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GB/T 1299 9CrWMn vs KS D 3753 STS3

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

GB/T 1299 9CrWMn (GB/T 1299-2014) and KS D 3753 STS3 (KS D 3753:2023) are both steel grades. Both fall under the Tool & Die Steels category. GB/T 1299 9CrWMn is typically used for used for gauges, reamers, punches, dies, measuring tools, and cold cutting blades., while KS D 3753 STS3 is commonly used for used in chisels, punches, dies, shear tools, gauges, and hand tools.. GB/T 1299 9CrWMn is defined under Guobiao Standards (GB/T), originating from China, while KS D 3753 STS3 is defined under Korean Industrial Standards (KS), originating from South Korea.

As per chemical composition, GB/T 1299 9CrWMn vs KS D 3753 STS3 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 GB/T 1299 9CrWMn:
EN ISO 683-17 100Cr6 DIN EN ISO 4957 1.2344 GB/T 1299 4Cr5MoSiV1 EN ISO 4957 1.2316 GOST 5950 3H2W8F GB/T 1299 3Cr2W8V AISI 52100 GOST 5950 4H5MFS GOST 5950 4H5MFS1 DIN EN ISO 4957 1.2379 GB/T 1299 4Cr5MoSiV
Other Tool & Die Steels Grades to Compare With GB/T 1299 9CrWMn:
IS 3748 103T3
Match Breakdown
CHEMISTRY MATCH
80.9%
MECHANICAL MATCH
23.3%
OVERALL
61.7%
Specifications
Property GB/T 1299 9CrWMn KS D 3753 STS3
Standard GB/T 1299-2014 KS D 3753:2023
Category Tool & Die Steels Tool & Die Steels
C (%) 0.85-0.95 0.80-0.90
Si (%) 0.10-0.40 0.15-0.35
Mn (%) 0.90-1.20 0.30-0.60
Cr (%) 0.50-0.80 0.50-1.00
W (%) 0.50-0.80 0.50-1.00
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 GB/T 1299 9CrWMn KS D 3753 STS3
Tensile Strength 850-1050 MPa 880-1100 MPa
Yield Strength 650-850 MPa 700 MPa min
Elongation 8-12% 10% min
Hardness 58-64 HRC 56-60 HRC
Typical Applications
GB/T 1299 9CrWMn
Used for gauges, reamers, punches, dies, measuring tools, and cold cutting blades.
KS D 3753 STS3
Used in chisels, punches, dies, shear tools, gauges, and hand tools.
Can GB/T 1299 9CrWMn Be Substituted With KS D 3753 STS3?
GB/T 1299 9CrWMn and KS D 3753 STS3 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
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)
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)
On M-EX Right Now
GB/T 1299 9CrWMn
2 active listings and RFQs →
KS D 3753 STS3
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between GB/T 1299 9CrWMn and KS D 3753 STS3?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can GB/T 1299 9CrWMn be substituted with KS D 3753 STS3?
GB/T 1299 9CrWMn and KS D 3753 STS3 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.