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DIN 17210 20CrMo5 vs BS 970 (Part 1) 708M20

Close Alternative — 73.3% match based on chemical composition and mechanical property overlap.

DIN 17210 20CrMo5 (DIN 17210:1986) and BS 970 (Part 1) 708M20 (BS 970 (Part 1):1983) are both steel grades. Both fall under the Alloy Steel category. DIN 17210 20CrMo5 is typically used for used in gears, shafts, pinions, camshafts, and transmission components., while BS 970 (Part 1) 708M20 is commonly used for case hardening steel for mechanical and allied engineering purposes (table 11 mechanical properties).. DIN 17210 20CrMo5 is defined under Deutsches Institut fur Normung (DIN), originating from Germany, while BS 970 (Part 1) 708M20 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, DIN 17210 20CrMo5 vs BS 970 (Part 1) 708M20 is a 73.3% 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 73.3%.

Frequently Compared With DIN 17210 20CrMo5:
GOST 4543 12HN3A UNI 11234 100Cr6 NF A35-565 100C6 GB/T 3077 12Cr2Ni4A IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 4) 07Cr4Mo6 IS 4367 10Cr9Mo10 IS 4367 07Cr4Mo6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 7) 10Cr36Mo10H IS 1570 (Part 4) 103Cr4
Match Breakdown
CHEMISTRY MATCH
73.3%
MECHANICAL MATCH
No shared data
OVERALL
73.3%
Specifications
Property DIN 17210 20CrMo5 BS 970 (Part 1) 708M20
Standard DIN 17210:1986 BS 970 (Part 1):1983
Category Alloy Steel Alloy Steel
C (%) 0.18-0.23 0.17-0.23
Si (%) 0.15-0.35 Not specified
Mn (%) 0.90-1.20 0.60-0.90
Cr (%) 1.10-1.40 0.85-1.15
Mo (%) 0.20-0.30 0.15-0.25
P (%) <=0.035 <=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 DIN 17210 20CrMo5 BS 970 (Part 1) 708M20
Tensile Strength 800-1000 MPa Not specified
Yield Strength 600 MPa min Not specified
Elongation 10-14% Not specified
Hardness 248-302 HB Not specified
Typical Applications
DIN 17210 20CrMo5
Used in gears, shafts, pinions, camshafts, and transmission components.
BS 970 (Part 1) 708M20
Case hardening steel for mechanical and allied engineering purposes (Table 11 mechanical properties).
Key Differences
Can DIN 17210 20CrMo5 Be Substituted With BS 970 (Part 1) 708M20?
DIN 17210 20CrMo5 and BS 970 (Part 1) 708M20 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.
Forms & Sizes Available on M-EX
DIN 17210 20CrMo5
Round Bar → (2 listings)
Diameter: 50–50 mm (1.97–1.97 in)
Length: 5800–6700 mm (228.35–263.78 in)
BS 970 (Part 1) 708M20
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On M-EX Right Now
DIN 17210 20CrMo5
2 active listings and RFQs →
BS 970 (Part 1) 708M20
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Frequently Asked Questions
What is the difference between DIN 17210 20CrMo5 and BS 970 (Part 1) 708M20?
DIN 17210 20CrMo5 specifies Si which is not specified for BS 970 (Part 1) 708M20.
Can DIN 17210 20CrMo5 be substituted with BS 970 (Part 1) 708M20?
DIN 17210 20CrMo5 and BS 970 (Part 1) 708M20 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.