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GB/T 1299 9CrWMn vs AISI 52100

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

GB/T 1299 9CrWMn (GB/T 1299-2014) and AISI 52100 are both steel grades. Both fall under the Tool & Die Steels category. GB/T 1299 9CrWMn is typically used for used for gauges, reamers, punches, dies, measuring tools, and cold cutting blades., while AISI 52100 is commonly used for anti-friction bearings, ball screws, precision rollers. GB/T 1299 9CrWMn is defined under Guobiao Standards (GB/T), originating from China, while AISI 52100 is defined under AISI, originating from United States.

As per chemical composition, GB/T 1299 9CrWMn vs AISI 52100 is a 67.1% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With GB/T 1299 9CrWMn:
EN ISO 683-17 100Cr6 DIN EN ISO 4957 1.2344 GB/T 1299 4Cr5MoSiV1 EN ISO 4957 1.2316 GOST 5950 3H2W8F GB/T 1299 3Cr2W8V GOST 5950 4H5MFS GOST 5950 4H5MFS1 DIN EN ISO 4957 1.2379 GB/T 1299 4Cr5MoSiV IS 3748 103T3 IS 1570 (Part 6) 103T3
Match Breakdown
CHEMISTRY MATCH
67.1%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property GB/T 1299 9CrWMn AISI 52100
Standard GB/T 1299-2014 AISI
Category Tool & Die Steels Tool & Die Steels
C (%) 0.85-0.95 0.93–1.05
Si (%) 0.10-0.40 0.15–0.35
Mn (%) 0.90-1.20 0.25–0.45
Cr (%) 0.50-0.80 1.35–1.60
W (%) 0.50-0.80 Not specified
P (%) 0.030 max ≤0.025
S (%) 0.030 max ≤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 1299 9CrWMn AISI 52100
Tensile Strength 850-1050 MPa ≥620 MPa (annealed)
Yield Strength 650-850 MPa Not specified
Elongation 8-12% Not specified
Hardness 58-64 HRC Not specified
Hardness HRC Not specified 60–66 (hardened)
Hardness HB Not specified 179–229 (annealed)
Typical Applications
GB/T 1299 9CrWMn
Used for gauges, reamers, punches, dies, measuring tools, and cold cutting blades.
AISI 52100
Anti-friction bearings, ball screws, precision rollers
Key Differences
Can GB/T 1299 9CrWMn Be Substituted With AISI 52100?
GB/T 1299 9CrWMn and AISI 52100 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
GB/T 1299 9CrWMn
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2600–3000 mm (102.36–118.11 in)
AISI 52100
Round Bar → (3 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 3000–3200 mm (118.11–125.98 in)
On M-EX Right Now
GB/T 1299 9CrWMn
2 active listings and RFQs →
AISI 52100
3 active listings and RFQs →
Frequently Asked Questions
What is the difference between GB/T 1299 9CrWMn and AISI 52100?
GB/T 1299 9CrWMn specifies W which is not specified for AISI 52100.
Can GB/T 1299 9CrWMn be substituted with AISI 52100?
GB/T 1299 9CrWMn and AISI 52100 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.