Technics: forging
Connection: Female and male
Shape: pipe
Product: API crossover sub
Material: 40CRMNMO
Weight: 10~50kg
Type: pin-pin, box-box, pin-box
Thread type: Reg, FH, IF, NC, etc
Standard: API
MOQ: 3 Pieces
Drilling subs are very short pieces of drill pipe which are used to connect and switch in drills. They are important integral wireline core drilling parts of every drilling. Our products use the international standard material. Heat treatment and hardening treatment of the thread surface are adopted to keep the long service life of the products.
Drilling subs with foreign standard sizes are all available according to the client's requirements.
Q1: What materials are used for the API crossover subs?
Our crossover subs are manufactured using high-quality 40CRMNMO steel, ensuring durability and high performance in oilfield applications.
Q2: Are different thread types available for these drilling subs?
Yes, we provide various thread types including Reg, FH, IF, and NC to meet different connection requirements.
Q3: How do you ensure the service life of the products?
We apply professional heat treatment and surface hardening on the threads to maintain structural integrity and extend the product life.
Q4: Can these subs be customized?
Yes, drilling subs can be customized in terms of sizes, colors, and specific foreign standard requirements based on the client's needs.
Q5: What is the typical packaging for international shipping?
All products are securely packed in wooden boxes to ensure safe transport via container and prevent damage during delivery.
Q6: What certifications do your oilfield products follow?
All products are manufactured strictly in accordance with the API Standard to ensure compliance with global oilfield regulations.