TIN MILL

Characteristic

All steels are produced using modern BOF technology; the prescribed chemical composition is strictly maintained. Fully killed steels are continuously cast into slabs. Sheets are rolled on a five-stand mill. Afterwards the material is continuously or batch annealed and skin passed (SR sheets) or double reduced (DR sheets). The tin layer is continuosly applied on both sides of the sheet by electrolytic tin coating.

Tin mill products are provided as wide coils or sheets with tin using the MSA based process.

Applications

Black plate – used for the production of transport containers, lids, toys, guide signs and for further metal coating.
Electrolytic tinned plate – used for the production of food packages, beverage containers, decorative tins, lids, closures, 2 piece cans, 3 piece cans, drawn cans, ends, crown caps, toys and other products.

TECHNICAL SPECIFICATION

QUALITY - SINGLE REDUCED (SR)

Continual annealed (CA)	Thickness (CA)	Width	Exception	Batch annealed (BA)	Thickness (BA)	Width	Exception
Continual annealed (CA)	(mm)	(mm)	thick. - width		(mm)	(mm)	thick. - width
TH370, TH415, TH435	0,180 - 0,400	720 - 1000	0,170 - max 850	TS245, TS260, TS275, TS290	0,180 - 0,400	720 - 995	0,170 - max 820
TH460N	0,180 - 0,400	720 - 995	0,170 - max 830

N - nitrogenised chemistry

QUALITY - DOUBLE REDUCED (DR)

Continual annealed (CA)	Thickness (CA)	Width	Exception	Batch annealed (BA)	Thickness (BA)	Width	Exception
Continual annealed (CA)	(mm)	(mm)	thick. - width		(mm)	(mm)	thick. - width
TH520	0,160 - 0,290	720 - 985	0,150-0,155 - max 915	TS480, TS520	0,140 - 0,280	720 - 970
TH550	0,155 - 0,290	720 - 985	0,150 - max 965	TS550	0,140 - 0,260	720 - 985	0,130-0,135 - max 920
TH580	0,150 - 0,290	720 - 970		TS550N	0,130 - 0,260	720 - 920
TH620	0,140 - 0,290	720 - 970			0,130 - 0,260	720 - 920
TH550M, TH580M, TH620M¹⁾	0,140 - 0,210	720 - 985
TH550N	0,170 - 0,290	720 - 985
TH550D, TH580D, TH620D¹⁾	0,140 - 0,250	720 - 985
TH580N	0,165 - 0,290	720 - 985
TH620N	0,155 - 0,290	720 - 985

DIMENSIONS OF SHEETS AND COIL [mm]

Reduction	Annealing	Nominal	Width	Coil diameter (mm)		Weight (t)		Length of sheets (mm)
Reduction	Annealing	thickness (mm)	respect to previous table	inside	max. outside	coil	stack	Length of sheets (mm)
SR	CA	0,17	720 - 850	420 or (500)²⁾	1700 1800	3,0 - 11,80	0,5 - 2,7	500 - 1165
	CA	0,18 - 0,40	720 - 960 (1005)²⁾
	BA	0,17	720 - 820
	BA	0,18 - 0,40	720 - 960 (995)²⁾
DR	BA and CA	0,14 - 0,17	720 - 960 (965)²⁾
DR	BA and CA	0,175 - 0,29	720 - 960 (985)²⁾

WEIGHT OF TIN COATING

Tin layer⁵⁾
equal E	E 1,0/1,0	E 1,4/1,4	E 1,8/1,8	E 2,0/2,0	E 2,8/2,8	E 4,0/4,0	E 5,0/5,0	E 5,6/5,6	E 7,5/7,5⁴⁾	E 8,4/8,4^4)*
differential³⁾⁵⁾D	D 1,0/2,0	D 5,0/2,8	D 4,0/2,8	D 1,4/2,8	D 4,0/2,0	D 5,6/2,8	D 5,6/4,0	D 8,4/2,8^4)*	D 8,4/5,6⁴⁾	D 2,8/11,2⁴⁾

* available as K-plate (with increased layer of FeSn₂)

LIMITING DEVIATIONS OF THICKNESS

Standard	Deviation
EN 10 205/91	± 8,5 %
EN 10 202/01	± 5 %

SURFACE FINISH

Type	Roughness Ra [μm] SR	Roughness Ra [μm] DR
Fine Stone	0,25 - 0,45	0,25 - 0,45
Stone	0,35 - 0,60	0,35 - 0,60

SURFACE TREATMENT

Treatment technique	Designation of surface treatment material	Weight of treatment [mg.m^-2 / side]
passivation	311 (CDC Cathodic Sodium Dichromate)	3,5 - 9,0
	300 (SDCD Sodium Dichromate dip treatment)	1,0 - 3,0
	505/555 (Chromium Free Passivation Alternative, Ti/Zr based)⁶⁾	0,8 - 1,2
oiled	DOS (Dioctyl Sebacate)	2,00 - 15,0

¹⁾on request in special minimum earing quality M - medium, D - deep drawing
²⁾ subject to prior agreement
Other dimensions are subject to prior agreement
³⁾ marked bottom side of the strip
⁴⁾only for coils and sheets with width up to 970mm
⁵⁾other layers or combination are subject to prior agreement
⁶⁾technical application only (excluding food)