Description OverviewSteel grade # 70Diameter: 2.00 mmDiameter tolerance: +0.02/-0.03 mmTensile strength: 1900-2100 N/mm²Twists amount: no less than 22Chemical ContentCarbon: 0.67-0.75%Manganese: 0.40-0.70%Silicon: max 0.45%Sulfur: max 0.025%Phosphorus: max 0.025%Chromium: max 0.15%