Strong Match — 86.2% match
based on chemical composition and mechanical property overlap.
EN 10084 28Cr4 (EN 10084:2008) and BS 970 (Part 1) 530A30 (BS 970 (Part 1):1983) are both steel grades.
Both fall under the Alloy Steel category.
EN 10084 28Cr4 is typically used for case hardened machine parts: carburized or carbonitrided, then hardened (clause 3.1), while BS 970 (Part 1) 530A30 is commonly used for through hardening steel for mechanical and allied engineering purposes; supplied in the hardened and tempered conditions of table 6..
EN 10084 28Cr4 is defined under European Standard (EN), originating from Europe, while BS 970 (Part 1) 530A30 is defined under British Standards (BS), originating from United Kingdom.
As per chemical composition, EN 10084 28Cr4 vs BS 970 (Part 1) 530A30 is a 86.2% 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 86.2%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
EN 10084 28Cr4
BS 970 (Part 1) 530A30
Condition
Soft annealed
Not specified
Hardenability
+H band at 1.5 mm from the quenched end: 45 to 53 HRC
Not specified
Hardness
Soft annealed: 217 HB max
Not specified
Typical Applications
EN 10084 28Cr4
Case hardened machine parts: carburized or carbonitrided, then hardened (clause 3.1)
BS 970 (Part 1) 530A30
Through hardening steel for mechanical and allied engineering purposes; supplied in the hardened and tempered conditions of Table 6.
Key Differences
EN 10084 28Cr4 specifies Si which is not specified for BS 970 (Part 1) 530A30.
Can EN 10084 28Cr4 Be Substituted With BS 970 (Part 1) 530A30?
EN 10084 28Cr4 and BS 970 (Part 1) 530A30 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 530A30 is often considered as a substitute for EN 10084 28Cr4 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.
What is the difference between EN 10084 28Cr4 and BS 970 (Part 1) 530A30?
EN 10084 28Cr4 specifies Si which is not specified for BS 970 (Part 1) 530A30.
Can EN 10084 28Cr4 be substituted with BS 970 (Part 1) 530A30?
EN 10084 28Cr4 and BS 970 (Part 1) 530A30 overlap closely enough on chemistry and mechanical properties that BS 970 (Part 1) 530A30 is often considered as a substitute for EN 10084 28Cr4 in many applications. Always confirm the specific property range your application needs before substituting, and check with your supplier's mill certificate.