Project Description

  • Inconel C276 N10276 2.4819 Corrosion Resistance Alloy CRA Pipe

Commitment to You

Fushun Metal Co., Ltd. is one of the largest high quality seamless steel tube (both hot finished and cold drawn, cold rolled) manufacturers in China. We are specialized in producing all kinds of high-precision, middle and thick wall seamless steel tubes.

We produce of various carbon/alloy/stainless/nickel steel seamless steel pipes, mainly produces various high-end steel pipe products (OD 10-850mm; WT 1-150mm) such as Thermal power pipes, Nuclear power pipes, Petrochemical & Refinery pipes, Mechanical pipes, Oil & gas pipes,   gas cylinder pipes, etc.

Inconel C276 N10276 2.4819 Corrosion Resistance Alloy CRA Pipe

C276 (UNS N10276) is a cold hardened nickel-based alloy intended for the most extreme well conditions up to 450°F.

In addition to its exceptional corrosion resistance under the most severe conditions, higher strengths may be achieved with C276 than other nickel alloys. It is therefore used for downhole tubular components, packers, and other subsurface equipment under the most extreme environmental conditions found in high-pressure, high-temperature (HPHT) wells, saltwater Injection wells, and Acid Gas Injection (AGI) wells. However, all environmental factors, including H2S, CO2 , temperature, pH, and chloride concentration, should be considered before final material selection.

The alloy is classified in MR0175/ISO15156 as a type 4e alloy, with no restrictions to a partial pressure of H2S below 400°F and resistant to 1000 psi H2S at 450°F.

Hastelloy C276 alloy (UNS N10276) was the first wrought, nickel-chromium- molybdenum material to alleviate concerns over welding (by virtue of extremely low carbon and silicon contents). As such, it was widely accepted in the chemical process and associated industries,

ALSO KNOWN AS

  • C-276
    • SMC276®
    • INCONEL® Alloy C-276
    • Hastelloy® C-276
    • W.Nr. 2.4819

Applications

Typical chemical process industry (CPI) applications include reactors, heat exchangers, and columns, marine hardware, Chemical processing components Agrichemical and petrochemical production.

CHEMICAL COMPOSITION

C Cr Ni Fe Mn Si Mo Co P S V W
≤ 0.02 14.5 – 16.5 BAL 4 – 7 ≤ 1 ≤ 0.08 15 – 17 ≤ 2.5 ≤ 0.03 ≤ 0.03 ≤ 0.35 3 – 4.5

MANUFACTURING PROCESS

PROCESS DESCRIPTION
Steel Making Made by electric furnace process or blast furnace followed by Vacuum Oxygen Decarburization (VOD) process or Argon Oxygen Decarburization (AOD) Process
Pipe Making Manufactured by traditional tube manufacturing processes, High strength tubulars should be furnished in cold worked condition
Heat Treatment Solution Annealing Process before final cold drawing

API 5CRA / ISO 13680 Group 2 Category 15-60-16

Grade Yield
Strength
ksi		 Tensile
Strength
ksi		 Elongation
%		 Hardness
HRC		 NACE MR0175/ISO 15156
H2S Sour Service Limits
min max min min max
110 110 140 125 11 35 Table A.14 No limit ≤ 400°F,
Refer to table for temperatures up to 450°F
125 125 150 130 10 37
140 140 160 145 9 38 140 Grade not recommended for sour service
*Non-standard mechanical properties and grades are made available upon agreement.

TYPICAL PHYSICAL PROPERTIES

70°F 200°F 400°F
Density lbs/in3 0.32
Thermal Expansion X10-6/°F 6 6.2 6.7
Elastic Modulus psi x 106 29.8 29 28.3
Poisson Ratio 0.3
Thermal Conductivity Btu/ft h °F 5.9 6.4 7.5
Specific Heat Btu/lb °F 0.1 0.1 0.1

Specification

HASTELLOY C-276 ASTM ASME DIN
Plate sheet and Strip B575 / B906 SB575 / SB906 17750
Seamless, Pipe and Tubing B622 / B829 SB622 / SB829 17751
Welded Pipe and Tubing B626 / B751 B619 / B775 SB626 / SB751 SB619 / SB775 17751
Rod, Bar and Forgings B462 / B564 / B574 SB564 / SB574 17752 / 17753 / 17754

Impact Strength

Type of Test Test Temperature Form Thickness Impact Strength
in mm ft.lbf J
Charpy V-Notch RT Plate 0.394 10 348 472
Charpy V-Notch RT Plate 0.472 12 351 476

Hardness

Form Hardness, HRBW Typical ASTM Grain Size
Sheet 88 3.5 – 6
Plate 88 1 – 5
Bar 86 1 – 5

Welding and Fabrication

HASTELLOY C-276 alloy is very amenable to the Gas Metal Arc GMA/MIG), Gas Tungsten Arc (GTA/TIG), and Shielded Metal Arc (SMA/Stick) welding processes. Matching filler metals (i.e. solid wires and coated electrodes) are available for these processes, and welding guidelines are given in the “Welding and Fabrication” brochure.

HASTELLOY C-276 alloy can be hot forged, hot rolled, hot upset, hot extruded, and hot formed. However, it is more sensitive to strain and strain rates than the austenitic stainless steels, and the hot working temperature range is quite narrow. While cold work does not usually affect the resistance of HASTELLOY® C-276 alloy to general corrosion, and to chloride-induced pitting and crevice attack, it can affect resistance to stress corrosion cracking. For optimum corrosion performance, therefore, the re-annealing of cold worked parts (following an outer fiber elongation of 7% or more) is important.

Experienced 15+ Years

Our ability to purchase materials directly from leading mills at the best possible price will give you the competitive edge. This coupled with a skilled workforce dedicated to embracing the demands of the markets.

We Can Supply Follows Products with High Quality:

  1. Cold Rolled Steel Tube
  2. Cold Drawn Steel Tube
  3. Hollow Bar
  4. Honed Tube
  5. Plated Tube
  6. Plated Bar
  7. Boiler Tube

All Products According Quality Standard Strictly:

  1. ASTM: ASTM A519, ASTM A513.
  2. JIS:JIS G3441, JIS G3445, JIS G3466, JIS G3459.
  3. DIN: DIN1626, DIN1629, DIN2391, DIN2393, DIN2448, DIN2458.
  4. EN: EN10305.
  5. BS: BS6323.

Wide Range of Pipes to Fit Your Industry:

  1. OD from 5mm to 820mm.
  2. Wall Thickness from 0.1 to 100mm.
  3. Length up to 50mtr per pc.

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