	1770	1760	1500	-	-
2.40 - 2.50	1750	1740	1500	-	-
2.50 - 2.60	1720	1710	1500	-	-
2.60 - 2.70	1680	1670	1500	-	-
2.70 - 2.80	1640	1630	1500	-	-
2.80 - 2.90	1600	1590	1500	-	-
2.90 - 3.00	1540	1530	1500	-	-

Other dimensions can be discussed with our representatives.

Steel for enamelling shall be supplied with normal finish (Ra between 0.6 µm and 1.9 µm).

Steel for direct enamelling; Ymvit Ultra 03 and Ymvit Ultra 04, normally have a rhombic pattern. Ymvit Extra 06 normally has a stripe pattern.

If a different roughness is ordered, a rhombic or stripe pattern is not possible.