Dactron Pipe
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ASME SA213 T91 Seamless Alloy Steel Tubes are specialized components designed for high-performance applications in boilers, superheaters, and heat exchangers. These tubes are engineered to ensure leakage-free flow for both liquefied and gaseous materials. Utilizing advanced machinery and precision technology, these seamless tubes undergo rigorous quality testing to eliminate flaws and ensure structural integrity.
Following the ASME/ASTM A213/SA213 specifications, the standard sizing for these alloy and stainless tubes typically ranges from:
| Grade | C | Si | Mn | P/S Max | Cr | Mo | Ni Max | V | Al Max | Nb | N |
|---|---|---|---|---|---|---|---|---|---|---|---|
| T91 | 0.07~0.14 | 0.20~0.50 | 0.30~0.60 | 0.02 | 8.0~9.5 | 0.85~1.05 | 0.4 | 0.18~0.25 | 0.015 | 0.06~0.10 | 0.03~0.07 |
| Grade | Tensile Strength (T.S) | Yield Point (Y.P) | Elongation | Hardness |
|---|---|---|---|---|
| T91 | ≥ 585MPa | ≥ 415MPa | ≥ 20% | 250HBW (25HRB) |
Products are packed in bundles or plywood boxes, wrapped in plastic for moisture protection, ensuring sea-worthy delivery. Marking follows Specification A 1016/A 1016M, including standard, grade, size, heat number, and finishing method (hot or cold).
