Round Link Chains Grade 8, B

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Diameter (d), mm

Diameter – diameter of round bar used for link manufacture

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Pitch (t), mm

Pitch – internal length of each separate link

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Grade

8

B
Proof load, kN

Proof load – test load

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Break load, kN

Break load – load causing plastic deformation of rolled steel, which results in product failure

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Mining Chains

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Hardness
High-quality steel and heat treatment make it possible to obtain uniform hardness across the entire link surface within 345–385 HB with a tensile strength of not less than 800 MPa for grade 8 and not less than 630 MPa for grade B.

Material
Special high-strength alloy steel

Сoating
NSW – natural black
IOL – ISO 12924 preservation grease
TEC – TECTYL

Standard
Manufacturer’s standards meeting ISO 610-90 and completed with customer requirements.

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Foreign economic department

Olga Sharonova

Foreign economic department

Olga Sharonova

Round Link Chains Grade 8, B

Description