Navgraha Steel and Engineering Co.
GST : 27AKMPD8450F1Z3
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Alloy Steel Sheet And Plate

Step into the future with our Alloy Steel Sheet And Plate, meticulously supplied and traded by a team with over 12 years of unmatchable industry expertise, delivering perfect solutions to clients as leading suppliers, exporters, and traders across All India. Our product line, featuring in-demand items such as the A387 Alloy Steel Plate, ASTM A387 Gr.91 Cl.2 Chrome Moly Steel Sheet, and ASME SA387 Alloy Steel Gr.22 Cl.1 Plate, is highly popular for its optimum performance in demanding applications. Businesses dealing in Alloy Steel Sheet And Plate recognize the superior corrosion resistance, exceptional strength-to-weight ratio, high temperature endurance, excellent weldability, and precise dimensional accuracy-advantages that distinguish our offerings in the market. Compared to conventional options, our range ensures longer service life and minimal maintenance requirements, making it the preferred choice for both new-age projects and heavy-duty industrial use. If you seek unmatchable quality, perfect reliability, and proven supply capability across All India, our Alloy Steel Sheet And Plate collection stands apart as the ultimate solution for your application needs.
A387 Alloy Steel Sheet

A387 Alloy Steel Sheet

MOQ : 100 Kilograms

  • Application
  • Other, Industrial, Pressure Vessels, Boilers, Petrochemical, Oil & Gas
  • Coating Type
  • Uncoated / As Rolled
  • Color
  • Silver Gray
  • Composition
  • Chromium-Molybdenum Alloy
  • Corrosion Resistant
  • Yes
  • Dimension (L*W*H)
  • Custom sizes available as per requirement
  • Finish Type
  • Mill Finish
  • Grade
  • A387 Grade 11, 22, 5, 9
  • Hardness
  • 120-180 HB
  • Heat Resistance
  • Yes
  • Material Composition %
  • Cr: 1.00-9.50%, Mo: 0.45-1.10%, balance Fe
  • Material Grade
  • A387 Gr 11 / 22 / 5 / 9
  • Product Form
  • Flat Sheet
  • Product Name
  • Other, A387 Alloy Steel Sheet
  • Recyclable
  • Yes
  • Shape
  • Other, Rectangular, Sheet
  • Size
  • Custom cut lengths and widths
  • Steel Product Type
  • Other, Sheet
  • Steel Standard
  • Other, ASTM A387 / ASME SA387
  • Steel Type
  • Alloy Steel
  • Surface
  • Hot Rolled, Smooth
  • Tensile Strength
  • 415-585 MPa (depending on grade)
  • Thickness
  • 0.5 mm to 100 mm
  • Usage
  • Fabrication of Pressure Vessels, Structural Applications
  • Weight
  • As per size and thickness
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A387 Alloy Steel Plate

A387 Alloy Steel Plate

MOQ : 100 Kilograms

  • Application
  • Other, Boiler, Pressure Vessels, Heat Exchangers, Structural Applications
  • Coating Type
  • None (bare), or as per customer requirement
  • Color
  • Metallic Grey
  • Composition
  • Chromium, Molybdenum, Carbon, Manganese, Silicon, Sulfur, Phosphorus
  • Corrosion Resistant
  • High
  • Diameter
  • N/A (Plate Form)
  • Dimension (L*W*H)
  • Customizable, Standard size or as per requirement
  • Finish Type
  • Hot Rolled, Cold Rolled, Polished, Mill Finish
  • Grade
  • A387 Gr 11, Gr 12, Gr 22, Gr 5, Gr 9
  • Hardness
  • Max 250 HBW (Brinell Hardness)
  • Heat Resistance
  • Yes
  • Material Composition %
  • Cr (1.00-2.50%), Mo (0.45-1.00%), C (0.05-0.20%), Mn (0.40-1.00%), Si (0.15-0.50%)
  • Material Grade
  • A387 Class 1, Class 2
  • Product Form
  • Plate Sheet
  • Product Name
  • Other, A387 Alloy Steel Plate
  • Recyclable
  • Yes
  • Shape
  • Other, Rectangular, Custom Cut
  • Size
  • 1250 mm x 2500 mm, 1500 mm x 6000 mm, Custom Available
  • Steel Product Type
  • Other, Sheet, Plate
  • Steel Standard
  • Other, ASTM A387, ASME SA387
  • Steel Type
  • Alloy Steel
  • Surface
  • Polished, Mill Finish
  • Tensile Strength
  • 415 - 585 MPa (Grade and Class dependent)
  • Thickness
  • 5 mm to 150 mm
  • Usage
  • Industrial, Boiler Manufacturing, Power Plant, Petrochemical Industries
  • Weight
  • Varies as per dimension and thickness
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ASTM A387 Alloy Steel Gr.22 Class 1 Sheet

