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SAE J403 1044 vs AISI 1045

Strong Match — 93.1% match based on chemical composition and mechanical property overlap.

SAE J403 1044 (SAE J403:2009) and AISI 1045 are both steel grades. Both fall under the Carbon Steel category. SAE J403 1044 is typically used for chemistry-only grade; product scope as listed in the composition notes, while AISI 1045 is commonly used for shafts, gears, axles, bolts, machine parts. SAE J403 1044 is defined under SAE International, originating from United States, while AISI 1045 is defined under AISI, originating from United States.

As per chemical composition, SAE J403 1044 vs AISI 1045 is a 93.1% 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 93.1%.

Frequently Compared With SAE J403 1044:
BS 970 (Part 1) 040A10 BS 970 (Part 3) 070M55 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 055M15 BS 970 (Part 1) 060A32 BS 970 (Part 1) 040A04 BS 970 (Part 1) 045A10 BS 970 (Part 3) 045A10 BS 970 (Part 1) 045M10
Match Breakdown
CHEMISTRY MATCH
93.1%
MECHANICAL MATCH
No shared data
OVERALL
93.1%
Specifications
Property SAE J403 1044 AISI 1045
Standard SAE J403:2009 AISI
Category Carbon Steel Carbon Steel
C (%) 0.43-0.50 0.43–0.50
Mn (%) 0.30-0.60 0.60–0.90
P (%) <=0.030 ≤0.030
S (%) <=0.050 ≤0.050
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property SAE J403 1044 AISI 1045
Condition Not specified Hot Rolled
Tensile Strength Not specified 570-700 MPa
Yield Strength Not specified 310-450 MPa
Elongation Not specified 16-20%
Hardness Not specified 170-210 HB
Typical Applications
SAE J403 1044
Chemistry-only grade; product scope as listed in the composition notes
AISI 1045
Shafts, gears, axles, bolts, machine parts
Can SAE J403 1044 Be Substituted With AISI 1045?
SAE J403 1044 and AISI 1045 overlap closely enough on chemistry and mechanical properties that AISI 1045 is often considered as a substitute for SAE J403 1044 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
SAE J403 1044
No active listings currently.
AISI 1045
Round Bar → (3 listings)
Diameter: 40–40 mm (1.57–1.57 in)
Length: 6000–7000 mm (236.22–275.59 in)
On M-EX Right Now
SAE J403 1044
0 active listings and RFQs →
AISI 1045
3 active listings and RFQs →
Frequently Asked Questions
What is the difference between SAE J403 1044 and AISI 1045?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can SAE J403 1044 be substituted with AISI 1045?
SAE J403 1044 and AISI 1045 overlap closely enough on chemistry and mechanical properties that AISI 1045 is often considered as a substitute for SAE J403 1044 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.