L80 Steel Grade 8-5/8inch STC Thread Casing Pipe AddThis Sharing Buttons Share to FacebookFacebookShare to TwitterTwitterShare to LinkedInLinkedInShare to PinterestPinterestShare to ...AddThis L80 Steel Grade 8-5/8inch STC Thread Casing Pipe used for Oil well. Send InquiryChat Now Product Details: L80 Steel Grade 8-5/8inch STC Thread Casing Pipe Introduction L80 Steel Grade 8-5/8inch STC Thread Casing Pipe used for Oil well. Specification Size 8-5/8â?? Material Grade L80 Thread Type STC Length R3 Product Description Size Outside Diameter(mm) Wall Thickness(mm) 4-1/2â?? 114.30 5.21-8.56 5â?? 127.00 5.59-12.7