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Introduction
ASTM A832
/ A832M covers chromium-molybdenum-vanadium alloy steel plates intended for
pressure vessels, boilers, heat exchangers, reactors, and other
high-temperature pressure-retaining equipment requiring excellent strength,
creep resistance, toughness, weldability, and long-term service reliability.
The addition of chromium, molybdenum, and vanadium enhances oxidation
resistance, elevated-temperature strength, creep resistance, and mechanical
stability, making these alloy steel plates suitable for severe operating
environments.
ASTM A832
/ A832M alloy steel plates are extensively used in thermal power plants,
petrochemical plants, oil refineries, fertilizer plants, chemical processing
facilities, industrial boilers, pressure vessels, heat exchangers, and
high-temperature processing equipment. Their outstanding mechanical properties
and resistance to elevated temperatures make them an ideal choice for critical
pressure vessel applications.
The
specification ensures controlled chemical composition, dependable mechanical
properties, superior fabrication characteristics, and long service life for
demanding industrial applications.
Ladhani
Metal Corporation is a manufacturer, supplier, and exporter of ASTM A832 /
A832M Chromium-Molybdenum-Vanadium Alloy Steel Plates, supplying
premium-quality alloy steel plates for pressure vessel, boiler, and heavy
engineering applications worldwide.
Applicable Standard
Standard
Specification: ASTM A832 / A832M
Organization:
ASTM International
Title:
Standard Specification for Chromium-Molybdenum-Vanadium Alloy Steel Plates
This
specification covers chromium-molybdenum-vanadium alloy steel plates intended
for pressure vessels, boilers, and high-temperature engineering applications
requiring excellent strength, creep resistance, and weldability.
Forms of Supply
ASTM A832
/ A832M alloy steel products are supplied in the following forms:
• Alloy
steel plates
• Pressure vessel plates
• Boiler quality plates
• Heavy thickness plates
• Hot rolled plates
• Heat-treated plates
• Cut-to-length plates
• CNC-cut plates
• Flame-cut plates
• Fabrication-ready plates
• Industrial alloy steel plates
• Custom-sized plates
Grades Covered Under
ASTM A832 / A832M
• Grade
21V
• Grade 22V
• Grade 23V
Supply Condition
• Hot
rolled
• Normalized
• Quenched and tempered
• Annealed
• Stress relieved
• Fabrication-ready condition
Surface Finish
• Mill
finish
• Shot blasted finish
• Pickled finish
• Ground finish
• Machined finish (when specified)
Standard Sizes
Plates
Thickness:
6 mm to 200 mm
Width:
1000 mm to 3500 mm
Length:
Up to 12000 mm
Custom
dimensions, flame-cut components, and machined plates are available according
to customer requirements.
Chemical Composition
of ASTM A832 / A832M
|
Element |
Grade 21V |
Grade 22V |
Grade 23V |
|
Carbon
(Heat Analysis) |
0.10–0.15 |
0.11–0.15 |
0.10–0.15 |
|
Carbon
(Product Analysis) |
0.08–0.18 |
0.09–0.18 |
0.08–0.18 |
|
Manganese
(Heat Analysis) |
0.30–0.60 |
0.30–0.60 |
0.30–0.60 |
|
Manganese
(Product Analysis) |
0.25–0.66 |
0.25–0.66 |
0.25–0.66 |
|
Phosphorus,
Max (Heat Analysis) |
0.025 |
0.015 |
0.025 |
|
Phosphorus,
Max (Product Analysis) |
— |
0.020 |
— |
|
Sulfur,
Max (Heat Analysis) |
0.025A |
0.010 |
0.010A |
|
Sulfur,
Max (Product Analysis) |
— |
0.015 |
— |
|
Silicon
(Heat Analysis) |
0.10 |
0.10 |
0.10 |
|
Silicon
(Product Analysis) |
0.13 |
0.13 |
0.13 |
|
Chromium
(Heat Analysis) |
2.75–3.25 |
2.00–2.50 |
2.75–3.25 |
|
Chromium
(Product Analysis) |
2.63–3.37 |
1.88–2.62 |
2.63–3.37 |
|
Molybdenum
(Heat Analysis) |
0.90–1.10 |
0.90–1.10 |
0.90–1.10 |
|
Molybdenum
(Product Analysis) |
0.85–1.15 |
0.85–1.15 |
0.85–1.15 |
|
Vanadium
(Heat Analysis) |
0.20–0.30 |
0.25–0.35 |
0.20–0.30 |
|
Vanadium
(Product Analysis) |
0.18–0.33 |
0.23–0.37 |
0.18–0.33 |
|
Titanium
(Heat Analysis) |
0.015–0.035 |
0.030 Max |
— |
|
Titanium
(Product Analysis) |
0.005–0.045 |
0.035 Max |
— |
|
Boron
(Heat Analysis) |
0.001–0.003 |
0.0020 Max |
— |
|
Boron
(Product Analysis) |
NAB |
NAB |
— |
|
Copper
(Heat Analysis) |
— |
0.20 |
— |
|
Copper
(Product Analysis) |
— |
0.23 |
— |
|
Nickel
(Heat Analysis) |
— |
0.25 |
— |
|
Nickel
(Product Analysis) |
— |
0.28 |
— |
|
Columbium
(Niobium), Max (Heat Analysis) |
— |
0.07 |
0.015–0.070 |
|
Columbium
(Niobium), Max (Product Analysis) |
— |
0.08 |
0.010–0.075 |
|
Calcium,
Max (Heat Analysis) |
— |
0.015 |
0.0005–0.0150 |
|
Calcium,
Max (Product Analysis) |
— |
0.020 |
NAB |
Notes:
- A: Applies to both heat analysis
and product analysis.
