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AISI D2 KNL vs DIN EN ISO 4957 1.2344

Minimal Match — 39.6% match based on chemical composition and mechanical property overlap.

AISI D2 KNL (ASTM A681) and DIN EN ISO 4957 1.2344 (DIN EN ISO 4957:2018-11) 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 DIN EN ISO 4957 1.2344 is commonly used for die casting dies, extrusion dies, forging dies, hot shear blades, mandrels, pressure die casting tooling. AISI D2 KNL is defined under AISI, originating from United States, while DIN EN ISO 4957 1.2344 is defined under European Standard (EN), originating from Europe.

As per chemical composition, AISI D2 KNL vs DIN EN ISO 4957 1.2344 is a 59.5% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 39.6%.

Frequently Compared With AISI D2 KNL:
DIN EN ISO 4957 1.2379 EN ISO 683-17 100Cr6 GB/T 1299 3Cr2W8V EN ISO 4957 1.2316 GB/T 1299 4Cr5MoSiV GB/T 1299 4Cr5MoSiV1 GOST 5950 4H5MFS GOST 5950 3H2W8F GOST 5950 4H5MFS1 AISI 52100 IS 1570 (Part 6) 103T3 IS 3748 103T3
Match Breakdown
CHEMISTRY MATCH
59.5%
MECHANICAL MATCH
0%
OVERALL
39.6%
Specifications
Property AISI D2 KNL DIN EN ISO 4957 1.2344
Standard ASTM A681 DIN EN ISO 4957:2018-11
Category Tool & Die Steels Tool & Die Steels
C (%) 1.40–1.60 0.37–0.43
Mn (%) ≤0.60 0.30–0.50
Si (%) ≤0.40 0.90–1.20
Cr (%) 11.00–13.00 4.80–5.50
Mo (%) 0.70–1.20 1.20–1.50
V (%) ≤1.00 0.90–1.10
S (%) ≤0.030 ≤0.030
P (%) ≤0.030 ≤0.030
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 DIN EN ISO 4957 1.2344
Hardness (annealed) ≤255 HB ≤229 HB
Hardness (hardened) 58–62 HRC 44–52 HRC
Compressive Strength 2600 MPa Not specified
Tensile Strength Not specified 1200–1600 MPa
Elongation Not specified ≥8%
Typical Applications
AISI D2 KNL
Blanking dies, forming dies, thread rolling dies, punches, shear blades, gauges, broaches, drawing dies
DIN EN ISO 4957 1.2344
Die casting dies, extrusion dies, forging dies, hot shear blades, mandrels, pressure die casting tooling
Can AISI D2 KNL Be Substituted With DIN EN ISO 4957 1.2344?
AISI D2 KNL and DIN EN ISO 4957 1.2344 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)
DIN EN ISO 4957 1.2344
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 3000–3700 mm (118.11–145.67 in)
On M-EX Right Now
AISI D2 KNL
2 active listings and RFQs →
DIN EN ISO 4957 1.2344
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between AISI D2 KNL and DIN EN ISO 4957 1.2344?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can AISI D2 KNL be substituted with DIN EN ISO 4957 1.2344?
AISI D2 KNL and DIN EN ISO 4957 1.2344 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.