Seamless Steel Pipes
Seamless Carbon Steel for Industrial Piping Systems
Seamless steel pipes are produced without a longitudinal welded seam. They are specified for applications requiring defined chemical composition, mechanical properties, dimensional tolerances and operating conditions.
Steel Grades & Mechanical Properties
Reference: ASTM A106/A106M
| Grade | Minimum Yield Strength | Minimum Tensile Strength |
|---|---|---|
| Grade A | 205 MPa | 330 MPa |
| Grade B | 240 MPa | 415 MPa |
| Grade C | 275 MPa | 485 MPa |
Chemical Composition
Reference Example: ASTM A106 Grade B
| Element | Reference Requirement |
|---|---|
| Carbon (C) | 0.30% maximum |
| Manganese (Mn) | 0.29–1.06%* |
| Silicon (Si) | 0.10% minimum |
| Phosphorus (P) | 0.035% maximum |
| Sulfur (S) | 0.035% maximum |
The complete chemical specification includes additional requirements and conditional manganese allowances. The contractual standard edition must be checked before these figures are used as acceptance limits.
Dimensions & Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturing Method | Seamless |
| Outside Diameter | As specified |
| Wall Thickness / Schedule | As specified |
| Length | As agreed |
| End Preparation | Plain or beveled, where applicable |
| Surface Condition | As specified |
| Dimensional Tolerances | According to applicable standard |
Inspection & Testing
Inspection may include chemical analysis, tensile testing, dimensional examination, hydrostatic testing or permitted alternative examination, and material identification.
Applications
Steel slabs are primarily used as feedstock for: • Industrial Process Piping • Power Generation Facilities • Specified High-Temperature Piping Systems • Industrial Equipment • Request a Technical Offer • Specify your grade, outside diameter, wall thickness, length, quantity, destination and required inspection documentation.