Hastelloy C-276 Forged Bar

Chemical Composition

ASTM B574 holds nickel at 57.0% minimum and chromium between 14.5% and 16.5% for this forged bar, with molybdenum at 15.0–17.0% as the leading addition. Moreover, tungsten at 3.0–4.5% reinforces the passive film carried by this forged bar, while carbon at 0.010% maximum and silicon at 0.08% maximum starve the grain-boundary precipitates that embrittle welded joints.

For the complete element-by-element limits, open the composition breakdown held on the Hastelloy C-276 material page for this forged bar.

Mechanical Properties

The minimum room-temperature values below follow the rod and bar table of ASTM B574 for UNS N10276. Consequently, the ordered condition and hardness basis govern final acceptance of Hastelloy C-276 forged bar.

• ASTM B574 sets one solution-annealed condition for rod and bar at these minimums, and its Table 5 carries no hardness requirement at all. Moreover, clause 1.2.3 reaches cold-worked stock from 6.35 to 88.9 mm, where N10276 sits among the listed grades, so drawn and ground bar holds strength above the annealed floor. Therefore, sour-service orders travel with a per-heat hardness record against the 35 HRC ceiling rather than a mill hardness maximum.

Physical Properties

Published references place this forged bar at a density near 8.89 g/cm³ with a melting range of 1325–1370 °C. Moreover, the nickel-rich matrix keeps this forged bar practically non-magnetic at ambient temperature, which suits instrument and sensor assemblies. Besides, the solid-solution structure holds these values across the whole solution-annealed range.

Meanwhile, the physical properties table on the Hastelloy C-276 material page holds the modulus, the thermal expansion and the remaining design values behind this forged bar.

Heat Treatment

The water-quenched anneal is the specification-defining step for this grade, because rapid cooling after 1120–1160 °C restores the corrosion resistance the media demand. In addition, we supply this Hastelloy C-276 forged bar in whichever condition your duty calls for.

Standards

Heavy sections of this forged bar are quoted to ASTM B564, published by ASTM International, whose UNS table lists N10276 for forgings. Moreover, ASTM B462 covers flanges, forged fittings and valve parts of this forged bar for corrosive high-temperature service. Besides, AMS 5750 reaches bars, forgings and flash-welded rings of this grade, while ISO 9725 and DIN 17754 carry the international forging routes.

Finally, the full standards list on the Hastelloy C-276 material page adds the pressure documents, the European designations and the remaining product documents behind this forged bar.

Dimensions

Dimensions of Hastelloy C-276 forged bar follow the manufacturing route, the document and the order quantity. Therefore, the table below lists typical supply ranges, so please confirm your sizes in the inquiry.

Available sizes of this Hastelloy C-276 forged bar depend on route, document, condition and lot size. Please confirm your required forged bar size, section and length in the inquiry.

Forged sections of this grade are quoted to ASTM B564, whose UNS table lists N10276 for forgings, alongside B462 for flanges and valve parts and AMS 5750 for bars, forgings and flash-welded rings. Moreover, ISO 9725 and DIN 17754 carry the international and European forging routes, and sour-service forgings add hardness records to the release papers of this Hastelloy C-276 forged bar.

Surface Finishes

Finish decides how this forged bar behaves across wet chlorine streams, chlorine dioxide bleach plants and FGD scrubbers, and most stock ships solution annealed and pickled so the surface reaches your shop ready for acid service. Specifically, we fix the finish on this Hastelloy C-276 forged bar before the order is released.

Meanwhile, the surface finishes table on the Hastelloy C-276 material page lists the remaining conditions we quote for this forged bar.

Related forms from the same heat cover Hastelloy C-276 Hex Bar, Hastelloy C-276 Round Bar and Hastelloy C-276 Round Rod when your forged bar order needs them.