Carbon Steel Spring Wire

Wintwire has the capability to manufacture and supply carbon steel spring wire in a wide range of grades and sizes. Wintwire offers steel wire for mechanical springs to both Euro Norms and British Standards. These wires are patented cold drawn unalloyed spring steels designed specifically for spring applications.

BS EN10270-1 (2011)SpringsBS5216 (1991)DIN 17223
SL: Low strength staticNS1: Normal duty staticWire Grade A
SM: Medium strength staticHS3: High duty staticWire Grade B
DM: Medium strength dynamicND3: Normal duty dynamicWire Grade C
SH: High strength staticM4: High duty static and dynamicWire Grade D
DH: High strength dynamicM5: High duty ground

SizesRound Wire0.10 – 12.00 mm dia.
Shaped WireUpto 45 mm2 area
Flat WireThinnest 0.15 mm
Widest 12.00 mm

Available in four conditions
Condition 1:Hard DrawnThe material has been drawn hard with either a bright surface or a soap coated surface
Condition 2:Specified TensileThe material has been drawn to your desired tensile range


  • BS5216
  • EN10270-1 2011
  • ASTM A230

    Available in

    • Round Wire
    • Shaped Wire


    • Springs


      • In Coil
      • In Lengths
      • On Formers
      • On Spools

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