Chrome Moly Steel Pipes

Chromoly pipe includes multiple grades. 4130 chromoly pipe is mainly for machinery & oilfield, while A335 series for high temperature & high pressure service.

4130 Chromoly Pipe / 4130 Chrome-Moly:

• Other names: 4130 Alloy Pipe / SAE 4130 / AISI 4130, UNS G41300, 25CrMo4 / 1.7218, SCM430, 30CrMo.

• Implementation Standards: ASTM A519 / SA519 (for seamless mechanical tubing), ASTM A29/A29M (for general use of bars/pipes), API 5CT (for oil well tubing: L80, R95, P110), NACE MR0175 (hydrogen sulfide resistant), AMS-T-6736 (aerospace), DIN 17350, JIS G4404, GB/T 1229, ISO 683/18.

Chrome Moly Steel Pipes:

• Other names: Chrome Moly Pipe / Chrome-Moly / Cro-Moly / CrMo Pipe, P-Grade Alloy Pipe / P-Series Pipe, High Temperature Alloy Pipe / Ferritic Alloy Pipe, 2.25Cr-1Mo Pipe / 1.25Cr-0.5Mo Pipe.

• Implementation Standards: ASTM A335 / ASME SA335 (Seamless Tubes for High Temperature and High Pressure: P5, P9, P11, P22, P91, P92), ASTM A213 / ASME SA213 (Boiler/Heat Exchanger Tubes: T11, T22, T5, T9), EN 10216-2, JIS G3462.

4140 Chromoly Pipe:

Our 4140 steel pipes are commonly used in demanding applications such as oil and gas, automotive, and heavy machinery. They conform to ASTM A519 standards and are available in various sizes and heat treatments. We supply A519 4140 seamless machine steel pipes globally for use in hydraulic cylinders, drill collars, and structural components.

Chrome Pipe:

We supply two main types of chrome pipe:

1. Chrome-Moly alloy pipe (Cr-Mo) for high-pressure and high-temperature services

2. Chrome-plated steel pipe with a hard, mirror-like surface for decoration and wear resistance.

Both are available in various standards, grades, and sizes. Get a quick quote for your exact application.