- 1. What Is S355J2 (EN 10025-2)?
- 2. S355J2 Equivalent Overview Table（EN–ASTM–ASME–AISI–GOST–IS）
- 3. S355J2 vs ASTM A572 Grade 50 (Most Recognized Equivalent)
- 4. S355J2 vs GOST 09G2S (Russian Equivalent)
- 5. S355J2 vs IS 2062 E350C (Indian Standard)
- 6. Why Understanding “S355J2 Equivalent” Matters in Procurement?
- 7. LONGMA In-House Laboratory: Stronger Guarantees for S355J2 Products
- 8. Why Choose LONGMA for S355J2 Steel Pipe & Plate Supply?
In global steel procurement and engineering projects, “S355J2 Equivalent” is one of the most frequently searched technical keywords.
Many users also search specifically for: s355j2 equivalent astm、s355j2 us equivalent、s355j2 equivalent indian standard、s355j2 steel equivalent — often because cross-standard material comparison directly affects project safety, procurement compliance, and cost.
This article organizes all mainstream equivalents of S355J2 under ASTM, ASME, AISI, EN, GOST, and Indian Standards, and provides detailed comparison tables so buyers can quickly confirm whether S355J2 meets their engineering requirements.
What Is S355J2 (EN 10025-2)?
S355J2 is a non-alloy high-strength structural steel under EN 10025-2, commonly used in:
- pressure piping
- engineering structures
- machinery manufacturing
- welded components
- offshore and heavy-duty structures
Its “J2” designation means the material must meet -20°C impact energy requirements (≥27J).
Typical advantages include:
- excellent weldability
- high strength
- stable low-temperature toughness
- cost-effectiveness for large-scale projects
S355J2 Equivalent Overview Table（EN–ASTM–ASME–AISI–GOST–IS）
The table below summarizes all internationally recognized equivalents of S355J2 steel equivalent.
All data comes from official standards.
| Standard System | Equivalent Grade | Notes / Comparison Basis |
| EN | S355J2 | Baseline grade |
| ASTM | ASTM A572 Grade 50 | Most recognized s355j2 equivalent astm |
| ASME | SA572 Grade 50 | ASME version of A572-50 |
| AISI | AISI 1024 / 1025（partial overlap） | Not fully equivalent; for reference only |
| GOST (Russia) | 09G2S (09Г2С) | Mechanical properties highly similar |
| Indian Standard (IS) | IS 2062 E350C | Closest s355j2 equivalent Indian standard |
| US Standard | ASTM A572 Grade 50 | Widely considered the s355j2 us equivalent |
S355J2 vs ASTM A572 Grade 50 (Most Recognized Equivalent)
1. Chemical Composition Comparison
| Element | S355J2 | ASTM A572 Gr.50 |
| C | ≤0.20% | ≤0.23% |
| Mn | 0.5–1.6% | ≤1.35% |
| Si | ≤0.55% | ≤0.40% |
| P | ≤0.025% | ≤0.040% |
| S | ≤0.025% | ≤0.050% |
2. Mechanical Properties Comparison
| Property | S355J2 | A572 Gr.50 |
| Yield Strength | ≥355 MPa | ≥345–350 MPa |
| Tensile Strength | 470–630 MPa | 450–620 MPa |
| Impact | 27J @ -20°C | No mandatory -20°C requirement |
Summary：
A572 Gr.50 is the closest ASTM equivalent, but S355J2 has higher impact performance at low temperatures.
S355J2 vs GOST 09G2S (Russian Equivalent)
09G2S is a common high-strength structural steel in Eastern Europe.
| Performance | S355J2 | 09G2S |
| Yield Strength | ≥355 MPa | 345–390 MPa |
| Impact | 27J @ -20°C | 09G2S also designed for low-temp toughness |
| Weldability | Excellent | Excellent |
Conclusion：
09G2S is a highly reliable s355j2 steel equivalent for Russian and CIS projects.
S355J2 vs IS 2062 E350C (Indian Standard)
IS 2062 E350C is the most recognized s355j2 equivalent Indian standard.
| Performance | S355J2 | IS 2062 E350C |
| Yield Strength | ≥355 MPa | ≥350 MPa |
| Impact | 27J @ -20°C | 27J @ 0°C |
| Applications | Structural steel | Structural steel |
Difference:
E350C impact toughness is rated at 0°C, slightly weaker than S355J2 (-20°C).
Why Understanding “S355J2 Equivalent” Matters in Procurement?
Many customers worldwide search for:
- s355j2 equivalent
- s355j2 equivalent astm
- s355j2 us equivalent
- s355j2 equivalent indian standard
- s355j2 steel equivalent
Because cross-standard deviation may bring risk:
1.Project Compliance Risks
If the equivalent grade does not meet low-temperature toughness or welding requirements, structural failure may occur.
2. Supplier Quality Risks
Without authentic mill test certificates (MTC 3.1), many suppliers may deliver:
- lower grade steel
- untempered materials
- materials that do not meet elongation or impact requirements
3.Engineering Performance Risks
Incorrect equivalents may result in:
- cracking during welding
- insufficient pressure resistance
- shortened service life
This is why LONGMA builds credibility through transparent data instead of marketing slogans.
LONGMA In-House Laboratory: Stronger Guarantees for S355J2 Products
As a manufacturer with over 20 years of experience, LONGMA has a complete internal quality system:
1.Chemical Analysis Lab
- Optical emission spectrometer
- Check C, Mn, Si, P, S, etc.
2. Mechanical Testing
- Yield, tensile, elongation testing
- Impact testing down to –40°C
3.Welding Performance Test
Ensures S355J2 meets low-temperature and high-strength welding demands.
4.Non-Destructive Testing (NDT)
- UT ultrasonic testing
- RT X-ray testing
This shows customers real quality, not empty advertisements.
Why Choose LONGMA for S355J2 Steel Pipe & Plate Supply?
✔ 20+ years manufacturing experience
✔ Internal laboratory with complete testing
✔ Fast delivery & stable long-term stock
✔ Free technical support and MTC documentation
We not only supply steel — we help customers reduce procurement risks.
