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BS 970 EN19C vs BS 970 (Part 1) 709A42

Close Alternative — 84.9% match based on chemical composition and mechanical property overlap.

BS 970 EN19C (BS 970:1955) and BS 970 (Part 1) 709A42 (BS 970 (Part 1):1983) are both steel grades. Both fall under the Alloy Steel category. BS 970 EN19C is defined under British Standards (BS), originating from United Kingdom, while BS 970 (Part 1) 709A42 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, BS 970 EN19C vs BS 970 (Part 1) 709A42 is a 84.9% match. Mechanical property data is not available for both grades, so this factor could not be scored. Combined, this makes them a close alternative overall at 84.9%.

Frequently Compared With BS 970 EN19C:
IS 1570 (Part 7) 10Mo6H IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 NF A35-565 100C6 UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 10Cr9Mo10 IS 1570 (Part 4) 10Mo6
Match Breakdown
CHEMISTRY MATCH
84.9%
MECHANICAL MATCH
No shared data
OVERALL
84.9%
Specifications
Property BS 970 EN19C BS 970 (Part 1) 709A42
Standard BS 970:1955 BS 970 (Part 1):1983
Category Alloy Steel Alloy Steel
C (%) 0.40-0.45 0.40-0.45
Si (%) 0.10-0.35 Not specified
Mn (%) 0.50-0.80 0.75-1.00
Cr (%) 0.90-1.20 0.90-1.20
Mo (%) 0.20-0.35 0.25-0.35
S (%) <=0.050 <=0.040
P (%) <=0.050 <=0.035
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 EN19C BS 970 (Part 1) 709A42
Tensile Strength ≥695 MPa (45 tons/sq in, converted) Not specified
Yield Strength ≥525 MPa (34 tons/sq in, converted) Not specified
Elongation ≥22% Not specified
Hardness 201-255 HB Not specified
Condition Hardened and tempered R, ruling section 6 in (lowest-strength condition of the standard) Not specified
Typical Applications
BS 970 EN19C
Not documented
BS 970 (Part 1) 709A42
Through hardening steel for mechanical and allied engineering purposes; supplied in the hardened and tempered conditions of Table 6.
Key Differences
Can BS 970 EN19C Be Substituted With BS 970 (Part 1) 709A42?
BS 970 EN19C and BS 970 (Part 1) 709A42 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.
On M-EX Right Now
BS 970 EN19C
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BS 970 (Part 1) 709A42
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Frequently Asked Questions
What is the difference between BS 970 EN19C and BS 970 (Part 1) 709A42?
BS 970 EN19C specifies Si which is not specified for BS 970 (Part 1) 709A42.
Can BS 970 EN19C be substituted with BS 970 (Part 1) 709A42?
BS 970 EN19C and BS 970 (Part 1) 709A42 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.