Regulatory degree mark
Target hardness (HR30T)
use
T-1
49±3
Particularly suitable for deep processing tanks that require flexibility
T-2
53±3
Suitable for deep processing tanks that require general flexibility
T-2.5
55±3
Suitable for can bodies or can lids that require good flexibility
T-3
57±3
Suitable for can bodies, covers, etc. requiring high hardness
T-3.5
59±3
Suitable for general cans requiring good toughness
T-4
61±3
Suitable for general cans requiring greater toughness
T-5
65±3
Suitable for can bodies or covers for large cans and internal pressure vessels requiring excellent bending resistance
DR-8
73
Suitable for can bodies and caps that require certain rigidity and strength of beer and carbonated beverage cans
DR-9
76
Suitable for can bodies and lids of canned beer and carbonated beverage cans that require certain rigidity and strength, and can bodies of DrD cans, etc.
DR-9M
77
Suitable for caps that require certain rigidity and strength of beer, carbonated drinks, etc.
DR-10
80
Suitable for high-grade bottle caps that require certain rigidity and strength
Note: 1. Annealing methods include box annealing and continuous annealing. When using a continuous annealing material, specify "CA" and add CA after T4 as shown in Example T4CA.2. Specify “BA†when using box annealing material. Add BA after T2.5 as shown in Example T2.5BA. ◆ According to steel grades The original tinplate steel grades are as follows, depending on the adjustment quality and application.
Steel type
Note
MR
Low residual trace components, excellent corrosion resistance, widely used for general purposes including container materials
L
Cu, Ni, Cr, Mo, and Other residual trace components are small, and they are used as a container material in which certain foods have special requirements for corrosion resistance.
D
AI killed steel for deep drawing and prone to Luders Lines Pattern processing.
â—† According to the amount of tin plating tin tin plating on both sides of the same or different two kinds, the nominal amount of tinplate and the minimum average value of the following table shows:Type mark
distinguish
Attachment mark
Nominal weight (g/m2)
The minimum average adhesion (g/m2)
Old JIS (G3303-1975)
Attachment mark (reference)
use
SPTE
Equal thickness tin plating
1.1/1.1
1.1/1.1
1.8
# 10
Tinplate with low tin content is generally used for containers with less corrosion resistance and for containers used for painting. Tinplate with high tin content is generally used for tin containers with high requirements for corrosion resistance and is not painted. Directly used container.
2.8/2.8
2.8/2.8
4.9
# 25
5.6/5.6
5.6/5.6
10.5
# 50
8.4/8.4
8.4/8.4
15.7
# 75
11.2/11.2
11.2/11.2
20.2
# 100
Differential thick tin plating
2.8/1.1
2.8/1.1
2.25/0.90
# 25/10
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