What Is S355jr low alloy high strength steel plate
S355JR is a low alloy high strength structural steel in accordance with the European standard EN10025. S355JR steel in China is a low-alloy high-strength structural steel with a hardness of 70-80B and a yield strength between 300-400MPa.
The European standard low steel plate alloy grade is generally represented by S structural steel, the yield strength of the steel plate is 355MPa, plus the grade of the steel plate J0, in accordance with the order of composition, the delivery status of the steel plate can also be expressed in the supplement, such as S355JR+AR, the grade of different strength structural steel S420J2 (the fourth quarter steel plate grade J0 starts).
Mechanical Properties of S355jr low alloy high strength steel plate
| products |
 |
| Model number | S355JR,S 355 JR,S355 JR,EN 10025-2 S355JR,S355Jr steel plate |
| Executive standard | EN10025 |
| Delivery status | Delivery status is hot rolling delivery status, can also be delivered according to normalizing or normalizing rolling, TMCP heat treatment status. |
| Yield strength | ≥355MPa |
| Tensile strength | 470MPa-630MPa |
| Elongation after fracture | ≥22% |
| Impact temperature | 20℃ |
Chemical Composition of S355jr
| S355JR steel plate | |
|---|---|
| C | ≤0.24% |
| Si | ≤0.55% |
| Mn | ≤1.60% |
| P | ≤0.025% |
| S | ≤0.025% |
| Cu | ≤0.55% |
Products Characteristics
S355JR is a high-strength steel plate with high tensile strength and yield strength, as well as good plasticity and toughness. This steel plate is treated by special smelting process and rolling process and has the following characteristics:
01
High strength
The tensile strength and yield strength of S355JR have reached different standard values respectively, which can meet the requirements of various high-strength structural parts.
02
Good plasticity and toughness
The S355JR is excellent in plasticity and toughness, able to withstand large deformation while maintaining structural stability.
03
Good weldability
S355JR carbon steel plate has good welding performance, easy to welding processing, can meet the requirements of various welding processes.
04
Good corrosion resistancev
S355JR after special anti-corrosion treatment, has good corrosion resistance, can extend the service life of structural parts.
Other grades of steel plate under EN10025 standard
| EN10025-2 | S235 | S275 | S355 | S450 |
| EN10025-3 | S275N | S355N | S420N | S460N |
| EN 10025-4 | S275ML | S355M | S420M | S460ML |
Product Parameter
Product Picture
Product drawing
Basic feature
| Title | details |
| Material | S355jr |
| Thickness | 8 mm -150 mm |
Surface Treatment |
With anti-rust painting. |
| Width | 1500 mm - 2600 mm |
| Application | 1. Construction field: S355JR carbon steel plate can be used to make building structural parts, such as Bridges, high-rise buildings, etc., which can improve the stability and safety of building structures. 2. Mechanical manufacturing field: S355JR carbon steel plate can be used to manufacture various mechanical parts, such as auto parts, mining machinery, etc., to improve the reliability and service life of mechanical equipment. 3. Petrochemical field: S355JR carbon steel plate can be used to manufacture petrochemical equipment, such as reactors, storage tanks, etc., which can improve the corrosion resistance and safety of equipment. 4. Other fields: In addition to the above fields, S355JR carbon steel plate can also be used in power, aerospace, shipbuilding and other fields. |
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