ASTM A387 Alloy Steel Gr.22 Class 1 Sheet

MOQ : 100 Kilograms

  • Application
  • Other, Pressure Vessels, Boilers, and Heat Exchangers
  • Coating Type
  • Optional - as per requirement
  • Color
  • Silver / Grey
  • Composition
  • Cr-Mo Alloy Steel
  • Corrosion Resistant
  • Yes, with proper surface treatment
  • Diameter
  • Not applicable for sheets
  • Dimension (L*W*H)
  • Customizable as per order
  • Finish Type
  • Hot Rolled / Cold Rolled / Polished
  • Grade
  • Gr.22 Class 1
  • Hardness
  • Max 250 HBW
  • Heat Resistance
  • Yes
  • Material Composition %
  • Chromium 1.90-2.60%, Molybdenum 0.87-1.13%, Carbon 0.05-0.15%, Manganese 0.40-0.80%, Phosphorus 0.025%, Sulfur 0.025%, Silicon 0.50-1.00%
  • Material Grade
  • Gr.22 Class 1
  • Product Form
  • Sheet / Plate
  • Product Name
  • Other, ASTM A387 Alloy Steel Gr.22 Class 1 Sheet
  • Recyclable
  • Yes
  • Shape
  • Other, Rectangular / Customized
  • Size
  • Standard & Custom sizes available
  • Steel Product Type
  • Other, Sheet
  • Steel Standard
  • Other, ASTM A387
  • Steel Type
  • Alloy Steel
  • Surface
  • Hot Rolled / Polished / Pickled
  • Tensile Strength
  • 415 - 585 MPa
  • Thickness
  • 1.5 mm to 100 mm
  • Usage
  • Industrial, Petrochemical, Power Generation
  • Weight
  • Depends on dimensions and thickness
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ASME SA387 Alloy Steel Gr.22 Cl.1 Plate

ASME SA387 Alloy Steel Gr.22 Cl.1 Plate

MOQ : 100 Kilograms

  • Application
  • Other, Pressure Vessels, Boilers, Heat Exchangers, Industrial and Power Plant Construction
  • Coating Type
  • Optional: Painted, Oiled, or as specified
  • Color
  • Metallic Gray
  • Composition
  • Chromium-Molybdenum Alloy Steel
  • Corrosion Resistant
  • Yes (with appropriate coating or surface finish)
  • Diameter
  • N/A (Plate product)
  • Dimension (L*W*H)
  • As per requirement / Custom cut to size
  • Finish Type
  • Mill Finish / Shot Blasted
  • Grade
  • Gr.22 Cl.1
  • Hardness
  • 163-217 HB
  • Heat Resistance
  • Yes
  • Material Composition %
  • Cr 2.00-2.50%, Mo 0.87-1.13%, C max 0.10%, Mn 0.40-1.00%, Si 0.50 max, P 0.025 max, S 0.025 max, Fe balance
  • Material Grade
  • SA387 Grade 22 Class 1
  • Product Form
  • Plates
  • Product Name
  • Other, ASME SA387 Alloy Steel Gr.22 Cl.1 Plate
  • Recyclable
  • Yes
  • Shape
  • Other, Rectangular
  • Size
  • Custom sizes available (Common widths: 1500mm-3000mm, Lengths: up to 12000mm)
  • Steel Product Type
  • Steel Plates
  • Steel Standard
  • Other, ASME SA387 / ASTM A387
  • Steel Type
  • Alloy Steel
  • Surface
  • Hot Rolled, Mill Finish, Shot Blasted, or as required
  • Tensile Strength
  • 415-585 MPa
  • Thickness
  • 6 mm to 100 mm (or as specified)
  • Usage
  • High Pressure and High Temperature Applications
  • Weight
  • As per actual / Depends on plate size and thickness
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ASTM A387 Gr.91 Cl.2 Chrome Moly Steel Sheet

