Hastelloy C276 Plate
A Hastelloy C276 plate is a flat-rolled semi-finished metal product made from a premium nickel-molybdenum-chromium superalloy.It is globally recognized as the industry standard for extreme corrosion resistance against both oxidizing and reducing chemical media. Because of its specialized chemical composition,it maintains its physical structural integrity where standard stainless steel would instantly degrade or fail.
Key Performance Strengths
- Universal Corrosion Resistance:
Survives both highly oxidizing environments (like ferric chloride) and highly reducing media (like sulfuric acid). - Pitting and Crevice Defense:
High molybdenum and tungsten content prevents localized pinhole punctures in stagnant,chloride-rich liquids. - Stress Corrosion Cracking Immunity:
The high nickel base makes the alloy virtually immune to catastrophic cracking under mechanical stress in hot chloride solutions. - Excellent As-Welded Performance:
Low carbon content prevents carbide precipitation during welding, meaning heat-affected zones retain full corrosion resistance without post-weld annealing. - High-Temperature Stability:
Retains mechanical strength,oxidation resistance, and structural integrity up to 1900°F (1038°C) in non-sulfur environments.
Applications of Hastelloy C276 Plate
- FGD Scrubbers
- Chemical Reactors
- Heat Exchangers
- Downhole Equipment
- Bleach Plants
- Pharmaceutical Tanks
- Acid Coolers
- Distillation Columns
- Waste Incinerators
- Marine Hardware
- Industrial Evaporators
- Geothermal Separators
- Chlorine Processing
- Fertilizer Equipment
We offer Hastelloy C276 plates and sheets in thicknesses of 0.5, 0.7, 1.0, 1.5, 2.0, 2.5, 3.0, 4.0, and 5.0.We offer not only stainless steel plates and sheets but also plates made of Hastelloy,Incoloy,Inconel,Monel,and other alloys.Our products comply with ASTM A240,EN 10204,ISO 9001,PED 2014/68/EU,CE,and other standards.With over a decade of experience in manufacturing and import/export,we are your best wholesaler in China.
Chemical Composition of Hastelloy C276 Plate
| Ni | Mo | Cr | Fe | W | Co | Mn | V | C | Si | P | S |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Balance | 15.0 – 17.0 | 14.5 – 16.5 | 4.0 – 7.0 | 3.0 – 4.5 | ≤ 2.50 | ≤ 1.0 | ≤ 0.35 | ≤ 0.01 | ≤ 0.08 | ≤ 0.04 | ≤ 0.03 |
Can C276 Composition Change During Welding?
The base plate composition remains stable,but using the wrong filler metal can alter the weld pool chemistry.To match the plate’s performance,fabricators must use Alloy C276 filler wire (ERNiCrMo-4) to prevent elemental dilution at the joint.
What Role Does Tungsten Play in The Composition?
Tungsten works synergistically with molybdenum.It significantly amplifies the alloy’s resistance to localized pitting and crevice corrosion in severe chloride-bearing environments,such as stagnant seawater or bleach solutions.
Hastelloy C276 Standards & Equivalent Designations
| Hastelloy C276 Alloy | |
|---|---|
| Standard / System | Equivalent Designation |
| UNS Number | UNS N10276 |
| DIN / German Werkstoff | W.Nr. 2.4819 |
| EN Chemical Name | NiMo16Cr15W |
| JIS | NW 0276 |
| Generic Trade Name | Alloy C276 |
| Haynes Trademark | HASTELLOY® C-276 |
- ASTM B575
- ASME SB575
- ASTM B906
- ASME SB906
- NACE MR0175
- NACE MR0103
- ISO 15156
- EN 10204 Type 3.1
- EN 10028-7
- DIN 17750
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Mechanical Properties of Hastelloy C276 Plate
| Property | Value (Metric) | Value (Imperial) |
|---|---|---|
| Tensile Strength | ≥ 690 MPa | ≥ 100 ksi |
| Yield Strength | ≥ 283 MPa | ≥ 41 ksi |
| Elongation | ≥ 40% | |
| Hardness | ≤ 100 HRB | |
Elastic and Shear Modulus
- Modulus of Elasticity (Tension):205 GPa (29.8 × 10⁶ psi)
- Modulus of Rigidity (Shear):79 GPa (11.4 × 10⁶ psi)
- Poisson’s Ratio:0.307
Key Performance Impact
The 40–60% typical elongation rating makes the heavy plate exceptionally ductile,allowing it to be severely cold-formed,bent,and rolled without fracturing.
It cannot be hardened via heat treatment.It gains structural strength exclusively through cold working,which will simultaneously elevate its hardness and yield strength.
It retains exceptional fracture toughness and impact resistance even at cryogenic temperatures,preventing brittle structural failure in freezing environments.
Our Advantages in Hastelloy C276 Plate
100% Dual-Certified
We source our raw materials exclusively from world-class steel mills. Each sheet comes with a comprehensive EN 10204 3.1 factory test certificate.
It also complies with the ASTM B575/ASME SB575 and NACE MR0175/ISO 15156 safety standards for sour gas.
It also complies with the ASTM B575/ASME SB575 and NACE MR0175/ISO 15156 safety standards for sour gas.
High-Precision Advanced Cutting
Cold cutting of materials up to 4 inches thick preserves the structural integrity of the alloy, eliminates the HAZ,and minimizes the risk of microcracks.We can process heavy-duty industrial plates quickly and cost-effectively while maintaining strict control over edge perpendicularity.
Extensive In-Stock Thickness Range
We maintain a stock of sheet metal in a variety of standard and oversized dimensions.Upon request,we can supply matching C276 alloy welding wire (ERNiCrMo-4) along with your sheet metal order,helping you avoid delays associated with external procurement.
Stringent Quality Control Protocol
Each steel plate undergoes handheld X-ray fluorescence testing prior to shipment to verify that its chemical composition meets the specified standards.Additionally,UT is performed in accordance with the ASTM A578 standard to ensure that the interior of the high-pressure vessel walls is completely sound.
FAQs About Hastelloy C276 Plate
No.C276 is an austenitic alloy that cannot be hardened by heat treatment.It can only be hardened and strengthened through cold working.Annealing at 2050°F (1121°C) followed by a rapid quench is used only to soften the material and restore maximum corrosion resistance after heavy processing.
Because the plate features an ultra-low carbon content.During the welding process,this low carbon limit prevents the formation of corrosive chromium-carbide precipitates along the grain boundaries.The HAZ remains completely stable and resistant to intergranular attack in the as-welded condition.
Genuine products come with an MTC,which is a legal document detailing the specific furnace number,chemical composition,and mechanical property test results.Upon receipt of the goods,you can use a handheld XRF analyzer to analyze the material composition and immediately verify its metallurgical properties without damaging the steel plate.
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- +86 577 8551 1171
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