Stainless Steel Spring Wire 1) 17-7 stainless steel 2) 17 Chrome - 7 Nickel Wire 3) High quality Stainless Steel Spring Wire1) 17-7 stainless steel2) 17 Chrome - 7 Nickel Wire3) High qualityType 17 chrome - 7 nickel stainless steel wire (AISI 631) has the corrosion resistance of Type 302 plus superior strength and heat resistance. This grade of stainless wire possesses high elastic qualities ...