• API 5CT N80 casing and tubing pipe
• API 5CT K55 casing and tubing pipe
• API 5CT J55 casing and tubing pipe
• EN10028-2 16Mo3 Boiler and Pressure Vessel steel Plate Notch impact energy
• EN10028-2 P265GH Pressure vessels steel equivalents
• EN 10210 S355J2H low alloy carbon structural steel
• EN 10210 S355J0H steel hollow materials
• GB/T 18248 34CrMo4
• GB/T 18248 35CrMo alloy steel
• 30CrMo steel Heat treatment, 30CrMo steel tube/pipe

SPA-H Smelting process

The molten iron requirement for smelting SPA-H steel must be pretreated by hot metal desulfurization. Before entering the converter, the molten iron has a sulfur content of ≤0.010% and cleans the slag on the surface of the molten iron. Nickel, copper or nickel-copper alloys are added to the converter along with the scrap. The carbon content of the converter smelting end point is ≤0.06% to prevent the steel from being peroxidized. The tapping temperature is controlled at 1 640 ~ 1 660. Before the tapping, the synthetic slag is first added to the ladle for baking. The slag plug and the slag ball double slag method are used to block the slag tapping. The tapping process is carried out by adding silicon calcium strontium, aluminum manganese titanium, silicon manganese, ferrosilicon, medium carbon ferrochrome and phosphorus iron for deoxidation alloying.

Katalor Enterprises, as a SPA-H supplier in China , we can supply SPA-H stock. So if you need SPA-H price , you can contact katalor !