Strong Match — 90.2% match
based on chemical composition and mechanical property overlap.
EN 10087 9SMnPb28 (EN 10087:1998) and JIS G4804 SUM22 (JIS G 4804:2021) are both steel grades.
Both fall under the Free Machining Steel category.
EN 10087 9SMnPb28 is typically used for complex precision turned parts, while JIS G4804 SUM22 is commonly used for screw machine parts, bolts, studs, pins.
EN 10087 9SMnPb28 is defined under European Standard (EN), originating from Europe, while JIS G4804 SUM22 is defined under Japanese Industrial Standards (JIS), originating from Japan.
As per chemical composition, EN 10087 9SMnPb28 vs JIS G4804 SUM22 is a 85.4% match.
As per mechanical properties, the match is 100%.
Combined, this makes them a strong match overall at 90.2%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
EN 10087 9SMnPb28
JIS G4804 SUM22
Tensile Strength
380–570 MPa
380–490 MPa
Elongation
≥5%
Not specified
Hardness
Not specified
≤149 HB
Typical Applications
EN 10087 9SMnPb28
Complex precision turned parts
JIS G4804 SUM22
Screw machine parts, bolts, studs, pins
Key Differences
EN 10087 9SMnPb28 specifies Pb which is not specified for JIS G4804 SUM22.
JIS G4804 SUM22 specifies P which is not specified for EN 10087 9SMnPb28.
Can EN 10087 9SMnPb28 Be Substituted With JIS G4804 SUM22?
EN 10087 9SMnPb28 and JIS G4804 SUM22 overlap closely enough on chemistry and mechanical properties that JIS G4804 SUM22 is often considered as a substitute for EN 10087 9SMnPb28 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
What is the difference between EN 10087 9SMnPb28 and JIS G4804 SUM22?
EN 10087 9SMnPb28 specifies Pb which is not specified for JIS G4804 SUM22. JIS G4804 SUM22 specifies P which is not specified for EN 10087 9SMnPb28.
Can EN 10087 9SMnPb28 be substituted with JIS G4804 SUM22?
EN 10087 9SMnPb28 and JIS G4804 SUM22 overlap closely enough on chemistry and mechanical properties that JIS G4804 SUM22 is often considered as a substitute for EN 10087 9SMnPb28 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.