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EN 10083-3 25CrMoS4 vs BS 970 (Part 1) 708A25

Close Alternative — 84.6% match based on chemical composition and mechanical property overlap.

EN 10083-3 25CrMoS4 (EN 10083-3:2006) and BS 970 (Part 1) 708A25 (BS 970 (Part 1):1983) are both steel grades. Both fall under the Alloy Steel category. EN 10083-3 25CrMoS4 is typically used for quenched and tempered, flame or induction hardened machine parts (clause 1), while BS 970 (Part 1) 708A25 is commonly used for through hardening steel for mechanical and allied engineering purposes; supplied in the hardened and tempered conditions of table 6.. EN 10083-3 25CrMoS4 is defined under European Standard (EN), originating from Europe, while BS 970 (Part 1) 708A25 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, EN 10083-3 25CrMoS4 vs BS 970 (Part 1) 708A25 is a 84.6% 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 84.6%.

Frequently Compared With EN 10083-3 25CrMoS4:
IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 7) 10Mo6H IS 1570 (Part 4) 103Cr6 IS 4367 10Cr9Mo10 NF A35-565 100C6 UNI 11234 100Cr6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 1570 (Part 4) 10Mo6
Match Breakdown
CHEMISTRY MATCH
84.6%
MECHANICAL MATCH
No shared data
OVERALL
84.6%
Specifications
Property EN 10083-3 25CrMoS4 BS 970 (Part 1) 708A25
Standard EN 10083-3:2006 BS 970 (Part 1):1983
Category Alloy Steel Alloy Steel
C (%) 0.22-0.29 0.23-0.28
Cr (%) 0.90-1.20 0.90-1.20
Mn (%) 0.60-0.90 0.50-0.80
Mo (%) 0.15-0.30 0.15-0.25
P (%) <=0.025 <=0.035
S (%) 0.020-0.040 <=0.040
Si (%) <=0.40 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 EN 10083-3 25CrMoS4 BS 970 (Part 1) 708A25
Condition Quenched and tempered (+QT), ruling section d <= 16 mm Not specified
Elongation 12% min Not specified
Hardness Soft annealed (+A): 212 HBW max Not specified
Tensile Strength 900 to 1100 MPa Not specified
Yield Strength 700 MPa min Not specified
Typical Applications
EN 10083-3 25CrMoS4
Quenched and tempered, flame or induction hardened machine parts (clause 1)
BS 970 (Part 1) 708A25
Through hardening steel for mechanical and allied engineering purposes; supplied in the hardened and tempered conditions of Table 6.
Key Differences
Can EN 10083-3 25CrMoS4 Be Substituted With BS 970 (Part 1) 708A25?
EN 10083-3 25CrMoS4 and BS 970 (Part 1) 708A25 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
EN 10083-3 25CrMoS4
0 active listings and RFQs →
BS 970 (Part 1) 708A25
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between EN 10083-3 25CrMoS4 and BS 970 (Part 1) 708A25?
EN 10083-3 25CrMoS4 specifies Si which is not specified for BS 970 (Part 1) 708A25.
Can EN 10083-3 25CrMoS4 be substituted with BS 970 (Part 1) 708A25?
EN 10083-3 25CrMoS4 and BS 970 (Part 1) 708A25 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.