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GB/T 699 35Mn vs EN 10084 17CrNi6-6

Related Material — 65% match based on chemical composition and mechanical property overlap.

GB/T 699 35Mn (GB/T 699:2015) and EN 10084 17CrNi6-6 (EN 10084:2008) are both steel grades. GB/T 699 35Mn is classified under Carbon Steel, while EN 10084 17CrNi6-6 is classified under Alloy Steel — a different category, which is worth noting alongside the chemistry match below. GB/T 699 35Mn is typically used for hot-rolled or forged quality carbon structural steel bars up to 250 mm, while EN 10084 17CrNi6-6 is commonly used for case hardened machine parts: carburized or carbonitrided, then hardened (clause 3.1). GB/T 699 35Mn is defined under Guobiao Standards (GB/T), originating from China, while EN 10084 17CrNi6-6 is defined under European Standard (EN), originating from Europe.

As per chemical composition, GB/T 699 35Mn vs EN 10084 17CrNi6-6 is a 64.9% match. As per mechanical properties, the match is 100%. Combined, this makes them a related material overall at 65%.

Frequently Compared With GB/T 699 35Mn:
BS 970 (Part 1) 060A45 BS 970 (Part 1) 040A04 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045A10 BS 970 (Part 3) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 055M15 BS 970 (Part 1) 060A32 BS 970 (Part 1) 060A40 BS 970 (Part 1) 040A10 BS 970 (Part 1) 045A10
Match Breakdown
CHEMISTRY MATCH
64.9%
MECHANICAL MATCH
100%
OVERALL
65%
Specifications
Property GB/T 699 35Mn EN 10084 17CrNi6-6
Standard GB/T 699:2015 EN 10084:2008
Category Carbon Steel Alloy Steel
C (%) 0.32-0.39 0.14-0.20
Si (%) 0.17-0.37 <=0.40
Mn (%) 0.70-1.00 0.50-0.90
P (%) <=0.035 <=0.025
S (%) <=0.035 <=0.035
Cr (%) <=0.25 1.40-1.70
Ni (%) <=0.30 1.40-1.70
Cu (%) <=0.25 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 GB/T 699 35Mn EN 10084 17CrNi6-6
Tensile Strength >=560 MPa Not specified
Yield Strength >=335 MPa Not specified
Elongation >=18% Not specified
Hardness <=229 HB (as delivered, not heat treated) Soft annealed: 229 HB max
Condition Normalized 25 mm sample blank, bars up to 80 mm; hardness for delivery state Soft annealed
Hardenability Not specified +H band at 1.5 mm from the quenched end: 39 to 47 HRC
Typical Applications
GB/T 699 35Mn
Hot-rolled or forged quality carbon structural steel bars up to 250 mm
EN 10084 17CrNi6-6
Case hardened machine parts: carburized or carbonitrided, then hardened (clause 3.1)
Key Differences
Can GB/T 699 35Mn Be Substituted With EN 10084 17CrNi6-6?
GB/T 699 35Mn and EN 10084 17CrNi6-6 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.
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GB/T 699 35Mn
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EN 10084 17CrNi6-6
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Frequently Asked Questions
What is the difference between GB/T 699 35Mn and EN 10084 17CrNi6-6?
Different category: GB/T 699 35Mn is Carbon Steel, EN 10084 17CrNi6-6 is Alloy Steel. GB/T 699 35Mn specifies Cu which is not specified for EN 10084 17CrNi6-6.
Can GB/T 699 35Mn be substituted with EN 10084 17CrNi6-6?
GB/T 699 35Mn and EN 10084 17CrNi6-6 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.