Hastelloy B-3 Round Rod

Chemical Composition

Chromium sits deliberately between 1.0 and 3.0% in this round rod, and that addition is what separates the UNS N10675 window from the earlier nickel-molybdenum grades. Consequently, molybdenum holds 27.0–32.0% while carbon stops at 0.01%, so the nickel-plus-molybdenum total of this round rod lands between 94.0 and 98.0%.

For every element measured against its B335 limit behind this round rod, open the composition breakdown kept on the Hastelloy B-3 material page.

Mechanical Properties

Minimum room-temperature values below come from the rod table of ASTM B335 for UNS N10675. Consequently, the ordered state and the section size govern final acceptance of Hastelloy B-3 round rod.

• ASTM B335 carries this grade inside a scope that reaches five nickel-molybdenum numbers, and its rod title means the table speaks in diameters from 7.94 mm through 88.9 mm. Besides, the hardness cell printed beside N10675 in Table 2 stands empty, so no hardness acceptance figure exists for us to quote. Consequently, work above that diameter window moves onto the ASTM B564 forging route, and we agree the test position there instead of assuming it.

Physical Properties

Reference data places the density of this round rod at 9.22 g/cm³, with a melting range that closes near 1418 °C. Moreover, the annealed matrix leaves this round rod essentially non-magnetic, and its elastic modulus settles near 216 GPa.

Meanwhile, the physical properties table on the Hastelloy B-3 material page holds the conductivity and expansion figures behind this round rod.

Heat Treatment

The water-quenched anneal is the specification-defining step behind this Hastelloy B-3 round rod, because Ni3Mo forms close to 650 °C and only a rapid quench after 1066 °C restores the corrosion resistance. Moreover, a section strained past roughly 7% at the outer fibre returns to that anneal before it can go back into a weld.

Standards

ASTM B335 governs this round rod under a title that names nickel-molybdenum rod, and the ASTM International document splits its two size clauses by delivery surface. Specifically, pickled or mechanically descaled stock runs below 19.05 mm while ground or turned stock runs above it. Therefore, the rod window for this round rod closes at 88.9 mm and heavier sections change document.

Finally, the full standards list on the Hastelloy B-3 material page adds the plate, tube, fitting and flange documents plus the Chinese designation behind this round rod.

Dimensions

Dimensions of Hastelloy B-3 round rod follow the route, the document and the order quantity. Therefore, typical supply ranges sit in the table below, so please confirm your sizes in the inquiry.

Available sizes of this Hastelloy B-3 round rod depend on the route, the document, the state and the lot size. Please confirm the size, section and length you need for this round rod in the inquiry.

The small end of the B335 window is where drawn straightness matters more than load capacity, and where this grade still has to hold its analysis. Therefore, we quote this round rod by diameter, condition and cut length rather than by weight alone.

Surface Finishes

The surface you order decides how this round rod behaves once it reaches a hydrogen chloride synthesis unit, an absorption tower or an acid regeneration loop. Moreover, most stock of this round rod leaves the yard solution annealed and pickled. Therefore, we confirm the finish and the straightness band on this Hastelloy B-3 round rod before we write the offer.

In addition, the surface finishes table recorded on the Hastelloy B-3 material page lists the remaining conditions quoted for this round rod.

Related forms from the same heat cover Hastelloy B-3 Square Bar, Hastelloy B-3 Threaded Rod and Hastelloy B-3 Welding Wire when your round rod order needs them.