Knowledge
Steel knowledge
Comparisons, certificates and overviews that cut across the grades. Start with 42CrMo4 vs 34CrNiMo6, S355J2 vs C45 or the 3.1 certificate.
Comparisons
4140 vs 42CrMo4. 42CrMo4 vs 34CrNiMo6. S355J2 vs C45. 16MnCr5 vs 18CrNiMo7-6. 1.2379 vs 1.2363. C45 vs 42CrMo4. 304 vs 316L. P265GH vs P355NH. Most pages are the choice between two grades. 4140 and 42CrMo4 / 1.7225 are closely related and often cross-referenced, but they are not automatically identical specifications.
Guides
How bar is delivered. W.Nr. Certificates in practice. Case hardening vs quenching and tempering. The 3.1 certificate. The overview of how we name grades.
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