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JIS G4804 SUM23L vs EN 10087 9SMn28

Strong Match — 89.3% match based on chemical composition and mechanical property overlap.

JIS G4804 SUM23L (JIS G 4804:2021) and EN 10087 9SMn28 (EN 10087:1998) are both steel grades. Both fall under the Free Machining Steel category. JIS G4804 SUM23L is typically used for small precision turned parts, while EN 10087 9SMn28 is commonly used for screw machine parts, general automatic turning. JIS G4804 SUM23L is defined under Japanese Industrial Standards (JIS), originating from Japan, while EN 10087 9SMn28 is defined under European Standard (EN), originating from Europe.

As per chemical composition, JIS G4804 SUM23L vs EN 10087 9SMn28 is a 83.9% match. As per mechanical properties, the match is 100%. Combined, this makes them a strong match overall at 89.3%.

Frequently Compared With JIS G4804 SUM23L:
IS 4432 10C8S10 SAE J403 1117 SAE J403 1118 SAE J403 1126 SAE J403 1126 SAE J403 1132 IS 1570 (Part 3) 10C8S10 SAE J403 1117 SAE J403 1117 SAE J403 1118 SAE J403 1118 SAE J403 1126
Match Breakdown
CHEMISTRY MATCH
83.9%
MECHANICAL MATCH
100%
OVERALL
89.3%
Specifications
Property JIS G4804 SUM23L EN 10087 9SMn28
Standard JIS G 4804:2021 EN 10087:1998
Category Free Machining Steel Free Machining Steel
C (%) ≤0.09 ≤0.14
Mn (%) 0.75–1.05 0.90–1.30
P (%) 0.04–0.09 ≤0.110
S (%) 0.26–0.35 0.24–0.32
Pb (%) 0.10–0.35 Not specified
Si (%) Not specified ≤0.05
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 SUM23L EN 10087 9SMn28
Tensile Strength 380–490 MPa 380–570 MPa
Elongation Not specified ≥7%
Typical Applications
JIS G4804 SUM23L
Small precision turned parts
EN 10087 9SMn28
Screw machine parts, general automatic turning
Key Differences
Can JIS G4804 SUM23L Be Substituted With EN 10087 9SMn28?
JIS G4804 SUM23L and EN 10087 9SMn28 overlap closely enough on chemistry and mechanical properties that EN 10087 9SMn28 is often considered as a substitute for JIS G4804 SUM23L 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 SUM23L
Hex Bar → (2 listings)
Across Flats: 25–25 mm (0.98–0.98 in)
Length: 2900–3200 mm (114.17–125.98 in)
EN 10087 9SMn28
Hex Bar → (2 listings)
Across Flats: 25–25 mm (0.98–0.98 in)
Length: 3500–5300 mm (137.8–208.66 in)
On M-EX Right Now
JIS G4804 SUM23L
2 active listings and RFQs →
EN 10087 9SMn28
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between JIS G4804 SUM23L and EN 10087 9SMn28?
JIS G4804 SUM23L specifies Pb which is not specified for EN 10087 9SMn28. EN 10087 9SMn28 specifies Si which is not specified for JIS G4804 SUM23L.
Can JIS G4804 SUM23L be substituted with EN 10087 9SMn28?
JIS G4804 SUM23L and EN 10087 9SMn28 overlap closely enough on chemistry and mechanical properties that EN 10087 9SMn28 is often considered as a substitute for JIS G4804 SUM23L in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.