Minimal Match — 35% match
based on chemical composition and mechanical property overlap.
EN ISO 4957 X210Cr12 (EN ISO 4957:2018) and GB/T 1299 4Cr5MoSiV1 (GB/T 1299-2014) are both steel grades.
Both fall under the Tool & Die Steels category.
EN ISO 4957 X210Cr12 is typically used for blanking dies, thread rolling dies, gauges, while GB/T 1299 4Cr5MoSiV1 is commonly used for die casting dies, forging dies, extrusion tools.
EN ISO 4957 X210Cr12 is defined under European Standard (EN), originating from Europe, while GB/T 1299 4Cr5MoSiV1 is defined under Guobiao Standards (GB/T), originating from China.
As per chemical composition, EN ISO 4957 X210Cr12 vs GB/T 1299 4Cr5MoSiV1 is a 59.5% match.
As per mechanical properties, the match is 0%.
Combined, this makes them a minimal match overall at 35%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
EN ISO 4957 X210Cr12
GB/T 1299 4Cr5MoSiV1
Hardness HRC (hardened)
58–64
42–54
Hardness HB (annealed)
≤255
≤235
Typical Applications
EN ISO 4957 X210Cr12
Blanking dies, thread rolling dies, gauges
GB/T 1299 4Cr5MoSiV1
Die casting dies, forging dies, extrusion tools
Key Differences
GB/T 1299 4Cr5MoSiV1 specifies Mo, V which are not specified for EN ISO 4957 X210Cr12.
Can EN ISO 4957 X210Cr12 Be Substituted With GB/T 1299 4Cr5MoSiV1?
EN ISO 4957 X210Cr12 and GB/T 1299 4Cr5MoSiV1 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.
What is the difference between EN ISO 4957 X210Cr12 and GB/T 1299 4Cr5MoSiV1?
GB/T 1299 4Cr5MoSiV1 specifies Mo, V which are not specified for EN ISO 4957 X210Cr12.
Can EN ISO 4957 X210Cr12 be substituted with GB/T 1299 4Cr5MoSiV1?
EN ISO 4957 X210Cr12 and GB/T 1299 4Cr5MoSiV1 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.