Strong Match — 98.9% match
based on chemical composition and mechanical property overlap.
AISI 1020 and SAE J403 1020 (SAE J403:2009) are both steel grades.
Both fall under the Carbon Steel category.
AISI 1020 is typically used for shafts, pins, keys, lightly stressed parts, while SAE J403 1020 is commonly used for chemistry-only grade; product scope as listed in the composition notes.
AISI 1020 is defined under AISI, originating from United States, while SAE J403 1020 is defined under SAE International, originating from United States.
As per chemical composition, AISI 1020 vs SAE J403 1020 is a 98.9% match.
Mechanical property data is not available for both grades, so this factor could not be scored.
Combined, this makes them a strong match overall at 98.9%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
AISI 1020
SAE J403 1020
Tensile Strength
420–560 MPa
Not specified
Elongation
≥23%
Not specified
Hardness
≤149 HB
Not specified
Typical Applications
AISI 1020
Shafts, pins, keys, lightly stressed parts
SAE J403 1020
Chemistry-only grade; product scope as listed in the composition notes
Can AISI 1020 Be Substituted With SAE J403 1020?
AISI 1020 and SAE J403 1020 overlap closely enough on chemistry and mechanical properties that SAE J403 1020 is often considered as a substitute for AISI 1020 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 AISI 1020 and SAE J403 1020?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can AISI 1020 be substituted with SAE J403 1020?
AISI 1020 and SAE J403 1020 overlap closely enough on chemistry and mechanical properties that SAE J403 1020 is often considered as a substitute for AISI 1020 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.