Type: Carbon Steel Plate,Low-carbon structural steel
Material: S235JR.
Material number:1.0038
Wall Thickness: 3 mm.
Width: 1500 mm.
Length: 6000 mm.
Country:Vietnam
China S235JR Carbon Steel Plate Factory GNEE Provides S235JR Carbon Steel Plate, Width 1500 mm, Length 6000 mm, Wall Thickness 3 mm.
S235JR is a low-carbon, non-alloy European standard (EN 10025-2) structural steel known for its good weldability, toughness, and minimum yield strength of 235 MPa. The "S" stands for structural steel, "235" for the yield strength, and "JR" indicates a Charpy impact test value of at least 27 Joules at 20°C.
It is widely used for structural parts in civil engineering, industrial facilities, and infrastructure like bridges and transmission towers, and it is equivalent to other widely used grades such as ASTM A36 and JIS SS400.
Equivalent Grades
While S235JR is an EN standard, it has equivalents in other international standards:
- ASTM A36:An equivalent mild steel common in the Americas.
- JIS SS400:An equivalent mild steel often used in Asia.
- GB Q235B:A Chinese standard steel with similar properties.
Chemical composition of steel S235JR according to ladle sample for thicknesses not exceeding 40 mm, %
|
C |
Mn |
P |
S |
N |
Cu |
|
≤0.17 |
≤1.40 |
≤0.035 |
≤0.035 |
≤0.12 |
≤0.55 |
Mechanical properties of S235JR steel at room temperature
|
Nominal thickness (mm) |
Minimum yield strength, ReН, MPa |
Strength limit, Rm (MPa) |
|
≤16 |
235 |
360-510 |
|
>16≤40 |
225 |
360-510 |
|
>40≤100 |
215 |
360-510 |
|
>100≤150 |
195 |
350-500 |
|
>150≤200 |
185 |
340-490 |
|
>200≤250 |
175 |
340-490 |
|
>250≤400 |
165 |
330-480 |
Steel S235JR analogues
|
US |
1015 |
|
Germany |
RSt37-2, USt37-2, St37-2 |
|
France |
E24-2 |
|
UK |
40B |
|
Spain |
AE 235 B-FN, AE 235 B-FU |
|
Italy |
Fe360B |
|
Belgium |
AE 235-B |
|
Sweden |
1311, 1312 |
|
Portugal |
Fe360-B |
|
India |
IS226 |
|
Austria |
RSt360B, USt360B |
|
Japan |
SM400A, SS400 |
|
China |
Q235A, Q235B, Q235D |
|
Russia |
Ст2пс, Ст2сп, Ст3пс, Ст3сп |
EN 10025 2 S235JR steel is known as EN standard carbon steel, or called as mild steel in some places. The minimum yield strength of EN 10025 2 S235JR steel shall be 235 Mpa for nominal thickness, and tensile strength of EN 10025 2 S235JR steel shall be within 360-510Mpa. EN 10025 2 S235JR equivalent steel grades are GB Q235B, ASTM A36, JIS SS400, etc.
Chemical composition of EN 10025 2 S235JR equivalent steel grades:
| Grade | C (t≤16mm) | Si | Mn | P | S | Cu | N |
| S235JR | 0.19 max | - | 1.5 max | 0.045 max | 0.045 max | 0.60 max | 0.014 max |
| A36 | 0.26 max | 0.40 max | - | 0.040 max | 0.050 max | 0.20 min | - |
| SS400 | - | - | - | 0.050 max | 0.050 max | - | - |
| Q235B | 0.20 max | 0.35 max | 1.40 max | 0.045 max | 0.045 max | - | - |
Mechanical properties of EN 10025 2 S235JR equivalent steel grades:
| Grade | Yield strength ReH/(N/mm2) | Tensile strength Rm/(N/mm2) (3mm≤t≤16mm) | Elongation A/% | Charpy V test | |
| (t≤16mm) min | (3mm≤t≤40mm) min | Temperature/℃ | Impact energy (Longitudinal)/J min | ||
| S235JR | 235 | 360-510 | 26 | 20 | 27 |
| A36 | 250 | 400-550 | 23 | - | - |
| SS400 | 245 | 400-500 | 21 | - | - |
| Q235B | 235 | 370-500 | 26 | 20 | 27 |
EN 10025 2 S235JR equivalent steel grades are mainly used to produce structural parts of the bolted and welded steel in dustrial area. BBN steel is experienced in supplying all the EN 10025 2 S235JR equivalent steel grades: S235JR steel plates, A36 steel plates, SS400 steel plates, Q235B steel plates, etc. Welcome to contact us for more information about EN 10025 2 S235JR equivalent steel grades.
