Post Stock Login Register

DIN 17210 20Mn5 vs BS 970 (Part 3) 045A10

Close Alternative — 83.1% match based on chemical composition and mechanical property overlap.

DIN 17210 20Mn5 (DIN 17210:1986) and BS 970 (Part 3) 045A10 (BS 970 (Part 3):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 3) 045A10 is commonly used for bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; case hardening steel, carbon and carbon manganese (table 14). DIN 17210 20Mn5 is defined under Deutsches Institut fur Normung (DIN), originating from Germany, while BS 970 (Part 3) 045A10 is defined under British Standards (BS), originating from United Kingdom.

As per chemical composition, DIN 17210 20Mn5 vs BS 970 (Part 3) 045A10 is a 83.1% 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 83.1%.

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 1) 045M10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 055M15 BS 970 (Part 1) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 3) 070M20 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045A10
Match Breakdown
CHEMISTRY MATCH
83.1%
MECHANICAL MATCH
No shared data
OVERALL
83.1%
Specifications
Property DIN 17210 20Mn5 BS 970 (Part 3) 045A10
Standard DIN 17210:1986 BS 970 (Part 3):1991
Category Carbon Steel Carbon Steel
C (%) 0.17-0.23 0.08-0.13
Mn (%) 1.10-1.40 0.30-0.60
Si (%) <=0.40 0.10-0.40
P (%) <=0.040 <=0.05
S (%) <=0.040 <=0.05
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 3) 045A10
Tensile Strength 490-690 MPa Not specified
Yield Strength 295 MPa min Not specified
Elongation 20% min Not specified
Hardness 143-201 HB Not specified
Typical Applications
DIN 17210 20Mn5
Unalloyed manganese carbon steel for quenching and tempering; machine components requiring moderate strength and hardenability
BS 970 (Part 3) 045A10
Bright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; case hardening steel, carbon and carbon manganese (Table 14)
Can DIN 17210 20Mn5 Be Substituted With BS 970 (Part 3) 045A10?
DIN 17210 20Mn5 and BS 970 (Part 3) 045A10 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 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 3) 045A10
No active listings currently.
On M-EX Right Now
DIN 17210 20Mn5
2 active listings and RFQs →
BS 970 (Part 3) 045A10
0 active listings and RFQs →
Frequently Asked Questions
What is the difference between DIN 17210 20Mn5 and BS 970 (Part 3) 045A10?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can DIN 17210 20Mn5 be substituted with BS 970 (Part 3) 045A10?
DIN 17210 20Mn5 and BS 970 (Part 3) 045A10 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.