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BS 970 (Part 1) 805A20 vs UNI 11234 100Cr6

Minimal Match — 34.3% match based on chemical composition and mechanical property overlap.

BS 970 (Part 1) 805A20 (BS 970 (Part 1):1991) and UNI 11234 100Cr6 (UNI 11234:2007) are both steel grades. Both fall under the Alloy Steel category. BS 970 (Part 1) 805A20 is typically used for case hardening steel (section four), while UNI 11234 100Cr6 is commonly used for ball bearings,roller bearings,needle bearings,dies,punches,gauges,wear resistant components. BS 970 (Part 1) 805A20 is defined under British Standards (BS), originating from United Kingdom, while UNI 11234 100Cr6 is defined under Ente Nazionale Italiano di Unificazione (UNI), originating from Italy.

As per chemical composition, BS 970 (Part 1) 805A20 vs UNI 11234 100Cr6 is a 51.4% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 34.3%.

Frequently Compared With BS 970 (Part 1) 805A20:
IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 4) 10Mo6 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 NF A35-565 100C6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 7) 10Cr36Mo10H IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 105Cr5 IS 4367 10Cr9Mo10 IS 11169 (Part 1) 10Ni5Cr4 IS 1570 (Part 7) 10Mo6H
Match Breakdown
CHEMISTRY MATCH
51.4%
MECHANICAL MATCH
0%
OVERALL
34.3%
Specifications
Property BS 970 (Part 1) 805A20 UNI 11234 100Cr6
Standard BS 970 (Part 1):1991 UNI 11234:2007
Category Alloy Steel Alloy Steel
C (%) 0.18-0.23 0.93-1.05
Mn (%) 0.70-0.90 0.25-0.45
Cr (%) 0.40-0.60 1.35-1.65
Mo (%) 0.15-0.25 Not specified
Ni (%) 0.40-0.70 Not specified
Si (%) Not specified 0.15-0.35
P (%) Not specified <=0.025
S (%) Not specified <=0.025
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) 805A20 UNI 11234 100Cr6
Condition Case hardened, 19 mm test bar Not specified
Tensile Strength 850 MPa min 750-1000 MPa
Elongation 11 % min 10-14 %
Yield Strength Not specified 400-600 MPa
Hardness Not specified 60-64 HRC
Typical Applications
BS 970 (Part 1) 805A20
Case hardening steel (section four)
UNI 11234 100Cr6
ball bearings,roller bearings,needle bearings,dies,punches,gauges,wear resistant components
Key Differences
Can BS 970 (Part 1) 805A20 Be Substituted With UNI 11234 100Cr6?
BS 970 (Part 1) 805A20 and UNI 11234 100Cr6 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.
Forms & Sizes Available on M-EX
BS 970 (Part 1) 805A20
No active listings currently.
UNI 11234 100Cr6
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5700–6800 mm (224.41–267.72 in)
On M-EX Right Now
BS 970 (Part 1) 805A20
0 active listings and RFQs →
UNI 11234 100Cr6
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between BS 970 (Part 1) 805A20 and UNI 11234 100Cr6?
BS 970 (Part 1) 805A20 specifies Mo, Ni which are not specified for UNI 11234 100Cr6. UNI 11234 100Cr6 specifies Si, P, S which are not specified for BS 970 (Part 1) 805A20.
Can BS 970 (Part 1) 805A20 be substituted with UNI 11234 100Cr6?
BS 970 (Part 1) 805A20 and UNI 11234 100Cr6 share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.