- B: NA = Not Applicable.
- C: Columbium and niobium are
interchangeable names for the same element and have equivalent
specifications.
- D: Rare earth metals (REM) may be
added instead of calcium, subject to agreement between the purchaser and
producer. In that case, the total REM content shall be determined and
reported.
Key Features of ASTM
A832 / A832M Plates
•
Excellent elevated temperature strength
• Superior creep resistance
• High pressure resistance
• Excellent oxidation resistance
• Outstanding mechanical strength
• Good weldability
• Excellent fabrication characteristics
• Reliable dimensional stability
• Long operational service life
• Suitable for critical pressure vessel applications
Applications of ASTM
A832 / A832M Plates
Pressure Vessel Industry
•
Pressure vessels
• Reactor vessels
• Separator vessels
• Pressure chambers
Boiler Industry
• Steam
boilers
• Boiler drums
• Superheater components
• Boiler pressure parts
Power Generation Industry
• Thermal
power plants
• Boiler systems
• Heat exchangers
• High-pressure steam equipment
Petrochemical Industry
•
Chemical reactors
• Refinery equipment
• Process vessels
• Storage tanks
Oil and Gas Industry
•
High-pressure processing equipment
• Refinery systems
• Industrial process units
• Storage vessels
Industrial Manufacturing
• Heavy
engineering equipment
• High-temperature industrial machinery
• Fabricated pressure equipment
• Industrial processing plants
Fabrication and
Welding
ASTM A832
/ A832M alloy steel plates provide excellent fabrication and welding
characteristics.
•
Suitable for conventional welding processes
• Good bending and forming properties
• Excellent machining performance
• Suitable for heavy fabrication work
• Reliable welded joint performance
• Excellent dimensional accuracy
Proper
welding procedures and post-weld heat treatment should be followed where
required by the application.
Heat Treatment
ASTM A832
/ A832M alloy steel plates are generally supplied in heat-treated conditions to
achieve the required mechanical properties.
•
Normalizing refines the grain structure
• Quenching increases strength and hardness
• Tempering improves toughness and ductility
• Stress relieving minimizes residual stresses after fabrication
• Controlled heat treatment ensures uniform mechanical properties and
dependable elevated-temperature performance
Advantages of ASTM
A832 / A832M Plates
•
Excellent creep resistance
• Superior elevated temperature strength
• High structural integrity
• Excellent pressure resistance
• Outstanding weldability
• Long operational service life
• Reliable mechanical performance
• Excellent fabrication characteristics
• Suitable for severe industrial environments
• Cost-effective alloy steel solution
Conclusion
ASTM A832 / A832M Chromium-Molybdenum-Vanadium Alloy Steel Plates are premium-quality alloy steel plates designed for pressure vessels, boilers, heat exchangers, reactors, and industrial processing equipment requiring excellent strength, creep resistance, weldability, and elevated-temperature performance. Available in Grade 21V, Grade 22V, and Grade 23V, these plates are widely used in thermal power plants, petrochemical facilities, refineries, fertilizer plants, and other critical high-temperature pressure vessel applications. Ladhani Metal Corporation supplies ASTM A832 / A832M Chromium-Molybdenum-Vanadium Alloy Steel Plates in Grade 21V, Grade 22V, and Grade 23V, various thicknesses, heat-treated conditions, surface finishes, and customized dimensions, delivering reliable material solutions for pressure vessel, boiler, and industrial engineering projects worldwide.
FOR REQUIREMENT OF THIS GRADE
OR FOR DETAIL CONTACT US AT :-
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