655M13 is a 3.25% nickel-chromium high hardenability case hardening steel, characterised by high core strength, excellent toughness and fatigue resistance, with case hardnesses up to 62HRC when carburised, hardened and tempered.
KUNFENG steel always provide ASTM A671 CJ109 LSAW steel pipeline,CJ109 LSAW steel pipeline and supply all of steel which is under ASTM A671 specification.
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