Frequently Asked Questions (FAQ)
What standards and grades do your steel pipes meet?
Our steel pipes are manufactured to meet API 5L PSL1 (Grades A, B, X42, X52, X56, X60, X65, X70, X80) and ASTM A53/A106 (Grades A, B, C) standards.
What are the available dimensions for these pipes?
We offer an outer diameter range of 1/4’’ to 18’’, wall thickness from 2.24mm to 45.24mm, and standard lengths from 1m to 12m.
What applications are these steel pipes suitable for?
They are widely used in structural piping, petroleum, natural gas industries, drilling, pumping, and various other industrial fields.
Are you a direct factory manufacturer?
Yes, we operate a direct production facility equipped with 4 pre-galvanized lines, 8 ERW steel pipe lines, and 3 hot-dipped galvanized process lines.
What patents do you hold for pipe designs?
We have applied for and received 3 distinct patents, specifically covering Groove pipe, Shoulder pipe, and Victaulic pipe designs.
How close is the factory to major transportation hubs?
Our manufacturing facility is located in Tianjin, China, which is situated just 40 kilometers from Xingang port, the largest port in Northern China, ensuring fast and efficient logistics.
Minjie Steel
