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GB/T 18254 GCr15 vs EN ISO 683-17 100Cr6

Strong Match — 98.2% match based on chemical composition and mechanical property overlap.

GB/T 18254 GCr15 (GB/T 18254-2016) and EN ISO 683-17 100Cr6 (EN ISO 683-17:2014) are both steel grades. Both fall under the Tool & Die Steels category. GB/T 18254 GCr15 is typically used for ball bearings, roller bearings, bearing races, while EN ISO 683-17 100Cr6 is commonly used for rolling element bearings, precision components, cold work tooling. GB/T 18254 GCr15 is defined under Guobiao Standards (GB/T), originating from China, while EN ISO 683-17 100Cr6 is defined under European Standard (EN), originating from Europe.

As per chemical composition, GB/T 18254 GCr15 vs EN ISO 683-17 100Cr6 is a 97.3% match. As per mechanical properties, the match is 100%. Combined, this makes them a strong match overall at 98.2%.

Frequently Compared With GB/T 18254 GCr15:
AISI 52100 GOST 5950 4H5MFS1 DIN EN ISO 4957 1.2379 GB/T 1299 4Cr5MoSiV EN ISO 4957 1.2316 GOST 5950 4H5MFS DIN EN ISO 4957 1.2344 GOST 5950 3H2W8F GB/T 1299 3Cr2W8V GB/T 1299 4Cr5MoSiV1
Other Tool & Die Steels Grades to Compare With GB/T 18254 GCr15:
IS 3748 103T3 IS 1570 (Part 6) 103T3
Match Breakdown
CHEMISTRY MATCH
97.3%
MECHANICAL MATCH
100%
OVERALL
98.2%
Specifications
Property GB/T 18254 GCr15 EN ISO 683-17 100Cr6
Standard GB/T 18254-2016 EN ISO 683-17:2014
Category Tool & Die Steels Tool & Die Steels
C (%) 0.95–1.05 0.93–1.05
Si (%) 0.15–0.35 0.15–0.35
Mn (%) 0.25–0.45 0.25–0.45
Cr (%) 1.40–1.65 1.35–1.65
S (%) ≤0.020 ≤0.025
P (%) ≤0.025 ≤0.025
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property GB/T 18254 GCr15 EN ISO 683-17 100Cr6
Hardness HRC (hardened) 60–66 Not specified
Hardness HB (annealed) ≤179–207 Not specified
Tensile Strength Not specified ≥620 MPa (annealed)
Hardness HRC Not specified 60–66 (hardened)
Hardness HB Not specified 179–217 (annealed)
Typical Applications
GB/T 18254 GCr15
Ball bearings, roller bearings, bearing races
EN ISO 683-17 100Cr6
Rolling element bearings, precision components, cold work tooling
Can GB/T 18254 GCr15 Be Substituted With EN ISO 683-17 100Cr6?
GB/T 18254 GCr15 and EN ISO 683-17 100Cr6 overlap closely enough on chemistry and mechanical properties that EN ISO 683-17 100Cr6 is often considered as a substitute for GB/T 18254 GCr15 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
Forms & Sizes Available on M-EX
GB/T 18254 GCr15
Round Bar → (23 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2700–6600 mm (106.3–259.84 in)
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)
On M-EX Right Now
GB/T 18254 GCr15
23 active listings and RFQs →
EN ISO 683-17 100Cr6
18 active listings and RFQs →
Frequently Asked Questions
What is the difference between GB/T 18254 GCr15 and EN ISO 683-17 100Cr6?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can GB/T 18254 GCr15 be substituted with EN ISO 683-17 100Cr6?
GB/T 18254 GCr15 and EN ISO 683-17 100Cr6 overlap closely enough on chemistry and mechanical properties that EN ISO 683-17 100Cr6 is often considered as a substitute for GB/T 18254 GCr15 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.