Hastelloy C276 Bar ASTM B574 N10276 Round Bar

High-Corrosion-Resistant Nickel Alloy Round Bars for Severe Service

Hastelloy C276 round bars, manufactured in accordance with ASTM B574 UNS N10276, are nickel-chromium-molybdenum alloy bars designed for the most aggressive corrosive environments. With outstanding resistance to pitting, crevice corrosion, stress corrosion cracking, and mixed acids, C276 bars are widely used in chemical processing, oil & gas, offshore, pollution control, and pharmaceutical industries.

ASTM B574 N10276 round bars are supplied in hot-worked or cold-finished condition, ensuring excellent mechanical performance and fabricability.

We are the professional exporter and supplier of Hastelloy C276 Bar ASTM B574 N10276 Round Bar in China

What Is ASTM B574?

ASTM B574 is the standard specification for nickel alloy bars, rods, and wire intended for corrosion-resistant and high-performance applications. The standard defines:

• Chemical composition

• Mechanical properties

• Heat treatment condition

• Dimensional tolerances

• Testing and inspection requirements

ASTM B574 covers alloys such as UNS N10276 (Hastelloy C276), ensuring consistent quality for critical applications.

UNS Number N10276  Hastelloy C276 is a nickel-molybdenum-chromium superalloy  designed for outstanding corrosion resistance in a wide range of severe environments. This alloy is non magnetic, single phase and has good strength and ductility.

Excellent resistance to ferric and cupric chloride, mineral acids, chlorinated environments, formic and acetic acids, sea water and brine. Resistant to oxidation at temperatures up to 1040°C. It is widely used in chemical, petrochemical and oil industries.

• ABTN | ASTM | SAE | AISI: Alloy C276 | ASTM B574 | UNS N10276
• DIN | WNr: DIN 17744 | WNr 2.4819
• Chemical composition of UNS N10276

ASTM-B574-N10276-C276-Round-Bar

ASTM B574 Hastelloy C276 round bar Grade Specification

STANDARD	WERKSTOFF NR.	UNS	JIS	EN	GOST	OR
Hastelloy C276	2.4819	N10276	NW 0276	NiMo16Cr15W	ХН65МВУ	ЭП760

Chemical Composition UNS N10276  Hastelloy C276 round bar

Grade

C

Mn

Si

Co

P

Fe

Mo

Ni

Cr

S

W

V

Hastelloy C276

0.010 max

1 max

0.08 max

2.5 max

0.04 max

4 – 7

15 – 17

Bal

14.5-16.5

0.03 max

3.0-4.5

0.35 max

 

Mechanical Properties UNS N10276 Round bar

Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
8.89 g/cm3	1370 °C (2500 °F)	Psi – 1,15,000 , MPa – 790	Psi – 52000 , MPa – 355	40%

astm-b574-18

Standard Specification for Low-Carbon Nickel-Chromium-Molybdenum, Low-Carbon Nickel-Molybdenum-Chromium, Low-Carbon Nickel-Molybdenum-Chromium-Tantalum, Low-Carbon Nickel-Chromium-Molybdenum-Copper, and Low-Carbon Nickel-Chromium-Molybdenum-Tungsten

This specification²covers rod of low-carbon nickelchromium-molybdenum alloys (UNS N10276, N06022, N06035, N06455, N06058, and N06059)*, low-carbon nickelmolybdenum-chromium-tantalum (UNS N06210), low-carbon nickel-chromium-molybdenum-copper alloy (UNS N06200), and low-carbon nickel-chromium-molybdenum-tungsten (UNS N06686) as shown in Table 1, for use in general corrosive service.The following products are covered under this specification: Rods 5⁄16 to 3⁄4 in. (7.94 to 19.05 mm), exclusive, in diameter, hot or cold finished, solution annealed and pickled, or mechanically descaled.Rods 3⁄4 to 31⁄2 in. (19.05 to 88.9 mm), inclusive, in diameter, hot or cold finished, solution annealed, ground or turned. Rods 1⁄4 to 3 1⁄2 in. (6.35 to 88.9 mm), inclusive, in diameter, solution annealed, cold finished, as cold finished, ground or turned (N06059 and N06686 only, see Table 2 and Table 3).

China Hastelloy C276 Round bar Material Specification:

ASTM B574/ ASME SB574 Inco C276 Round Bar

Grade: Hastelloy, Hastelloy B2 (UNS N10665), Hastelloy X, Hastelloy C-4 (UNS No. N06455), Hastelloy C-276 (UNS No. N10276), Hastelloy C 22 (UNS No. N06022), Hastelloy C 2000, Hastelloy B-3 (UNS N10675)

Size Range: 15NB to 300NB

Length: 100 mm To 3000 mm Long & Above

Heat Treatment

ASTM B574 Hastelloy C276 round bars are supplied in solution annealed condition, followed by rapid cooling. Proper heat treatment restores corrosion resistance and ensures a uniform microstructure.

---

Testing & Inspection

ASTM B574 UNS N10276 bars undergo strict quality control, including:

• Chemical analysis

• Tensile testing

• Dimensional inspection

• Surface inspection

• Optional NDT (UT)

• Certification: EN 10204 3.1 / 3.2

Hastelloy C276 bars manufactured to ASTM B574 UNS N10276 provide unmatched corrosion resistance and mechanical reliability in the most aggressive service environments. With excellent performance in mixed acids and chloride-containing media, C276 round bars are a trusted solution for critical chemical, offshore, and industrial applications.

Download ASTM_B574_N10276_Round_Bar_Specification