Close Alternative — 81.3% match
based on chemical composition and mechanical property overlap.
GOST 1050 20 (GOST 1050-2013) and GB/T 699 20 (GB/T 699:2015) are both steel grades.
Both fall under the Carbon Steel category.
GOST 1050 20 is typically used for shafts, bolts, gears, pins, forgings, machined components, while GB/T 699 20 is commonly used for used for shafts, pins, carburized parts, welded structures, bolts, and machine brackets..
GB/T 699 20 is defined under Guobiao Standards (GB/T) (China).
As per chemical composition, GOST 1050 20 vs GB/T 699 20 is a 97% match.
As per mechanical properties, the match is 50%.
Combined, this makes them a close alternative overall at 81.3%.
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property
GOST 1050 20
GB/T 699 20
Tensile Strength
410-550 MPa
>=410 MPa
Yield Strength
>=245 MPa
>=245 MPa
Elongation
>=24%
>=25%
Hardness
<=156 HB
<=156 HB (as delivered, not heat treated)
Condition
Not specified
Normalized 25 mm sample blank, bars up to 80 mm; hardness for delivery state
Used for shafts, pins, carburized parts, welded structures, bolts, and machine brackets.
Can GOST 1050 20 Be Substituted With GB/T 699 20?
GOST 1050 20 and GB/T 699 20 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.
What is the difference between GOST 1050 20 and GB/T 699 20?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can GOST 1050 20 be substituted with GB/T 699 20?
GOST 1050 20 and GB/T 699 20 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.