1)api 5l carbon seamless steel pipe 2) OD 19.05-508mm WT: 1-60mm 3) ASTM , DIN, JIS, EN, API, BS Standard 4) SGS, ... Blasting.Product DescriptionApplication: For high, middle, low pressure boiler and pressure purpose Production Standard, Grade, Steel No: ASTM A178 Grade ... Surface treatment: Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting. seamless round pipe api 5l carbon seamless steel pipe