Round Oil Tempered Spring Wire as per EN10270-2, ASTM A229, ASTM A230, ASTM A231, ASTM A232, ASTM A401, ASTM A877, ASTM A1000,etc. Diameter: 0.5-20.0mm. VDSiCr & VDSiCrV & VDCrV made of Super Clean wire with diameter 0.50-2.29mm (Shaved) 2.30-10.00mm (Shaved & Eddy Current Tested) Wire rod from Bao Steel (China), Saarstahl (Germany) and POSCO (Korea)