There are many examples of European grades of structural steel – for example, S195, S235, S275, S355, S420, and S460.
In line with the European Standard classifications, structural steels must be referenced using standard symbols including but not limited to S, 235, J2, K2, C, Z, W, JR, and JO, where:
'S' denotes the fact that it is structural steel;
'235' which relates to the minimum yield strength of the steel (tested at a thickness of 16mm);
'J2', 'K2', 'JR', and 'JO' all demonstrate the material toughness in relation to the Charpy impact or 'V' notch test methodology;
'W' is weathering steel (atmospheric corrosion-resistant);
'Z' represents structural steel with improved strength perpendicular to the surface, and
'C' is cold-formed.
EU and US Equivalent Grades
|
EU |
US |
|
S235 |
A283C |
|
S275 |
A570Gr40 |
|
S355 |
A572Gr50 |
Chemical Composition of Structural Steels - S235, S275 and S355
The Chemical composition of Structural Steel is extremely important and highly regulated. It is a fundamental factor which defines the Mechanical properties of the steel material. In the following table you can see the Max % levels of certain regulated elements present in European Structural steel grades S235, S275 and S355.
|
EU Grade |
C% |
Mn% |
P% |
S% |
Si% |
|
S235 |
0.22 max |
1.60 max |
0.05 max |
0.05 max |
0.05 max |
|
S275 |
0.25 max |
1.60 max |
0.04 max |
0.05 max |
0.05 max |
|
S355 |
0.23 max |
1.60 max |
0.05 max |
0.05 max |
0.05 max |
The chemical composition of structural steel is incredibly important to the engineer and will change with specific grades depending on their intended use. For example, S355K2W is a structural steel that has been hardened, denoted by K2, and has been designed with a chemical composition to withstand increased weathering - W. Therefore, this grade of structural steel will have a slightly different chemical composition to the standard S355 grade.
Yield Strength
The yield strength of structural steel measures the minimum force required to create a permanent deformation in the steel. The naming convention used in European Standard EN10025 refers to the minimum yield strength of the steel grade tested at 16mm thick.
|
Structural Steel Grade at 16mm |
Minimum Yield Strength at nominal thickness 16mm |
|
|
psi |
N/mm2 (MPa) |
|
|
S235 |
33 000 |
235 N/mm2 |
|
S275 |
36 000 |
275 N/mm2 |
|
S355 |
50 000 |
355 N/mm2 |
Tensile Strength
The Tensile Strength of structural steel relates to the point at which permanent deformation occurs when the material is pulled or stretched laterally along its length.
|
Structural Steel Grade |
Tensile Strength MPa at Nom thickness between 3mm and 16mm |
|
S235 |
360 – 510 MPa |
|
S275 |
370 – 530 MPa |
|
S355 |
470 – 630 MPa |
Typical Structural Steel 'Sections' / Cross-Sectional Shapes
Structural steel comes in many grades but is normally sold pre-formed with a defined cross-sectional shape, designed for specific applications. For example, it is common to find structural steel sold in I-beams, Z-beams, box lintels, hollow structural section (HSS), L-shaped and steel plate.
can S355 be welded in A36 steel?
Yes
I NEED INORMATION USE OF S355 IN MARINE STRUCTURES,does anyone have any advise what steel would be best?
china steel grade q345b is enough.
Is S275JR is equivalent to S355?
no,s235 is ok. s355 is higher strength than s275 and s235.
what is the approximately yield stress for a S355 STEEL with corrosion, is there any data about it?
s355 yield strength about 424mpa.
can we weld the S355 steel to S275 grade steel?
yes.
I want to know the yield strength, tensile strength and elongation of HEB160, HEB180 grade S235JR.
in common yield strength is 326,tensile: 471. elongation:32.
What is the Chinese equivalent of S235JR steel?
Q235B
The closest Chinese equivalent to S235JR (EN 10025-2) is Q235B (GB/T 700-2006). While these grades share similar mechanical properties, subtle differences in composition and performance must be carefully evaluated for compliance and safety.
Is A36 equivalent to S235JR?
ASTM A36 material is equivalent to steel S235JR. Below is for steel S235JR VS A36 material. Steel S235JR and A36 material has little difference but more common points in chemical composition and mechanical properties. For most projects, they can meet demands of each other.
What is the difference between ST 37 and S235JR?
Summary: ST37-2 and S235JR are very similar in terms of composition and mechanical properties, with both being low-carbon structural steels. S235JR is the modern equivalent under the European EN 10025-2 standard and is generally preferred for new construction projects in Europe.
