API 5DP Pipe Grade S135

In the manufacturing process of API 5DP Grade S135 pipe, several critical process parameters must be strictly controlled to ensure its performance:

Material Selection: The pipe is made from high-quality alloy steel, such as E75, which is chosen for its excellent strength and ductility.

Yield and Tensile Strength: The pipe must meet minimum yield strength of 517 MPa and a minimum tensile strength of 724 MPa to ensure it can withstand the pressures and stresses encountered in drilling operations.

Wall Thickness and Size Range: API 5DP Grade S135 pipes are produced in a range of sizes from 2 3/8" to 5 1/2" with varying thicknesses to suit different drilling requirements.

Heat Treatment: Proper heat treatment is essential to achieve the desired mechanical properties, including hardness and toughness.

Thread Quality: The pipe threads must be precisely formed and meet specific tolerances to ensure a secure connection with other drill string components.

Non-Destructive Testing (NDT): Ultrasonic testing and other NDT methods are used to inspect the pipe for any internal or surface defects that could compromise its integrity.

Size: OD: 60.32mm ~ 168.28mm; WT: 7.11mm ~ 9.19mm; Length: R1, R2, R3

Standard & Grade: API 5DP E 75/X 95/G 105/S 135

Ends: Beveled, Square Cut

FAQ

1. How can I pay?

A: After you confirm our Proforma Invoice (PI), we will request payment. Our most commonly used methods are T/T (HSBC Bank), PayPal, and Western Union.

2. Do you accept small orders?

A: Yes, we are willing to cooperate with every customer.

3. Do you have any product inspection procedures?

A: Yes, all our steel pipes are tested before packaging, including tests for chemical composition, mechanical properties, eddy currents, and non-destructive testing. We also support third-party inspections.

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