EN-GJL-350
0.6035Grey cast iron with lamellar graphite and minimum tensile strength 350 MPa. The highest standard strength grade. Fully pearlitic or even bainitic matrix with possible alloying (Cr, Cu, Ni) to achieve high strength. Reduced machinability compared to lower grades. Used for heavy-duty cylinder liners, large diesel engine blocks, high-performance brake discs, press frames, and heavily loaded machine components. Equivalent to DIN GG35 and ASTM A48 Class 50.
Chemical composition comparison (wt%)
Side-by-side: EN-GJL-350 (EN) (typical foundry practice) vs ASTM
| Element | EN-GJL-350 (EN) | ASTM | Overlap |
|---|---|---|---|
| C | 2.5–2.9% | — | — |
| Si | 1–1.4% | — | — |
| Mn | 0.8–1.2% | — | — |
| P | ≤ 0.15% | — | — |
| S | ≤ 0.12% | — | — |
Mechanical properties
As Cast
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | ≥ 350 | MPa |
| Hardness HB | 228–285 | HB |
| Density | ≥ 7.3 | g/cm3 |
| Thermal Conductivity | ≥ 46.5 | W/mK |
| Elastic Modulus | 123–143 | GPa |
Related materials
33CrMoV12-9
1.8522Premium nitriding steel with high chromium content (2.8–3.3%) providing exceptional surface hardness after gas or plasma nitriding (up to 900 HV). Excellent core strength (900–1100 MPa tensile) with good toughness. Used for gears, crankshafts, cylinders, spindles, and precision machine components in aerospace, automotive, and power generation. Also known as 32CDV13 (AFNOR) and AMS 6481.
S235J2W
1.8961Entry-level structural weathering steel with minimum yield strength 235 MPa and impact testing at -20°C (J2 designation). Improved low-temperature toughness compared to S235J0W. Used for outdoor structural applications in colder climates where basic strength with atmospheric corrosion resistance is sufficient.
EN-GJS-500-7
5.3200Ferritic-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.
Not sure which material fits?
🤖 Ask AI Advisor →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.