ASTM B564 UNS NO8811 CON REDUCER, Forged Nickel-Iron-Chromium Alloy Concentric Reducer for Petrochemical & Cryogenic Industries
Brief Introduction
ASTM B564 NO8811 CON REDUCER is a high-performance nickel-iron-chromium alloy concentric reducer, strictly manufactured in accordance with ASTM B564 standard (Standard Specification for Nickel Alloy Forgings) and made of UNS NO8811 alloy[4]. As a key pipe fitting for connecting pipelines of different diameters, it features a concentric structure with consistent centerlines, ensuring smooth medium flow, minimal flow resistance and no pressure loss. NO8811 alloy is a high-temperature resistant, corrosion-resistant nickel-based alloy, which has excellent ductility even in sub-zero low-temperature environments, and can withstand harsh chemical and saline corrosion[1]. The product is mainly used in high-temperature, low-temperature, corrosive and other harsh industrial piping systems, widely applied in petrochemical, cryogenic, marine, energy and other industries, providing reliable diameter transition and connection support for the safe and stable operation of piping systems.
Chemical Composition Analysis (wt%)
| Material Grade |
Element |
Content Range |
Element |
Content Range |
Element |
Content Range |
| NO8811 Alloy (ASTM B564) |
Ni (Nickel) |
Bal. |
Cr (Chromium) |
19.00-23.00 |
Fe (Iron) |
≤39.50 |
| C (Carbon) |
0.06-0.10 |
Si (Silicon) |
≤1.00 |
Mn (Manganese) |
≤1.50 |
| NO8811 Alloy (ASTM B564) |
P (Phosphorus) |
≤0.045 |
S (Sulfur) |
≤0.015 |
Cu (Copper) |
≤0.75 |
Typical Mechanical Properties
| Mechanical Property |
UNS NO8811 (Forged & Annealed) |
ASTM B564 Standard Requirement |
Test Method |
| Yield Strength (Rp0.2), MPa |
≥240 |
≥207 |
ASTM E8/E8M |
| Tensile Strength (Rm), MPa |
550-700 |
≥485 |
ASTM E8/E8M |
| Elongation (A), % |
≥35 |
≥30 |
ASTM E8/E8M |
| Hardness (HB), Brinell |
140-180 |
≤200 |
ASTM E10 |
| Impact Strength (KV), J (20℃) |
≥80 |
≥60 |
ASTM A370 |
| High-Temperature Creep Strength (593℃), MPa |
≥90 |
≥80 |
ASTM E139 |
Available Tests
| Test Type |
Standard |
| Chemical Composition Analysis (PMI) |
Spectrometer (XRF/OES), ASTM E1019, ASTM B564 |
| Tensile & Impact Test |
ASTM E8/E8M, ASTM A370, Charpy V-Notch (Low/Room Temperature) |
| Hardness Test |
ASTM E10 (Brinell), ASTM E18 (Rockwell), Vickers |
| Corrosion Resistance Test |
ASTM B117 (Salt Spray), Intergranular Corrosion Test, High-Temperature Oxidation Test |
| Non-Destructive Testing (NDT) |
UT (Ultrasonic), MT (Magnetic Particle), PT (Liquid Penetrant), RT (Radiographic Testing) |
| Hydrostatic/Pneumatic Pressure Test |
ASTM B564, ASME B16.9, Pressure Test for Forged Pipe Fittings (1.5×Working Pressure) |
| Dimensional & Visual Inspection |
ASTM B564, ASME B16.9, CMM, Gauge Inspection, Surface Finish Test |
| Material Test Certificate (MTC) |
EN 10204 3.1/3.2, ASTM B564 |
| High-Temperature Creep Test |
ASTM E139, ASTM B564 High-Temperature Performance Test Standard |
| Forging Quality Test |
Metallographic Inspection, Internal Defect Detection, ASTM B564 Forging Requirement |
Product Application Scope
| Industry Field |
Typical Applications (Consistent with the title) |
| Petrochemical Industry (Core Field) |
Petroleum refining pipelines, chemical reaction equipment pipelines, oil and gas transmission pipelines, catalytic cracking system pipelines, corrosive medium transmission pipelines[1] |
| Cryogenic Industry (Core Field) |
Cryogenic storage and transportation pipelines, low-temperature fluid transmission pipelines, liquefied natural gas (LNG) pipelines, cryogenic equipment connecting pipelines[1][8] |
| Marine Industry |
Marine pipeline diameter transition, offshore oil and gas development pipelines, marine corrosive environment pipeline fittings[3] |
| Energy Industry |
Thermal power plant high-temperature steam pipelines, nuclear power auxiliary pipelines, solar thermal power generation system pipelines[1] |
| Chemical Industry |
Chemical medium transmission pipelines, reaction kettle connecting pipelines, acid-base corrosive medium pipelines, organic synthesis equipment pipelines |
| Other Fields |
Pharmaceutical equipment high-purity pipelines, food processing corrosion-resistant pipelines, high-temperature and low-temperature comprehensive environment pipeline projects |
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