YGCM supplies the Mining Round-Link Chains and the Harbour
Chains of terent size which have high lensile strength and
superior quality, and can also supply the Round一Link
Chain of different sizes at any length to meet your
requirements．
The Round Link Chains produced by
our Company, which was manufactured by high-quality alloy
steel， are of a fine austenitic grain
size and an evenly distributed crystalline phase, and
possessed of excellent weldability，Type φ18×64mm
Mining Round-Link Chain was awarded Good Quality Medal
from the Ministry of Coal Industry and Shandong
Province.
Their precision and
performance are accord with the demands of the grade B and
C in the Standard No.GB/T12718 “On High Tensile Mining
Round-Link Chain". The diameter of the chain at
welded position does not exceed 7.5% of the diameter
of the chain iron. The misalignment dimension at two
ends of the welded positipn is no greater than 5％of
the diameter of the chain. A breakdown does not happen due
to brittle fracture because the chain is provided
with sufficient toughness, and as the round-link chain can
bear a tremendous breaking load, it has prominent
endurance to the impact load. The minimum (total)
elongation for every chain link is no less than l2％ upon
breakng，it is safe and reliable abd of a long service
life for use.
Proof Coil Chains
Mining Round-Link Chains
Harbour Chains
Optimum
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