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EN ISO 683-17 100Cr6 vs GB/T 1299 4Cr5MoSiV

Minimal Match — 35% match based on chemical composition and mechanical property overlap.

EN ISO 683-17 100Cr6 (EN ISO 683-17:2014) and GB/T 1299 4Cr5MoSiV (GB/T 1299-2014) are both steel grades. Both fall under the Tool & Die Steels category. EN ISO 683-17 100Cr6 is typically used for rolling element bearings, precision components, cold work tooling, while GB/T 1299 4Cr5MoSiV is commonly used for die casting dies, extrusion tooling. EN ISO 683-17 100Cr6 is defined under European Standard (EN), originating from Europe, while GB/T 1299 4Cr5MoSiV is defined under Guobiao Standards (GB/T), originating from China.

As per chemical composition, EN ISO 683-17 100Cr6 vs GB/T 1299 4Cr5MoSiV is a 63.1% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With EN ISO 683-17 100Cr6:
AISI 52100 EN ISO 4957 1.2316 GOST 5950 4H5MFS DIN EN ISO 4957 1.2379 DIN EN ISO 4957 1.2344 GB/T 1299 4Cr5MoSiV1 GB/T 1299 3Cr2W8V GOST 5950 3H2W8F GOST 5950 4H5MFS1 IS 1570 (Part 6) 133T3 IS 1570 (Part 6) 55T8 IS 1570 (Part 6) 70T3
Match Breakdown
CHEMISTRY MATCH
63.1%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property EN ISO 683-17 100Cr6 GB/T 1299 4Cr5MoSiV
Standard EN ISO 683-17:2014 GB/T 1299-2014
Category Tool & Die Steels Tool & Die Steels
C (%) 0.93–1.05 0.32–0.45
Si (%) 0.15–0.35 0.80–1.20
Mn (%) 0.25–0.45 0.20–0.50
Cr (%) 1.35–1.65 4.75–5.50
S (%) ≤0.025 Not specified
P (%) ≤0.025 Not specified
Mo (%) Not specified 1.10–1.60
V (%) Not specified 0.30–0.60
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 683-17 100Cr6 GB/T 1299 4Cr5MoSiV
Tensile Strength ≥620 MPa (annealed) Not specified
Hardness HRC 60–66 (hardened) Not specified
Hardness HB 179–217 (annealed) Not specified
Hardness HRC (hardened) Not specified 40–54
Hardness HB (annealed) Not specified ≤235
Typical Applications
EN ISO 683-17 100Cr6
Rolling element bearings, precision components, cold work tooling
GB/T 1299 4Cr5MoSiV
Die casting dies, extrusion tooling
Key Differences
Can EN ISO 683-17 100Cr6 Be Substituted With GB/T 1299 4Cr5MoSiV?
EN ISO 683-17 100Cr6 and GB/T 1299 4Cr5MoSiV 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.
Forms & Sizes Available on M-EX
EN ISO 683-17 100Cr6
Round Bar → (18 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 3000–6500 mm (118.11–255.91 in)
GB/T 1299 4Cr5MoSiV
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2500–2700 mm (98.43–106.3 in)
On M-EX Right Now
EN ISO 683-17 100Cr6
18 active listings and RFQs →
GB/T 1299 4Cr5MoSiV
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between EN ISO 683-17 100Cr6 and GB/T 1299 4Cr5MoSiV?
EN ISO 683-17 100Cr6 specifies S, P which are not specified for GB/T 1299 4Cr5MoSiV. GB/T 1299 4Cr5MoSiV specifies Mo, V which are not specified for EN ISO 683-17 100Cr6.
Can EN ISO 683-17 100Cr6 be substituted with GB/T 1299 4Cr5MoSiV?
EN ISO 683-17 100Cr6 and GB/T 1299 4Cr5MoSiV 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.