Hair
ST44 Black Sheet
ST44 Quality Sheet Metal Slab is a flat steel in the form of rolls or sheets with thicknesses ranging between 1.50 - 20.00 mm, which is obtained by hot rolling the rectangular cross-section semi-product, which is formed as a result of solidification of liquid steel by continuous casting technique, in a hot rolling mill. ST44 Quality Steel Sheet Black steel sheets are flat steels produced by hot rolling. They are the most produced and consumed products in Turkey and in the world. Especially in developed and developing countries, production and consumption are increasing every year. The usage areas of black sheets are very wide.
Classroom | ST44-3 (S275J0) |
Number | 10.144 |
Classification | Non-alloy grade structural steel |
Standard | EN 10025-2: 2004 Hot rolled structural steels products. Technical delivery conditions for non-alloy structural steels |
Chemical Properties of ST44 Steel %
C | Mn | P | S | N | Cu | CEV |
max 0.18 | max 1.5 | max 0.035 | max 0.035 | max 0.012 | max 0.55 | max 0.42 |
Nominal thickness = <40 (mm) CEV max = 0.40
Mechanical Properties of ST44 Steel
Nominal thickness (mm): | Up to 3 | 3 - 100 | 100 - 150 | 150 - 250 |
Rm - Tensile strength (MPa) Flat and long products | 430-580 | 410-560 | 400-540 | 380-540 |
Nominal thickness (mm): | Up to 16 | 16 - 40 | 40 - 63 | 63 - 80 | 80 - 100 | 100 - 150 | 150 - 200 | 200 - 250 |
ReH - Minimum yield strength (MPa) Flat and long products | 275 | 265 | 255 | 245 | 235 | 225 | 215 | 205 |
KV - Impact energy (J) longitude, | -20 ° | 0 ° | + 20 ° |
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27 | 27 | 27 |
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Nominal thickness (mm): | Up to 1 | 1 - 1,5 | 1,5 - 2 | 2 - 2,5 | 2,5 - 3 |
A - Min. elongation Lo = 80 mm (%) parallel, | 15 | 16 | 17 | 18 | 19 |
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Nominal thickness (mm): | Mar.40 | 40 - 63 | 63 - 100 | 100 - 150 | 150 - 250 |
A - Min. elongation Lo = 5,65 √ So (%) parallel, | 23 | 22 | 21 | 19 | 18 |
Hot Rolled, Non-alloy Structural Steels
Chemical Composition (%) | |||||||||||||||
Standard Provision | ERDEMİR | C d(thickness, mm) | Mn | P | S | Si | Cu | N(1) | CE(IIW) (4) max. (%) | ||||||
Quality No | <16 | 16<d<40 | 40<d<100 | d (mm) | |||||||||||
Standard | Quality | max. | max. | max. | max. | max. | max. | max. | max. | max. | <30 | 30<d<40 | 40<d<100 | ||
EN 10025-2 | S275JR+AR | 3244(5) | 0.21 | 0.21 | 0.22 | 1.50 | 0.035 | 0.035 | - | 0.55 | 0.012 | 0.40 | 0.40 | 0.42 | |
Explanations
5) Max. carbon equivalent (CEV) for S275 and S355 grades can be increased by %0.02 for %Si ≤ 0.04, %0.01 for %Si ≤ 0.25.