EN-GJS-400-15 vs EN-GJS-500-7: 76% composition overlap. Some similarities but notable differences in alloying elements.
EN-GJS-400-15 vs EN-GJS-500-7
Side-by-side chemical composition and mechanical property comparison.
Overview
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-GJS-500-7
5.3200
Ferritic-pearlitic ductile cast iron with minimum tensile strength 500 MPa and minimum elongation 7%. The balanced grade offering significantly higher strength than EN-GJS-400-15 while retaining reasonable ductility. Mixed ferrite-pearlite matrix (typically 40-50% pearlite). Used for crankshafts, connecting rods, suspension components, gear housings, heavy-duty pipe fittings, and medium-stress structural castings. Equivalent to DIN GGG50, JIS FCD500.
| EN-GJS-400-15 | EN-GJS-500-7 | |
|---|---|---|
| Material Number | 5.3106 | 5.3200 |
| Category | Alloy Steel | Alloy Steel |
| Standard | EN 1563 | EN 1563 |
Chemical composition (wt%)
| Element | EN-GJS-400-15 | EN-GJS-500-7 | Overlap |
|---|---|---|---|
| C | 3.2–3.8% | 3.2–3.7% | OK |
| Si | 2.2–2.8% | 2–2.6% | Partial |
| Mn | 0.1–0.3% | 0.2–0.5% | Partial |
| P | ≤ 0.05% | ≤ 0.05% | OK |
Mechanical properties
| Property | EN-GJS-400-15 | EN-GJS-500-7 | Unit |
|---|---|---|---|
| tensile_strength | ≥ 400 | ≥ 500 | MPa |
| yield_strength | ≥ 250 | ≥ 320 | MPa |
| elongation | ≥ 15 | ≥ 7 | % |
Compatibility Assessment
EN-GJS-400-15 and EN-GJS-500-7 share some characteristics (76% overlap) but have notable differences. They may be substitutable in some applications but not all. Verify suitability carefully.
Automated assessment based on composition analysis
Frequently Asked Questions
Is EN-GJS-400-15 the same as EN-GJS-500-7?
EN-GJS-400-15 and EN-GJS-500-7 have a 76% composition overlap. For most purposes, they can be considered similar.
Can I replace EN-GJS-400-15 with EN-GJS-500-7?
In many cases, yes. The compositions overlap significantly (76%). However, always verify mechanical property requirements and heat treatment compatibility for your specific application.
What is the difference between EN-GJS-400-15 and EN-GJS-500-7?
The main differences are in the following elements: Si, Mn. EN-GJS-400-15 is a Alloy Steel grade, while EN-GJS-500-7 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.