Product Range

Specifications

JSW Tinplate products have a wide variety of applications in both food and non-food product packaging and are available in both Single Reduced (SR) and Double Reduced (DR) variety. Double Reduced (DR) Tinplate is normally Thinner, Stronger, and Brighter, as compared to conventional Single Reduced Tinplate and gives more cans from each ton of Tinplate. Both the grades are tailor-made within the following ranges

Parameter		Minimum	Maximum
Tin coating		0.56 gsm	16.8 gsm
Thickness	Single Reduced	0.18 mm	0.60 mm
Thickness	Double Reduced	0.14 mm	0.21 mm
Width		650 mm	1250 mm

Temper

Different applications of tinplate require different degree of hardness for the base material. The desired hardness is established in the temper rolling mill/double cold rolling mill. The standard temper grades are designated according to the Rockwell Hardness Test. The doubly reduced (DR) temper is produced to obtain extremely high yield strength tinplate. Such tinplate enables the can-maker to produce thinner gauge and lighter cans, without compromising strength.

Single Reduced
Designation	Alternate Designation	Nominal Rockwell Hardness Values 30T
T-1	T-49	49
T-2	T-53	53
T-2.5	T-55	55
T-3	T-57	57
T-3.5	T-59	59
T-4	T-61	61
T-5	T-65	65

Doubly Reduced
Designation	Nominal Rockwell Hardness Values 30T
DR-7.5	71
DR-8	72
DR-8.5	73
DR-9	75
The standard temper grades are designated according to the Rockwell Hardness Test.

Coating Grades

Tin coating on the outer surface of the finished product depends on the desired aesthetic finish, while the coating for the internal surface depends on the material to be packed. Accordingly, multiple combination of coating is available as part of our product offering, as mentioned below.

Type	Designation of coating mass	Nominal coating mass (gsm)	Minimum avg. coating mass (gsm)
Equally Coated	2.8/2.8	2.8/2.8	2.45/2.45
	5.6/5.6	5.6/5.6	5.05/5.05
	8.4/8.4	8.4/8.4	7.55/7.55
	11.2/11.2	11.2/11.2	10.1/10.1

Differentially Coated	5.6/2.8	5.6/2.8	5.05 / 2.45
	8.4/2.8	8.4/2.8	7.55 / 2.45
	8.4 / 5.6	8.4 / 5.6	7.55 / 5.05
	11.2 / 2.8	11.2 / 2.8	10.1 / 2.45
	11.2 / 5.6	11.2 / 5.6	10.1 / 5.05
	11.2 / 8.4	11.2 / 8.4	10.1 / 7.55