Drill String Cross-over Sub uses AISI4145H chromium-molybdenum steel, execute API specification.We can produce the same-dia type, reducers type and L-type three types, the screw can be cold thread rolling, copper or phosphate treatment.
GB/T 18254 GCr15SiMn stainless steel belongs to bearing stell. Compared with GB/T 18254 GCr15, GCr15SiMn has better abrasive resistance. GCr15SiMn round bars can be used for manufacturing large size bearing,running pulley and so on.
The material 50CrMoV13-15 has higher hardness and red rigid under high temperature to keep high hardness, high wear resistance and appropriate toughness.
ISO 3183 L450/X65 PSL1 LSAW pipeline is an industrial steel pipe, yield strength and tensile strength is relatively good, ISO 3183 L450/X65 PSL1 LSAW pipeline mainly used in machinery manufacturing, construction, metallurgical industry, agricultural vehicles, agricultural greenhouse, automobile industry, railway, highway guardrail, container rack, furniture, decoration, steel Structure and so on.