High-Strength & Quenched-and-Tempered Plate · high-strength plate for mobile crane booms, concrete pump trucks, mining and excavator structures, hydropower penstocks, and heavy lifting equipment
1.1 This specification covers high-strength quenched and tempered alloy steel plates intended for use in fusion welded boilers and other pressure vessels. 1.2 This specification includes a number of grades as manufactured by different producers, but all having the same mechanical properties and general characteristics. 1.3 The maximum thickness of plates furnished under this specification shall be as follows: Maximum Plate Thickness by Grade Grade Thickness A, B1.25 in. [32 mm] H, S2 in. [50 mm] P4 in. [100 mm]…
Specification text excerpt, reproduced for reference. Read the full ASME SA-517/SA-517M text →
| Elements | Grade B |
|---|---|
| Carbon: / Heat analysis / Product analysis | 0.15-0.21 / 0.13-0.23 |
| Manganese: / Heat analysis / Product analysis | 0.70-1.10 / 0.64-1.10 |
| Phosphorus, max | 0.025 |
| Sulfur, max | 0.025 |
| Silicon: / Heat analysis / Product analysis | 0.15-0.35 / 0.13-0.37 |
| Nickel: / Heat analysis / Product analysis | ... / ... |
| Chromium: / Heat analysis / Product analysis | 0.40-0.65 / 0.36-0.69 |
| Molybdenum: / Heat analysis / Product analysis | 0.15-0.25 / 0.12-0.28 |
| Boron | 0.0005-0.005 |
| Vanadium: / Heat analysis / Product analysis | 0.03-0.08 / 0.02-0.09 |
| Titanium: / Heat analysis / Product analysis | 0.01-0.04 / 0.01-0.05 |
| Titanium: / Heat analysis / Product analysis / Zirconium: / Heat analysis / Product analysis | ... / ... |
| Copper: / Heat analysis / Product analysis | ... / ... |
| Columbium (Niobium), max: / Heat analysis / Product analysis | ... / ... |
Limits as specified in ASME SA-517/SA-517M. Where the standard sets different values by thickness or product analysis, each band is shown separately.
| Property | 2.50 in. [65 mm] and Under |
|---|---|
| Tensile strength, ksi [MPa] | 115-135 (795-930) |
| Yield strength, min, ksi [MPa] | 100 (690) |
| Elongation in 2 in. [50 mm], min, %A: / Reduction of area, min, %: / Rectangular specimens / Round specimens | 16 / 35 / 45 |
Mechanical requirements for the thickness ranges shown. Impact testing is carried out at the temperature specified for the grade.
A517 Gr.B is normally specified for mobile crane booms, concrete pump trucks, mining and excavator structures, hydropower penstocks, and heavy lifting equipment.
We supply it cut to size by plasma, laser or waterjet, with edges machined or flame-cut to your drawing, and can deliver in the heat-treatment condition your fabrication procedure requires.
Quenched and tempered, or TMCP with accelerated cooling, depending on grade and thickness. Low-hydrogen cutting and welding guidance is supplied with each lot.
UT to EN 10160 with tight acceptance levels; Z-direction testing to EN 10164; Low-hydrogen cutting and welding guidance supplied; EN 10204 3.1 / 3.2 mill test certificate
Seaworthy packing — bottom skids, steel strapping, VCI film and edge protection — is standard for sea freight. Container loading plans with piece weights are issued before shipment.
Send the grade or the standard you specify, the thickness range, quantity and destination port. We reply with price, lead time, delivery term and the applicable certificate within 12 hours (Mon–Sat, GMT+8).
