Warranty period - 1 yr.
Service life is 3 yrs.
Average MTBF 400 screws - unscrews, for TMK TDS connection - 50 screws - unscrews
Outer diameter of the coupling end up to and including 175 mm.
Tensile strength not less than 965 MPa
Yield strength not less than 758 MPa;
Relative elongation not less than 13 %
Impact toughness KCU value not less than 600 J/sq. m
Impact work KV value not less than 54 J
Outer diameter of the coupling end over 175 mm
Tensile strength not less than 931 MPa
Yield strength not less than 689 MPa;
Relative elongation not less than 13 %
Impact toughness KCU value not less than 600 J/sq. m
Impact work KV value not less than 54 J
Pipe hardness shall be 302...364HB at a length of at least 550mm from the ends and 285...364HB at the rest of the pipe.
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