P355NL2 vs S500Q: 53% composition overlap. Moderate differences, generally not direct substitutes.
P355NL2 vs S500Q
Side-by-side chemical composition and mechanical property comparison.
Overview
P355NL2
1.1106
Weldable fine-grained non-alloy steel for pressure vessels with minimum yield strength 355 MPa and impact testing at -50°C (NL2 designation). The most stringent low-temperature variant of the P355 series with tightest P and S control. Used for cryogenic storage vessels, LNG tanks, and pressure equipment in extreme cold service. Commonly stocked by European plate distributors.
S500Q
1.8924
Quenched and tempered fine-grained structural steel with minimum yield strength 500 MPa. Q designation indicates impact testing at room temperature. Combines good weldability with significantly higher strength than conventional S355 grades. Used for hydraulic supports, construction machinery, crane components, heavy vehicles, and mining equipment where weight reduction is beneficial.
| P355NL2 | S500Q | |
|---|---|---|
| Material Number | 1.1106 | 1.8924 |
| Category | Carbon Steel | Carbon Steel |
| Standard | EN 10028-3 | EN 10025-6 |
Chemical composition (wt%) — Pro
| Element | P355NL2 | S500Q | Overlap |
|---|---|---|---|
| C | ≤ 0.18% | ≤ 0.2% | OK |
| Si | ≤ 0.5% | ≤ 0.8% | OK |
| Mn | 1.1–1.7% | ≤ 1.7% | OK |
| P | ≤ 0.02% | ≤ 0.025% | OK |
| S | |||
| Cr | |||
| Mo | |||
| Ni | |||
| V | |||
| Nb | |||
| B |
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Sign up free — 3 comparisons/day freeMechanical properties — Pro
| Property | P355NL2 | S500Q | Unit |
|---|---|---|---|
| Tensile Strength | 490–630 | 590–770 | MPa |
| Yield Strength | ≥ 355 | ≥ 500 | MPa |
| Elongation | ≥ 22 | ≥ 17 | % |
| impact_kv | |||
| Density | |||
| Elastic Modulus |
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Sign up free — 3 comparisons/day freeCompatibility Assessment
P355NL2 and S500Q have moderate differences (53% overlap). They are generally not direct substitutes. Consider the specific requirements of your application.
Automated assessment based on composition analysis
Frequently Asked Questions
Is P355NL2 the same as S500Q?
P355NL2 and S500Q have a 53% composition overlap. They are generally not directly interchangeable.
Can I replace P355NL2 with S500Q?
Generally not recommended. The compositions differ significantly (53% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between P355NL2 and S500Q?
The main differences are in the following elements: overall alloying content. P355NL2 is a Carbon Steel grade, while S500Q is a Carbon Steel grade.
View full data for each material:
Data provided for reference only. Always verify against the applicable specification for critical applications.
All data is for reference only. Equivalents indicate similarity, not identity. Always verify against the applicable specification for safety-critical applications. materialref.com accepts no liability for decisions based on this data.