The chemistry of grade 4140 seamless pipe manifests good overall alliances of properties such as toughness, strength, fatigue strength and wear resistance as well. A heat treatment is carried out on the components for the purpose of improving its mechanical properties. Furthermore, this alloy has self-scaling properties, which is an important characteristic for 4140 alloy steel pipe. The resistance to scaling would effectively lower the cost of treatment. Considered to be a mechanical tube, the aisi 4140 steel pipe is produced by either cold finishing or by means of hot finishing, which is usually cast in ingots or if required, strand cast. Once the pipe has been hot worked, it could be cold finished, and finally, they are coated with oil prior to being formed. Oiling the surface of ASTM A519 Grade 4140 Pipe efficiently retards the collection of dust.
AISI 4140 Pipe standard specifications
Many sizes and wall thickess of ASME SA 519 Grade 4140 Pipe.
| AISI 4140 Pipe Standard | AISI 4140, ASTM A519 (with IBR Test Certificate) |
| AISI 4140 Pipe Size | 1/2" NB to 36" NB |
| AISI 4140 Pipe Thickness | 3-12mm |
| AISI 4140 Pipe Schedules | SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, All Schedules |
| AISI 4140 Pipe Origin | European, Japanese, Korean, US, Russian, Indian (Strictly No Chinese Material) |
| AISI 4140 Pipe Tolerance | Cold drawn pipe: +/-0.1mm
Cold rolled pipe: +/-0.05mm |
| Craft | Cold rolled and Cold drawn |
| AISI 4140 Pipe Type | Seamless / ERW / Welded / Fabricated |
| AISI 4140 Pipe available in Form of | Round, Square, Rectangular, Hydraulic Etc. |
| AISI 4140 Pipe Length | Standard Double & In Cut length also. |
| AISI 4140 Pipe End | Plain End, Beveled End, Treaded |
| Specialized in | Large Diameter AISI 4140 Pipe |
| Additional Testing | NACE MR 0175, NACE TM0177, NACE TM0284, HIC TEST, SSC TEST, H2 SERVICE, IBR, etc. |
| Application | Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service |
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