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KS D 3753 STS3 vs GB/T 1299 4Cr5MoSiV

Minimal Match — 34.6% match based on chemical composition and mechanical property overlap.

KS D 3753 STS3 (KS D 3753:2023) and GB/T 1299 4Cr5MoSiV (GB/T 1299-2014) are both steel grades. Both fall under the Tool & Die Steels category. KS D 3753 STS3 is typically used for used in chisels, punches, dies, shear tools, gauges, and hand tools., while GB/T 1299 4Cr5MoSiV is commonly used for die casting dies, extrusion tooling. KS D 3753 STS3 is defined under Korean Industrial Standards (KS), originating from South Korea, while GB/T 1299 4Cr5MoSiV is defined under Guobiao Standards (GB/T), originating from China.

As per chemical composition, KS D 3753 STS3 vs GB/T 1299 4Cr5MoSiV is a 51.9% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 34.6%.

Frequently Compared With KS D 3753 STS3:
DIN EN ISO 4957 1.2344 GB/T 1299 4Cr5MoSiV1 EN ISO 683-17 100Cr6 AISI 52100 DIN EN ISO 4957 1.2379 GOST 5950 4H5MFS1 EN ISO 4957 1.2316 GB/T 1299 3Cr2W8V GOST 5950 3H2W8F GOST 5950 4H5MFS IS 1570 (Part 6) 103T3 IS 3748 103T3
Match Breakdown
CHEMISTRY MATCH
51.9%
MECHANICAL MATCH
0%
OVERALL
34.6%
Specifications
Property KS D 3753 STS3 GB/T 1299 4Cr5MoSiV
Standard KS D 3753:2023 GB/T 1299-2014
Category Tool & Die Steels Tool & Die Steels
C (%) 0.80-0.90 0.32–0.45
Si (%) 0.15-0.35 0.80–1.20
Mn (%) 0.30-0.60 0.20–0.50
Cr (%) 0.50-1.00 4.75–5.50
W (%) 0.50-1.00 Not specified
P (%) 0.030 max Not specified
S (%) 0.030 max 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 KS D 3753 STS3 GB/T 1299 4Cr5MoSiV
Tensile Strength 880-1100 MPa Not specified
Yield Strength 700 MPa min Not specified
Elongation 10% min Not specified
Hardness 56-60 HRC Not specified
Hardness HRC (hardened) Not specified 40–54
Hardness HB (annealed) Not specified ≤235
Typical Applications
KS D 3753 STS3
Used in chisels, punches, dies, shear tools, gauges, and hand tools.
GB/T 1299 4Cr5MoSiV
Die casting dies, extrusion tooling
Key Differences
Can KS D 3753 STS3 Be Substituted With GB/T 1299 4Cr5MoSiV?
KS D 3753 STS3 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
KS D 3753 STS3
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2500–2600 mm (98.43–102.36 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
KS D 3753 STS3
2 active listings and RFQs →
GB/T 1299 4Cr5MoSiV
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between KS D 3753 STS3 and GB/T 1299 4Cr5MoSiV?
KS D 3753 STS3 specifies W, P, S which are not specified for GB/T 1299 4Cr5MoSiV. GB/T 1299 4Cr5MoSiV specifies Mo, V which are not specified for KS D 3753 STS3.
Can KS D 3753 STS3 be substituted with GB/T 1299 4Cr5MoSiV?
KS D 3753 STS3 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.