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EN 10084 17CrNiMo6 vs BS 970 (Part 1) 815M17

Related Material — 68.7% match based on chemical composition and mechanical property overlap.

EN 10084 17CrNiMo6 (EN 10084:1998) and BS 970 (Part 1) 815M17 (BS 970 (Part 1):1983) are both steel grades. Both fall under the Alloy Steel category. EN 10084 17CrNiMo6 is typically used for used in heavy-duty gears, pinions, drive shafts, transmission parts, and industrial gearboxes., while BS 970 (Part 1) 815M17 is commonly used for case hardening steel for mechanical and allied engineering purposes (table 11 mechanical properties).. EN 10084 17CrNiMo6 is defined under European Standard (EN), originating from Europe, while BS 970 (Part 1) 815M17 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, EN 10084 17CrNiMo6 vs BS 970 (Part 1) 815M17 is a 68.7% 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 68.7%.

Frequently Compared With EN 10084 17CrNiMo6:
NF A35-565 100C6 UNI 11234 100Cr6 GOST 4543 12HN3A GB/T 3077 12Cr2Ni4A IS 4367 10Cr9Mo10 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 07Cr4Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 07Cr4Mo6
Match Breakdown
CHEMISTRY MATCH
68.7%
MECHANICAL MATCH
No shared data
OVERALL
68.7%
Specifications
Property EN 10084 17CrNiMo6 BS 970 (Part 1) 815M17
Standard EN 10084:1998 BS 970 (Part 1):1983
Category Alloy Steel Alloy Steel
C (%) 0.15-0.21 0.14-0.20
Si (%) 0.15-0.40 Not specified
Mn (%) 0.50-0.90 0.60-0.90
Cr (%) 1.50-1.80 0.80-1.20
Ni (%) 1.40-1.70 1.20-1.70
Mo (%) 0.25-0.35 0.10-0.20
P (%) <=0.025 <=0.035
S (%) <=0.035 <=0.040
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 17CrNiMo6 BS 970 (Part 1) 815M17
Tensile Strength 900-1200 MPa Not specified
Yield Strength 750 MPa min Not specified
Elongation 9-12% Not specified
Hardness 280-340 HB Not specified
Typical Applications
EN 10084 17CrNiMo6
Used in heavy-duty gears, pinions, drive shafts, transmission parts, and industrial gearboxes.
BS 970 (Part 1) 815M17
Case hardening steel for mechanical and allied engineering purposes (Table 11 mechanical properties).
Key Differences
Can EN 10084 17CrNiMo6 Be Substituted With BS 970 (Part 1) 815M17?
EN 10084 17CrNiMo6 and BS 970 (Part 1) 815M17 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
EN 10084 17CrNiMo6
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5900–6200 mm (232.28–244.09 in)
BS 970 (Part 1) 815M17
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On M-EX Right Now
EN 10084 17CrNiMo6
2 active listings and RFQs →
BS 970 (Part 1) 815M17
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Frequently Asked Questions
What is the difference between EN 10084 17CrNiMo6 and BS 970 (Part 1) 815M17?
EN 10084 17CrNiMo6 specifies Si which is not specified for BS 970 (Part 1) 815M17.
Can EN 10084 17CrNiMo6 be substituted with BS 970 (Part 1) 815M17?
EN 10084 17CrNiMo6 and BS 970 (Part 1) 815M17 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.