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AISI D2 KNL vs AISI 52100

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

AISI D2 KNL (ASTM A681) and AISI 52100 are both steel grades. Both fall under the Tool & Die Steels category. AISI D2 KNL is typically used for blanking dies, forming dies, thread rolling dies, punches, shear blades, gauges, broaches, drawing dies, while AISI 52100 is commonly used for anti-friction bearings, ball screws, precision rollers. AISI D2 KNL is defined under AISI, originating from United States, while AISI 52100 is defined under AISI, originating from United States.

As per chemical composition, AISI D2 KNL vs AISI 52100 is a 64.9% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With AISI D2 KNL:
DIN EN ISO 4957 1.2379 EN ISO 683-17 100Cr6 GB/T 1299 3Cr2W8V DIN EN ISO 4957 1.2344 EN ISO 4957 1.2316 GB/T 1299 4Cr5MoSiV GB/T 1299 4Cr5MoSiV1 GOST 5950 4H5MFS GOST 5950 3H2W8F GOST 5950 4H5MFS1 IS 1570 (Part 6) 103T3
Other Tool & Die Steels Grades to Compare With AISI D2 KNL:
IS 3748 103T3
Match Breakdown
CHEMISTRY MATCH
64.9%
MECHANICAL MATCH
0%
OVERALL
35%
Specifications
Property AISI D2 KNL AISI 52100
Standard ASTM A681 AISI
Category Tool & Die Steels Tool & Die Steels
C (%) 1.40–1.60 0.93–1.05
Mn (%) ≤0.60 0.25–0.45
Si (%) ≤0.40 0.15–0.35
Cr (%) 11.00–13.00 1.35–1.60
Mo (%) 0.70–1.20 Not specified
V (%) ≤1.00 Not specified
S (%) ≤0.030 ≤0.025
P (%) ≤0.030 ≤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 AISI D2 KNL AISI 52100
Hardness (annealed) ≤255 HB Not specified
Hardness (hardened) 58–62 HRC Not specified
Compressive Strength 2600 MPa Not specified
Tensile Strength Not specified ≥620 MPa (annealed)
Hardness HRC Not specified 60–66 (hardened)
Hardness HB Not specified 179–229 (annealed)
Typical Applications
AISI D2 KNL
Blanking dies, forming dies, thread rolling dies, punches, shear blades, gauges, broaches, drawing dies
AISI 52100
Anti-friction bearings, ball screws, precision rollers
Key Differences
Can AISI D2 KNL Be Substituted With AISI 52100?
AISI D2 KNL 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
AISI D2 KNL
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2500–3600 mm (98.43–141.73 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
AISI D2 KNL
2 active listings and RFQs →
AISI 52100
3 active listings and RFQs →
Frequently Asked Questions
What is the difference between AISI D2 KNL and AISI 52100?
AISI D2 KNL specifies Mo, V which are not specified for AISI 52100.
Can AISI D2 KNL be substituted with AISI 52100?
AISI D2 KNL 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.