EN-GJL-250 vs EN-GJS-400-15: 12% composition overlap. Significantly different materials serving different application areas.
EN-GJL-250 vs EN-GJS-400-15
Side-by-side chemical composition and mechanical property comparison.
Overview
EN-GJL-250
0.6025
Grey cast iron with lamellar graphite and minimum tensile strength 250 MPa. The most widely used grey cast iron grade worldwide. Predominantly pearlitic matrix providing an excellent balance of strength, machinability, damping capacity, and castability. Used for engine blocks, cylinder heads, machine tool beds, lathe beds, flywheels, brake discs, hydraulic valve bodies, and general medium-duty structural castings. Equivalent to DIN GG25 and ASTM A48 Class 35.
EN-GJS-400-15
5.3106
Ferritic ductile (spheroidal graphite) cast iron with minimum tensile strength 400 MPa and minimum elongation 15%. The most widely used ductile iron grade worldwide. Spheroidal graphite morphology achieved by magnesium treatment provides far superior ductility and impact resistance compared to grey iron. Used for water and gas pipes, valve bodies, pump housings, automotive components, gearbox housings, and general engineering castings. Equivalent to DIN GGG40, ASTM A536 60-40-18, JIS FCD400.
| EN-GJL-250 | EN-GJS-400-15 | |
|---|---|---|
| Material Number | 0.6025 | 5.3106 |
| Category | Alloy Steel | Alloy Steel |
| Standard | EN 1561 | EN 1563 |
Chemical composition (wt%)
| Element | EN-GJL-250 | EN-GJS-400-15 | Overlap |
|---|---|---|---|
| C | 2.8–3.3% | 3.2–3.8% | Partial |
| Si | 1.2–1.7% | 2.2–2.8% | No overlap |
| Mn | 0.8–1.2% | 0.1–0.3% | No overlap |
| P | ≤ 0.15% | ≤ 0.05% | OK |
Mechanical properties
| Property | EN-GJL-250 | EN-GJS-400-15 | Unit |
|---|---|---|---|
| tensile_strength | ≥ 250 | ≥ 400 | MPa |
| hardness_hb | 180–240 | — | HB |
| density | ≥ 7.2 | ≥ 7.1 | g/cm3 |
Compatibility Assessment
EN-GJL-250 and EN-GJS-400-15 have significantly different compositions (12% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is EN-GJL-250 the same as EN-GJS-400-15?
EN-GJL-250 and EN-GJS-400-15 have a 12% composition overlap. They are generally not directly interchangeable.
Can I replace EN-GJL-250 with EN-GJS-400-15?
Generally not recommended. The compositions differ significantly (12% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between EN-GJL-250 and EN-GJS-400-15?
The main differences are in the following elements: C, Si, Mn. EN-GJL-250 is a Alloy Steel grade, while EN-GJS-400-15 is a Alloy 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.