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UNI 7846 16NiCr11 vs BS 970 (Part 1) 635H15

Related Material — 69.9% match based on chemical composition and mechanical property overlap.

UNI 7846 16NiCr11 (UNI 7846:1978) and BS 970 (Part 1) 635H15 (BS 970 (Part 1):1991) are both steel grades. Both fall under the Alloy Steel category. UNI 7846 16NiCr11 is typically used for gears,pinion shafts,camshafts,transmission parts,heavy duty components,case hardened parts, while BS 970 (Part 1) 635H15 is commonly used for case hardening steel (section four). UNI 7846 16NiCr11 is defined under Ente Nazionale Italiano di Unificazione (UNI), originating from Italy, while BS 970 (Part 1) 635H15 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, UNI 7846 16NiCr11 vs BS 970 (Part 1) 635H15 is a 71.1% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a related material overall at 69.9%.

Frequently Compared With UNI 7846 16NiCr11:
GB/T 3077 12Cr2Ni4A GOST 4543 12HN3A UNI 11234 100Cr6 NF A35-565 100C6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 7) 10Cr36Mo10H IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 10Cr20Mo6 IS 4367 10Cr9Mo10 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 103Cr4
Match Breakdown
CHEMISTRY MATCH
71.1%
MECHANICAL MATCH
No shared data
OVERALL
69.9%
Specifications
Property UNI 7846 16NiCr11 BS 970 (Part 1) 635H15
Standard UNI 7846:1978 BS 970 (Part 1):1991
Category Alloy Steel Alloy Steel
C (%) 0.13-0.18 0.12-0.18
Si (%) 0.15-0.40 Not specified
Mn (%) 0.30-0.60 0.60-0.90
P (%) <=0.035 Not specified
S (%) <=0.035 Not specified
Cr (%) 0.60-1.00 0.40-0.80
Ni (%) 2.50-3.00 0.70-1.10
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property UNI 7846 16NiCr11 BS 970 (Part 1) 635H15
Tensile Strength 700-950 MPa Not specified
Yield Strength 400-600 MPa Not specified
Elongation 10-15 % Not specified
Hardness 58-62 HRC Not specified
Typical Applications
UNI 7846 16NiCr11
gears,pinion shafts,camshafts,transmission parts,heavy duty components,case hardened parts
BS 970 (Part 1) 635H15
Case hardening steel (section four)
Key Differences
Can UNI 7846 16NiCr11 Be Substituted With BS 970 (Part 1) 635H15?
UNI 7846 16NiCr11 and BS 970 (Part 1) 635H15 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
UNI 7846 16NiCr11
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5600–6000 mm (220.47–236.22 in)
BS 970 (Part 1) 635H15
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On M-EX Right Now
UNI 7846 16NiCr11
2 active listings and RFQs →
BS 970 (Part 1) 635H15
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Frequently Asked Questions
What is the difference between UNI 7846 16NiCr11 and BS 970 (Part 1) 635H15?
UNI 7846 16NiCr11 specifies Si, P, S which are not specified for BS 970 (Part 1) 635H15.
Can UNI 7846 16NiCr11 be substituted with BS 970 (Part 1) 635H15?
UNI 7846 16NiCr11 and BS 970 (Part 1) 635H15 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.