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Nickel Alloy – Hastelloy C-276, UNS N10276 Introduction

Nickel Alloy – Hastelloy C-276, UNS N10276 Introduction

Time:2022-03-20 Source:WUXI JIANUO SPECIAL STEEL CO.

Steel grades: Hastelloy C-276 / N10276 / 2.4819 / NS334 / CW12MW

Features and Applications:


* A Ni-Mo-Cr-W alloy material with very superior corrosion resistance and is often considered a universal corrosion resistant alloy.

* Despite its brittle transformation due to precipitation phase precipitation at high temperature, the material has excellent high temperature strength and oxidation resistance.

* C276 can prevent the formation of intergranular precipitates in the weld heat affected zone and can meet the needs of most chemical engineering under welding conditions.


* C276 has similar welding technology to austenitic stainless steels and other nickel-based alloys, but special attention should be paid to the composition of C and Si in the production of this material. If the C and Si composition is too high for the material is very unfavorable.


* Widely used in chemical industry, petroleum refining, natural gas desulfurization, pulp and paper and other special industries.

* Natural gas desulfurization plants.

* Can be used in wet chlorine, hypochlorite and chlorine dioxide environments.

Applicable standards:

ASTM B 622/B 751/B775/B 829/ASME SB 622/SB751/SB775/SB829

Chemical composition:

C Si S Mn Ni P V W Co Mo Cr Fe
0.01 max 0.08 max 0.03 max 1.0 max. 剩余 0.04 max 0.35 max 3.0 ~4.5 2.5 max 15.0 ~17.0 14.5 ~16.5 4.0 ~


Density and coefficient of linear expansion:

Density 8.89 g/cm3
Temperature 24~100°C
coefficient of linear expansion 12.20 μm/m •°C

Mechanical properties:

Status Tensile Strength


Yield strength (0.2% residual deformation)

.Ksi (Mpa)min

Elongation (%)min
Annealing 100(690) 41(283) 40