What is S275J0 material?
S275J0 is a non-alloy structural steel grade defined in EN 10025-2.
The "S" means structural steel, "275" indicates a minimum yield strength of 275 MPa, and "J0" means it must meet 27 J impact energy at 0°C.
It is commonly used in construction, engineering, bridges, and welded structures requiring low-temperature toughness.
1. Mechanical Properties
| Property | Value / Requirement | Standard / Notes |
|---|---|---|
| Yield Strength (ReH) | ≥ 275 MPa | EN 10025-2 |
| Tensile Strength (Rm) | 410–560 MPa | EN 10025-2 |
| Elongation (A5) | ≥ 20% | Typical for structural steel |
| Impact Energy (Charpy V-notch) | ≥ 27 J at 0°C | "J0" rating |
| Density | 7.85 g/cm³ | General steel value |
| Hardness (HB) | ~120–180 HB | Brinell hardness |
2. Chemical Composition (Typical % by weight)
| Element | Max / Typical (%) |
|---|---|
| C | 0.20 – 0.22 |
| Si | ≤ 0.55 |
| Mn | 1.40 – 1.60 |
| P | ≤ 0.035 |
| S | ≤ 0.035 |
| N | ≤ 0.012 |
What's the advantage of S275J0 material?
1. Guaranteed Low-Temperature Toughness
Minimum 27 J impact energy at 0°C (Charpy V-notch).
Safer than S275JR in colder environments.
Reduces the risk of brittle fracture.
2. Good Weldability
Low carbon content allows excellent welding performance.
Suitable for all common welding methods without preheating in most cases.
3. Reliable Mechanical Properties
≥275 MPa yield strength and 410–560 MPa tensile strength.
Provides stable performance in structural applications.
4. Versatility in Applications
Used in building frames, bridges, engineering structures, offshore equipment, and general fabrication.
Suitable for both welded and bolted structures.
What is S275J0 material equivalent to?
S275J0 is equivalent to grades such as ASTM A572 Grade 42 (USA), DIN St 44-3 U (Germany), and UNI Fe 430 C (Italy). The Chinese equivalent is Q275C and the JIS equivalent is SM400B. These equivalents share similar mechanical properties like yield strength and are often used for similar structural applications.
S275J0 Equivalent Grades
| Country / Standard | Equivalent Grade |
|---|---|
| American (ASTM) | A572 Grade 42 |
| German (DIN) | St 44-3 U |
| Italian (UNI) | Fe 430 C |
| Japanese (JIS) | SM400B |
| Chinese (GB) | Q275C |
GNEE Steel also supplies a variety of high-strength steel plates, such as A514 Grade F, A572 Grade 50, A588 Grade A, S355JR, S690Q, SS400, S690QL, Q345B, Q345E, etc. If you want to know more about other types of steel plates, you can call the consultation hotline at +8615824687445 or send an email to info@gneesteels.com. You are welcome to consult us, and we are very willing to answer your questions.
