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IS 11169 (Part 1) 20NiCrMo2 vs BS 970 (Part 1) 805A20

Strong Match — 92% match based on chemical composition and mechanical property overlap.

IS 11169 (Part 1) 20NiCrMo2 (IS 11169 (Part 1):2022) and BS 970 (Part 1) 805A20 (BS 970 (Part 1):1983) are both steel grades. Both fall under the Alloy Steel category. IS 11169 (Part 1) 20NiCrMo2 is typically used for cold heading and cold extrusion of parts that are case hardened; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, annex b), while BS 970 (Part 1) 805A20 is commonly used for case hardening steel for mechanical and allied engineering purposes (table 11 mechanical properties).. IS 11169 (Part 1) 20NiCrMo2 is defined under Bureau of Indian Standards (IS), originating from India, while BS 970 (Part 1) 805A20 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, IS 11169 (Part 1) 20NiCrMo2 vs BS 970 (Part 1) 805A20 is a 92% 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 92%.

Frequently Compared With IS 11169 (Part 1) 20NiCrMo2:
IS 1570 (Part 4) 103Cr6 IS 4367 10Cr9Mo10 IS 11169 (Part 1) 10Ni5Cr4 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 NF A35-565 100C6 UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 1570 (Part 4) 10Mo6
Match Breakdown
CHEMISTRY MATCH
92%
MECHANICAL MATCH
No shared data
OVERALL
92%
Specifications
Property IS 11169 (Part 1) 20NiCrMo2 BS 970 (Part 1) 805A20
Standard IS 11169 (Part 1):2022 BS 970 (Part 1):1983
Category Alloy Steel Alloy Steel
C (%) 0.18-0.23 0.18-0.23
Cr (%) 0.40-0.60 0.40-0.60
Cu (%) <=0.15 Not specified
Mn (%) 0.70-0.90 0.70-0.90
Mo (%) 0.15-0.25 0.15-0.25
Ni (%) 0.40-0.70 0.40-0.70
P (%) <=0.035 <=0.035
S (%) <=0.035 <=0.040
Si (%) 0.10-0.35 Not specified
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property IS 11169 (Part 1) 20NiCrMo2 BS 970 (Part 1) 805A20
Hardness, annealed (+AC) <=180 HBW Not specified
Typical Applications
IS 11169 (Part 1) 20NiCrMo2
Cold heading and cold extrusion of parts that are case hardened; the standard covers bars, wire rods and wires of 2 to 100 mm (clause 1.1, Annex B)
BS 970 (Part 1) 805A20
Case hardening steel for mechanical and allied engineering purposes (Table 11 mechanical properties).
Key Differences
Can IS 11169 (Part 1) 20NiCrMo2 Be Substituted With BS 970 (Part 1) 805A20?
IS 11169 (Part 1) 20NiCrMo2 and BS 970 (Part 1) 805A20 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 805A20 is often considered as a substitute for IS 11169 (Part 1) 20NiCrMo2 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
On M-EX Right Now
IS 11169 (Part 1) 20NiCrMo2
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BS 970 (Part 1) 805A20
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Frequently Asked Questions
What is the difference between IS 11169 (Part 1) 20NiCrMo2 and BS 970 (Part 1) 805A20?
IS 11169 (Part 1) 20NiCrMo2 specifies Cu, Si which are not specified for BS 970 (Part 1) 805A20.
Can IS 11169 (Part 1) 20NiCrMo2 be substituted with BS 970 (Part 1) 805A20?
IS 11169 (Part 1) 20NiCrMo2 and BS 970 (Part 1) 805A20 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 805A20 is often considered as a substitute for IS 11169 (Part 1) 20NiCrMo2 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.