Close Alternative — 82.1% match
based on chemical composition and mechanical property overlap.
AISI 3310 and BS 970 (Part 1) 655H13 (BS 970 (Part 1):1991) are both steel grades.
Both fall under the Alloy Steel category.
AISI 3310 is typically used for aircraft gears, heavily stressed case hardened parts, while BS 970 (Part 1) 655H13 is commonly used for case hardening steel (section four).
AISI 3310 is defined under AISI, originating from United States, while BS 970 (Part 1) 655H13 is defined under British Standards (BS), originating from United Kingdom.
As per chemical composition, AISI 3310 vs BS 970 (Part 1) 655H13 is a 82.1% match.
Mechanical property data is not available for both grades, so this factor could not be scored.
Combined, this makes them a close alternative overall at 82.1%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
AISI 3310
BS 970 (Part 1) 655H13
Tensile Strength
900–1100 MPa
Not specified
Case Hardness HRC
60–65
Not specified
Elongation
≥10%
Not specified
Typical Applications
AISI 3310
Aircraft gears, heavily stressed case hardened parts
BS 970 (Part 1) 655H13
Case hardening steel (section four)
Can AISI 3310 Be Substituted With BS 970 (Part 1) 655H13?
AISI 3310 and BS 970 (Part 1) 655H13 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.
What is the difference between AISI 3310 and BS 970 (Part 1) 655H13?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can AISI 3310 be substituted with BS 970 (Part 1) 655H13?
AISI 3310 and BS 970 (Part 1) 655H13 are a close alternative rather than a direct substitute. Some properties overlap well, but check the specific chemistry and mechanical rows above against your application's requirements before treating them as interchangeable.