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DIN 17210 20Mn5 vs BS 970 (Part 1) 045M10

Minimal Match — 53% match based on chemical composition and mechanical property overlap.

DIN 17210 20Mn5 (DIN 17210:1986) and BS 970 (Part 1) 045M10 (BS 970 (Part 1):1991) are both steel grades. Both fall under the Carbon Steel category. DIN 17210 20Mn5 is typically used for unalloyed manganese carbon steel for quenching and tempering; machine components requiring moderate strength and hardenability, while BS 970 (Part 1) 045M10 is commonly used for case hardening steel (section four). DIN 17210 20Mn5 is defined under Deutsches Institut fur Normung (DIN), originating from Germany, while BS 970 (Part 1) 045M10 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, DIN 17210 20Mn5 vs BS 970 (Part 1) 045M10 is a 79.6% match. As per mechanical properties, the match is 0%. Combined, this makes them a minimal match overall at 53%.

Frequently Compared With DIN 17210 20Mn5:
BS 970 (Part 1) 080A20 BS 970 (Part 3) 070M55 BS 970 (Part 1) 040A10 BS 970 (Part 1) 040A04 BS 970 (Part 3) 045M10 BS 970 (Part 1) 045A10 BS 970 (Part 3) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 1) 055M15 BS 970 (Part 3) 070M20 BS 970 (Part 1) 045A10 BS 970 (Part 1) 040A12
Match Breakdown
CHEMISTRY MATCH
79.6%
MECHANICAL MATCH
0%
OVERALL
53%
Specifications
Property DIN 17210 20Mn5 BS 970 (Part 1) 045M10
Standard DIN 17210:1986 BS 970 (Part 1):1991
Category Carbon Steel Carbon Steel
C (%) 0.17-0.23 0.07-0.13
Mn (%) 1.10-1.40 0.30-0.60
Si (%) <=0.40 Not specified
P (%) <=0.040 Not specified
S (%) <=0.040 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 DIN 17210 20Mn5 BS 970 (Part 1) 045M10
Tensile Strength 490-690 MPa 430 MPa min
Yield Strength 295 MPa min Not specified
Elongation 20% min 18 % min
Hardness 143-201 HB Not specified
Condition Not specified Case hardened, 19 mm test bar
Typical Applications
DIN 17210 20Mn5
Unalloyed manganese carbon steel for quenching and tempering; machine components requiring moderate strength and hardenability
BS 970 (Part 1) 045M10
Case hardening steel (section four)
Key Differences
Can DIN 17210 20Mn5 Be Substituted With BS 970 (Part 1) 045M10?
DIN 17210 20Mn5 and BS 970 (Part 1) 045M10 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
DIN 17210 20Mn5
Round Bar → (2 listings)
Diameter: 40–40 mm (1.57–1.57 in)
Length: 6000–7000 mm (236.22–275.59 in)
BS 970 (Part 1) 045M10
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On M-EX Right Now
DIN 17210 20Mn5
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BS 970 (Part 1) 045M10
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Frequently Asked Questions
What is the difference between DIN 17210 20Mn5 and BS 970 (Part 1) 045M10?
DIN 17210 20Mn5 specifies Si, P, S which are not specified for BS 970 (Part 1) 045M10.
Can DIN 17210 20Mn5 be substituted with BS 970 (Part 1) 045M10?
DIN 17210 20Mn5 and BS 970 (Part 1) 045M10 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.