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KS D 3753 STS3 vs IS 1570 (Part 6) 103T3

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

KS D 3753 STS3 (KS D 3753:2023) and IS 1570 (Part 6) 103T3 (IS 1570 (Part 6):1996) are both steel grades. Both fall under the Tool & Die Steels category. KS D 3753 STS3 is defined under Korean Industrial Standards (KS), originating from South Korea, while IS 1570 (Part 6) 103T3 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, KS D 3753 STS3 vs IS 1570 (Part 6) 103T3 is a 59.6% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a minimal match overall at 35%.

Frequently Compared With KS D 3753 STS3:
DIN EN ISO 4957 1.2344 GB/T 1299 4Cr5MoSiV1 EN ISO 683-17 100Cr6 GB/T 1299 4Cr5MoSiV 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
Other Tool & Die Steels Grades to Compare With KS D 3753 STS3:
IS 3748 103T3
Match Breakdown
CHEMISTRY MATCH
59.6%
MECHANICAL MATCH
No shared data
OVERALL
35%
Specifications
Property KS D 3753 STS3 IS 1570 (Part 6) 103T3
Standard KS D 3753:2023 IS 1570 (Part 6):1996
Category Tool & Die Steels Tool & Die Steels
C (%) 0.80-0.90 0.95-1.10
Si (%) 0.15-0.35 0.10-0.30
Mn (%) 0.30-0.60 <=0.40
Cr (%) 0.50-1.00 <=0.20
W (%) 0.50-1.00 Not specified
P (%) 0.030 max <=0.035
S (%) 0.030 max <=0.035
Cu (%) Not specified <=0.25
Ni (%) Not specified <=0.25
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 IS 1570 (Part 6) 103T3
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
Typical Applications
KS D 3753 STS3
Used in chisels, punches, dies, shear tools, gauges, and hand tools.
IS 1570 (Part 6) 103T3
Not documented
Key Differences
Can KS D 3753 STS3 Be Substituted With IS 1570 (Part 6) 103T3?
KS D 3753 STS3 and IS 1570 (Part 6) 103T3 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)
IS 1570 (Part 6) 103T3
No active listings currently.
On M-EX Right Now
KS D 3753 STS3
2 active listings and RFQs →
IS 1570 (Part 6) 103T3
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Frequently Asked Questions
What is the difference between KS D 3753 STS3 and IS 1570 (Part 6) 103T3?
KS D 3753 STS3 specifies W which is not specified for IS 1570 (Part 6) 103T3. IS 1570 (Part 6) 103T3 specifies Cu, Ni which are not specified for KS D 3753 STS3.
Can KS D 3753 STS3 be substituted with IS 1570 (Part 6) 103T3?
KS D 3753 STS3 and IS 1570 (Part 6) 103T3 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.