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GB/T 699 45 vs IS 5517 40Ni14

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

GB/T 699 45 (GB/T 699:2015) and IS 5517 40Ni14 (IS 5517:1993) are both steel grades. GB/T 699 45 is classified under Carbon Steel, while IS 5517 40Ni14 is classified under Alloy Steel — a different category, which is worth noting alongside the chemistry match below. GB/T 699 45 is defined under Guobiao Standards (GB/T), originating from China, while IS 5517 40Ni14 is defined under Bureau of Indian Standards (IS), originating from India.

As per chemical composition, GB/T 699 45 vs IS 5517 40Ni14 is a 79% match. As per mechanical properties, the match is 50%. Combined, this makes them a related material overall at 65%.

Frequently Compared With GB/T 699 45:
BS 970 (Part 3) 070M55 BS 970 (Part 1) 040A10 BS 970 (Part 1) 045A10 BS 970 (Part 1) 040A04 BS 970 (Part 1) 040A12 BS 970 (Part 1) 045M10 BS 970 (Part 1) 055M15 BS 970 (Part 1) 060A32 BS 970 (Part 3) 045A10 BS 970 (Part 1) 045M10 BS 970 (Part 3) 045M10 BS 970 (Part 1) 045A10
Match Breakdown
CHEMISTRY MATCH
79%
MECHANICAL MATCH
50%
OVERALL
65%
Specifications
Property GB/T 699 45 IS 5517 40Ni14
Standard GB/T 699:2015 IS 5517:1993
Category Carbon Steel Alloy Steel
C (%) 0.42-0.50 0.35-0.45
Si (%) 0.17-0.37 0.10-0.35
Mn (%) 0.50-0.80 0.50-0.80
P (%) <=0.035 <=0.035
S (%) <=0.035 <=0.035
Cr (%) <=0.25 <=0.30
Ni (%) <=0.30 3.20-3.60
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 45 IS 5517 40Ni14
Tensile Strength >=600 MPa 800-950 MPa
Yield Strength >=355 MPa Not specified
Elongation >=16% >=16%
Hardness <=229 HB (as delivered, not heat treated) Not specified
Condition Normalized 25 mm sample blank, bars up to 80 mm; hardness for delivery state Hardened and tempered, ruling section up to 100 mm
Yield Strength (0.2% proof) Not specified 600 MPa min
Izod Impact Not specified 55 J min
Hardness (annealed) Not specified <=229 HB
Typical Applications
GB/T 699 45
Used for shafts, gears, bolts, connecting rods, axles, and hydraulic components.
IS 5517 40Ni14
Not documented
Key Differences
Can GB/T 699 45 Be Substituted With IS 5517 40Ni14?
GB/T 699 45 and IS 5517 40Ni14 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
GB/T 699 45
Round Bar → (2 listings)
Diameter: 40–40 mm (1.57–1.57 in)
Length: 5600–6600 mm (220.47–259.84 in)
IS 5517 40Ni14
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On M-EX Right Now
GB/T 699 45
2 active listings and RFQs →
IS 5517 40Ni14
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Frequently Asked Questions
What is the difference between GB/T 699 45 and IS 5517 40Ni14?
Different category: GB/T 699 45 is Carbon Steel, IS 5517 40Ni14 is Alloy Steel. GB/T 699 45 specifies Cu which is not specified for IS 5517 40Ni14.
Can GB/T 699 45 be substituted with IS 5517 40Ni14?
GB/T 699 45 and IS 5517 40Ni14 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.