JIS G3445 Stkm 11A 12A 12b 12c 13A 13b 13c Seamless Steel Pipe

JIS G3445 Stkm 11A 12A 12b 12c 13A 13b 13c Seamless Steel Pipe. Wide Standard Compliance: Meets JIS G3445, DIN 2391, EN10305-1/4, GB/T 8162/8163/3639, ASTM, BS, NF standards. Multiple Surface Treatments: Available in Bright, Black Phosphated, Galvanized (Silver/Yellow/Olive), with 8-20um thickness. High Precision Manufacturing: Cold drawn seamless tubes with tight tolerances for automotive and hydraulic applications. Diverse Delivery Conditions: Options include BK, BKW, BKS, GBK, NBK to suit specific mechanical property requirements. Comprehensive Testing: Chemical, mechanical, and technological tests performed per standard with EN 10204 3.1 certificates. Customized Steel Grades: Modified steel grades and many other grades available upon specific customer request. OEM Service Available: OEM service is available to meet specific manufacturing and branding requirements. Strict Quality Control: Double inspection by professional controllers ensures only qualified products are delivered.