S355 Grade ranges S355JR, S355J0, S355J2, S355K2 which are non-alloy structural steel material specified in EN 10025 standard.
"S" means structural, "355" representas yield strength at 355 Mpa minimum. JR specified the steel need to be impact testing at 27 Joules with logitudinal Charpy V-Notch impact test at room temperature. Which there are different designations of charpy test includes J2, J0, and K2.
S355JR grade steel is an important material used in structural engineering. It gives excellent yield and tensile strength normally supplied with various treatments and test, to make sure it is a wise option to use in different industries and projects.
EN10025 European Standard Structural Steel
EN 10025 is the European standard structural steel for Hot rolled products in carbon steel. S355 grade is also defined in this standard, other than this grade there are also S235, S275, S460, S550, S620, S690 with conditions hot rolled, normalized, quenched, and tempered.
Symbols used in EN 10025
S... Structural Steel
E... Engineering Steel
355... Minimum yield strength in Mpa at 16mm test sample
...JR.. Longitudinal Charpy V-notch impacts 27J at +20℃
...J0.. Longitudinal Charpy V-notch impacts at 27J at 0℃
...J2.. Longitudinal ... impacts at 27J at -20℃
...K2.. Longitudinal ... mpacts at 40J at -20℃
...+AR Supply conditions as rolled
...+N Supply condition normalized or normalized rolled
...NL... Normalized condition Longitudinal impacts at a temperature not lower than -50℃,like S275N, S355NL.
...M... Thermomechanically rolled Longitudinal impacts at temperature not lower than -20℃
...ML... Longitudinalimpacts not lower than -50℃, like S355M, S460ML
...Q.. Quenched and tempered condition Longitudinal impacts not more than -20℃
...QL.. Not more than -40℃
...QL1.. Not more than -60℃ like S460Q, S690QL
...W.. Improved atmospheric corrossion resistance like S355J0W+AR
...P.. Greater phosphorous content (grade S355 only)
Chemical Composition S235/S275/S355JR, J0, J2 (in %)
Grade | Carbon, Max | Si, Max | Mn, Max | P, Max | S, Max | N, Max | Cu, Max |
|---|---|---|---|---|---|---|---|
S235JR, 1.0038 | 0,17 | --- | 1,40 | 0,035 | 0,035 | 0,012 | 0,55 |
S235J0, 1.0114 | 0,17 | --- | 1,40 | 0,030 | 0,030 | 0,012 | 0,55 |
S235J2, 1.0117 | 0,17 | --- | 1,40 | 0,025 | 0,025 | --- | 0,55 |
S275JR, 1.0044 | 0,21 | --- | 1,50 | 0,035 | 0,035 | 0,012 | 0,55 |
S275J0, 1.0143 | 0,18 | --- | 1,50 | 0,030 | 0,030 | 0,012 | 0,55 |
S275J2, 1.0145 | 0,18 | --- | 1,50 | 0,025 | 0,025 | --- | 0,55 |
S355JR, 1.0045 | 0,20 | 0,55 | 1,60 | 0,035 | 0,035 | 0,012 | 0,55 |
S355J0, 1.0553 | 0,20 | 0,55 | 1,60 | 0,030 | 0,030 | 0,012 | 0,55 |
S355J2, 1.0577 | 0,20 | 0,55 | 1,60 | 0,025 | 0,025 | --- | 0,55 |
Tensile Strength
EN 10025 | Yield Strength ReH Mpa Nominal Thickness mm | Tensile Strength Rm Mpa Nominal Thickness mm | |||||
|---|---|---|---|---|---|---|---|
Grade | ≤16mm | ＞16 ≤40mm | ＞40 ≤63mm | ＞63 ≤80mm | ＞80 ≤100mm | ≥3 ≤100mm | ＞100mm ≤150mm |
S235JR | 235 | 225 | 215 | 215 | 215 | 360 to 510 | 340 to 490 |
S275JR | 275 | 265 | 255 | 245 | 235 | 410 to 560 | 400 to 540 |
S355JR | 355 | 345 | 335 | 325 | 315 | 470 to 630 | 450 to 600 |
S450J0 | 450 | 430 | 410 | 390 | 380 | 550 to 720 | 530 to 700 |
Test Methods
Chemical Analysis
Mechanical Tests
Ultrosonic Testing
Retests
Our Supply Range:
Description: Carbon Structural Steel Plate EN10025
Grade: EN10025 S235 / S275 / S355JR, J0, J2
Manufacturing Types: Hot Rolled, Heat Treated
Thickness: 5 to 150 mm
Width: 0.6m to 3m
Length: 6m, 12m, customized
Surface: Natural, Painted
Packing: Standard sea packing, bundled with streel strip.
Customized cutting: Laser Cut, Plasma Cut, CNC Cut.