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Low-Carbon Steel strip:

Tinned

The chemical composition is not specified in standards.

Element % in weight (maximum, unless another value is established)
(Type A) (Type B)
C 0.04 - 0.08 0.09 - 0.12
Mn 0.18 - 0.35 0.30 - 0.50
S 0.02 0.02
P 0.02 0.02
Si 0.03 0.03
Cu 0.08 0.08
Ni 0.08 0.08
Sn 0.02 0.02
As 0.02 0.02
Mo 0.02 0.02
Cr 0.08 0.08
N 0.008 0.008
Al 0.02 - 0.08 0.02 - 0.08
Others 0.02 0.02

Type B steel is not suitable for use in welding.

 

Classification of symbols Numerical classification European Standard (EN)
TS230 1.0371 EN 10202
TS245 1.0372 EN 10202
TS260 1.0379 EN 10202
TS275 1.0375 EN 10202
TH415 1.0377 EN 10202
TH620 1.0374 EN 10202
  Approximate international equivalents
Classification of symbols Numerical classification European Standard (EN) Specific designation in European Standards EN 10202 and EN 10203 US (AISI) Japan (JIS) China (GB)
           
TS230 1.0371 EN 10202 T50BA            
TS245 1.0372 EN 10202 T52BA            
TS260 1.0379 EN 10202 T55BA            
TS275 1.0375 EN 10202 T57BA            
TH415 1.0377 EN 10202 T61CA            
TH620 1.0374 EN 10202 DR620            
Classification of symbols Numerical classification European Standard (EN) Mechanical properties and hardness requirements
Yield strength at 0.2% (Rp) N/mm² Tensile strength (Rm) N/mm²
Nominal values Dev. Expected values Dev.
TS230 1.0371 EN 10202 230 ± 50 325 ± 50
TS245 1.0372 EN 10202 245 ± 50 340 ± 50
TS260 1.0379 EN 10202 260 ± 50 360 ± 50
TS275 1.0375 EN 10202 275 ± 50 375 ± 50
TH415 1.0377 EN 10202 415 ± 50 435 ± 50
TH620 1.0374 EN 10202 620 ± 50 625 ± 50

 

HARDNESS VALUES - SINGLE REDUCED SHEETS EN 10202

Rockwell hardness values HR Tm (for information purposes only)
Thickness (mm) t ≤ 0.21 0.21 < t ≤ 0.28 t > 0.28
New types Nominal value Dev. Nominal value Dev. Nominal value Dev.
TS230 Max. 53 - Max. 52   Max. 51 -
TS245 53 ± 4 52 ± 4 51 ± 4
TS260 56 ± 4 55 ± 4 54 ± 4
TS275 58 ± 4 57 ± 4 56 ± 4
TH415 62 ± 4 61 ± 4 60 ± 4
TH620 - - - - - -

SURFACE FINISH

APPROVED FINISHES EN 10202
Product finish Code Base Steel Nominal roughness of the base steel μm Ra Terms and definitions
Bright BR Smooth ≤ 0.35 A finish resulting from the use of working rolls in the temper mill, with fine grinding, and, in the case of tin plates, the remelting of the layer of tin.
Fine stone FS Fine stone 0.25 - 0.45 A finish characterised by directional grooves, resulting from the use of rolls in the temper mill, with less fine grinding than is used for a bright finish and, in the case of tinplates, the remelting of the layer of tin.
Stone ST Stone 0.35 - 0.60 A finish characterised by directional grooves, resulting from the use of rolls in the temper mill, with less fine grinding than is used for a bright finish and, in the case of tinplates, the remelting of the layer of tin.
Silver SG Shot blasted ≥ 0.90 A tinplate product whose tin layer has been remelted, resulting from the use of shot blasted rolls in the temper mill.
Matt MM Shot blasted Variable A tinplate product resulting from the use of shot blasted rolls in the temper mill and not remelting the tin layer.

 

COATING 

PRECISE VALUES FOR TIN COATINGS EN 10202
Nominal coating g/m² Applications with high-speed welding (HS) Other applications (SP)
min g/m² max g/m² min g/m² max g/m²
2.80 2.3 3.9 2.3 No technical requirements
5.60 4.7 7.2 4.7 No technical requirements
8.40 7.15 No technical requirements 7.15 No technical requirements
11.20 9.55 No technical requirements 9.55 No technical requirements

HICKNESS TOLERANCES

Thickness tolerances and edge reduction according to EN 10202
The thickness of the material must meet the following requirements:
a) Deviation from the agreed thickness, measured on the centre line of the strip, must not exceed ± 5%.
b) Deviation from the agreed thickness, measured at any point at a distance of no less than 6 mm from the sheared edge, must be between +5% and -8%.

 

WIDTH TOLERANCES

Nominal thickness t dimensional width tolerances for strips with sheared edges under a commercial agreement1)
3-15 15-50 50-150 >150
>= <
0,20 2) 0,40 0;+0,15 0;+0,15 0;+0,15 0;+0,20
0,40 1,00 0;+0,17 0;+0,18 0;+0,20 0;+0,24
1,00 1,50 0;+0,20 0;+0,20 0;+0,20 0;+0,30
1,50 2,50 on request 0;+0,26 0;+0,30 0;+0,32
2,50 5,00 on request on request 0;+0,32 0;+0,35

Sizes in mm.

1) Other, closer dimensional tolerances are possible under a commercial agreement . 

2) Including the value t=0.20.

 

EDGE CAMBER TOLERANCES

Nominal width(W) Edge curve tolerances under commercial agreement
Maximum deviation
2000 mm
Thickness (t)
t ≤ 1,20 mm t > 1,20 mm
3 ≤ W < 6 10,00 15,00
6 < W ≤  10 8,00 12,00
10 < W ≤  20 4,00 6,00
20 < W ≤  350 2,00 4,00

Sizes en mm.

* The data contained in this catalogue are for information purposes only and are not under any circumstances, contractual supply conditions. Errors and omissions excepted.
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