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JIS G4804 SUM25 vs JIS G4804 SUM24L

Strong Match — 89.4% match based on chemical composition and mechanical property overlap.

JIS G4804 SUM25 (JIS G 4804:2021) and JIS G4804 SUM24L (JIS G 4804:2021) are both steel grades. Both fall under the Free Machining Steel category. JIS G4804 SUM25 is typically used for high volume automatic machining, precision parts, while JIS G4804 SUM24L is commonly used for precision components, automatic lathe work. JIS G4804 SUM25 is defined under Japanese Industrial Standards (JIS), originating from Japan, while JIS G4804 SUM24L is defined under Japanese Industrial Standards (JIS), originating from Japan.

As per chemical composition, JIS G4804 SUM25 vs JIS G4804 SUM24L is a 84.1% match. As per mechanical properties, the match is 100%. Combined, this makes them a strong match overall at 89.4%.

Frequently Compared With JIS G4804 SUM25:
SAE J403 1126 SAE J403 1141 SAE J403 1117 SAE J403 1126 SAE J403 1117 SAE J403 1117 SAE J403 1126 IS 4432 10C8S10 SAE J403 1118 SAE J403 1132 SAE J403 1118 SAE J403 1118
Match Breakdown
CHEMISTRY MATCH
84.1%
MECHANICAL MATCH
100%
OVERALL
89.4%
Specifications
Property JIS G4804 SUM25 JIS G4804 SUM24L
Standard JIS G 4804:2021 JIS G 4804:2021
Category Free Machining Steel Free Machining Steel
C (%) ≤0.15 ≤0.15
Mn (%) 0.90–1.40 0.85–1.15
P (%) 0.07–0.12 0.04–0.09
S (%) 0.30–0.40 0.26–0.35
Pb (%) Not specified 0.10–0.35
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property JIS G4804 SUM25 JIS G4804 SUM24L
Tensile Strength 390–510 MPa 390–510 MPa
Hardness ≤163 HB ≤163 HB
Typical Applications
JIS G4804 SUM25
High volume automatic machining, precision parts
JIS G4804 SUM24L
Precision components, automatic lathe work
Key Differences
Can JIS G4804 SUM25 Be Substituted With JIS G4804 SUM24L?
JIS G4804 SUM25 and JIS G4804 SUM24L overlap closely enough on chemistry and mechanical properties that JIS G4804 SUM24L is often considered as a substitute for JIS G4804 SUM25 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
Forms & Sizes Available on M-EX
JIS G4804 SUM25
Hex Bar → (2 listings)
Across Flats: 25–25 mm (0.98–0.98 in)
Length: 3500–3500 mm (137.8–137.8 in)
JIS G4804 SUM24L
Hex Bar → (2 listings)
Across Flats: 25–25 mm (0.98–0.98 in)
Length: 2500–3500 mm (98.43–137.8 in)
On M-EX Right Now
JIS G4804 SUM25
2 active listings and RFQs →
JIS G4804 SUM24L
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between JIS G4804 SUM25 and JIS G4804 SUM24L?
JIS G4804 SUM24L specifies Pb which is not specified for JIS G4804 SUM25.
Can JIS G4804 SUM25 be substituted with JIS G4804 SUM24L?
JIS G4804 SUM25 and JIS G4804 SUM24L overlap closely enough on chemistry and mechanical properties that JIS G4804 SUM24L is often considered as a substitute for JIS G4804 SUM25 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.