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KS D 3753 STS3 vs GB/T 1299 9CrWMn

Related Material — 61.7% match based on chemical composition and mechanical property overlap.

KS D 3753 STS3 (KS D 3753:2023) and GB/T 1299 9CrWMn (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 9CrWMn is commonly used for used for gauges, reamers, punches, dies, measuring tools, and cold cutting blades.. KS D 3753 STS3 is defined under Korean Industrial Standards (KS), originating from South Korea, while GB/T 1299 9CrWMn is defined under Guobiao Standards (GB/T), originating from China.

As per chemical composition, KS D 3753 STS3 vs GB/T 1299 9CrWMn is a 80.9% match. As per mechanical properties, the match is 23.3%. Combined, this makes them a related material overall at 61.7%.

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 IS 1570 (Part 6) 103T3
Match Breakdown
CHEMISTRY MATCH
80.9%
MECHANICAL MATCH
23.3%
OVERALL
61.7%
Specifications
Property KS D 3753 STS3 GB/T 1299 9CrWMn
Standard KS D 3753:2023 GB/T 1299-2014
Category Tool & Die Steels Tool & Die Steels
C (%) 0.80-0.90 0.85-0.95
Si (%) 0.15-0.35 0.10-0.40
Mn (%) 0.30-0.60 0.90-1.20
Cr (%) 0.50-1.00 0.50-0.80
W (%) 0.50-1.00 0.50-0.80
P (%) 0.030 max 0.030 max
S (%) 0.030 max 0.030 max
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 9CrWMn
Tensile Strength 880-1100 MPa 850-1050 MPa
Yield Strength 700 MPa min 650-850 MPa
Elongation 10% min 8-12%
Hardness 56-60 HRC 58-64 HRC
Typical Applications
KS D 3753 STS3
Used in chisels, punches, dies, shear tools, gauges, and hand tools.
GB/T 1299 9CrWMn
Used for gauges, reamers, punches, dies, measuring tools, and cold cutting blades.
Can KS D 3753 STS3 Be Substituted With GB/T 1299 9CrWMn?
KS D 3753 STS3 and GB/T 1299 9CrWMn 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 9CrWMn
Round Bar → (2 listings)
Diameter: 80–80 mm (3.15–3.15 in)
Length: 2600–3000 mm (102.36–118.11 in)
On M-EX Right Now
KS D 3753 STS3
2 active listings and RFQs →
GB/T 1299 9CrWMn
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between KS D 3753 STS3 and GB/T 1299 9CrWMn?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can KS D 3753 STS3 be substituted with GB/T 1299 9CrWMn?
KS D 3753 STS3 and GB/T 1299 9CrWMn 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.