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BS 970 (Part 1) 808M17 vs BS 970 (Part 1) 805A22

Close Alternative — 83.6% match based on chemical composition and mechanical property overlap.

BS 970 (Part 1) 808M17 (BS 970 (Part 1):1991) and BS 970 (Part 1) 805A22 (BS 970 (Part 1):1991) are both steel grades. Both fall under the Alloy Steel category. BS 970 (Part 1) 808M17 is typically used for case hardening steel (section four), while BS 970 (Part 1) 805A22 is commonly used for case hardening steel (section four). BS 970 (Part 1) 808M17 is defined under British Standards (BS), originating from United Kingdom, while BS 970 (Part 1) 805A22 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, BS 970 (Part 1) 808M17 vs BS 970 (Part 1) 805A22 is a 75.4% match. As per mechanical properties, the match is 100%. Combined, this makes them a close alternative overall at 83.6%.

Frequently Compared With BS 970 (Part 1) 808M17:
NF A35-565 100C6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 1570 (Part 4) 10Mo6 IS 1570 (Part 4) 07Cr4Mo6 UNI 11234 100Cr6 IS 1570 (Part 4) 105Cr5 IS 4367 10Cr9Mo10 IS 1570 (Part 7) 10Mo6H
Match Breakdown
CHEMISTRY MATCH
75.4%
MECHANICAL MATCH
100%
OVERALL
83.6%
Specifications
Property BS 970 (Part 1) 808M17 BS 970 (Part 1) 805A22
Standard BS 970 (Part 1):1991 BS 970 (Part 1):1991
Category Alloy Steel Alloy Steel
C (%) 0.14-0.20 0.20-0.25
Mn (%) 0.70-1.05 0.70-0.90
Cr (%) 0.35-0.65 0.40-0.60
Mo (%) 0.30-0.40 0.15-0.25
Ni (%) 0.35-0.75 0.40-0.70
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property BS 970 (Part 1) 808M17 BS 970 (Part 1) 805A22
Condition Case hardened, 19 mm test bar Case hardened, 19 mm test bar
Tensile Strength 930 MPa min 930 MPa min
Elongation 10 % min 10 % min
Typical Applications
BS 970 (Part 1) 808M17
Case hardening steel (section four)
BS 970 (Part 1) 805A22
Case hardening steel (section four)
Can BS 970 (Part 1) 808M17 Be Substituted With BS 970 (Part 1) 805A22?
BS 970 (Part 1) 808M17 and BS 970 (Part 1) 805A22 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.
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BS 970 (Part 1) 808M17
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BS 970 (Part 1) 805A22
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Frequently Asked Questions
What is the difference between BS 970 (Part 1) 808M17 and BS 970 (Part 1) 805A22?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can BS 970 (Part 1) 808M17 be substituted with BS 970 (Part 1) 805A22?
BS 970 (Part 1) 808M17 and BS 970 (Part 1) 805A22 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.