ASTM A387 Gr.91 Cl.2 Chrome Moly Steel Sheet

MOQ : 100 Kilograms

  • Application
  • Other, Pressure Vessels, Boilers, Heat Exchangers, Power Generation, Oil & Gas Industry
  • Coating Type
  • No coating/Uncoated
  • Color
  • Silver / Metallic Grey
  • Composition
  • Chrome-Molybdenum Alloy Steel
  • Corrosion Resistant
  • Yes
  • Diameter
  • N/A for sheet
  • Dimension (L*W*H)
  • Customized as per requirement
  • Finish Type
  • Mill Finish
  • Grade
  • Gr.91 Cl.2
  • Hardness
  • 163-235 HBW
  • Heat Resistance
  • Yes
  • Material Composition %
  • Cr 8-9.5%, Mo 0.85-1.05%, C 0.08-0.12%, Mn 0.3-0.6%, Si 0.2-0.5%, P 0.02%, S 0.01%
  • Material Grade
  • SA387 Grade 91 Class 2
  • Product Form
  • Sheet / Plate
  • Product Name
  • Other, ASTM A387 Gr.91 Cl.2 Chrome Moly Steel Sheet
  • Recyclable
  • Yes
  • Shape
  • Other, Rectangle / Sheet
  • Size
  • Standard & Custom Sizes Available
  • Steel Product Type
  • Other, Sheet
  • Steel Standard
  • Other, ASTM A387
  • Steel Type
  • Alloy Steel
  • Surface
  • Hot Rolled, Mill Finished
  • Tensile Strength
  • 585-760 MPa
  • Thickness
  • 4-100 mm
  • Usage
  • Structural, Industrial, Fabrication
  • Weight
  • As per size and thickness
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SA387 Chromium Molybdenum Grade 91 Class 1 Plate

SA387 Chromium Molybdenum Grade 91 Class 1 Plate

MOQ : 100 Kilograms

  • Application
  • Other, Pressure vessels, heat exchangers, power generation, and petrochemical industries
  • Coating Type
  • Uncoated (mill finish by default)
  • Color
  • Metallic gray
  • Composition
  • Chromium-Molybdenum alloy
  • Corrosion Resistant
  • Excellent (with respect to oxidation and sulfidation)
  • Diameter
  • N/A for plate format
  • Dimension (L*W*H)
  • Customizable as per requirement
  • Finish Type
  • Mill finish
  • Grade
  • Grade 91 Class 1
  • Hardness
  • Max 250 HBW (Brinell)
  • Heat Resistance
  • Yes
  • Material Composition %
  • Cr 8-10.5%, Mo 0.85-1.05%, C 0.08-0.12%, Mn 0.3-0.6%, Si 0.2-0.5%, with balance Fe and trace elements
  • Material Grade
  • Grade 91
  • Product Form
  • Plate
  • Product Name
  • Other, SA387 Chromium Molybdenum Grade 91 Class 1 Plate
  • Recyclable
  • Yes
  • Shape
  • Other, Rectangular Plate
  • Size
  • Standard or custom cut-to-size
  • Steel Product Type
  • Other, Plates
  • Steel Standard
  • Other, ASTM A387 / ASME SA387
  • Steel Type
  • Alloy Steel
  • Surface
  • Hot rolled, mill finish
  • Tensile Strength
  • 585 - 760 MPa
  • Thickness
  • 6 mm to 100 mm (custom upon request)
  • Usage
  • Manufacturing boilers, pressure vessels, reactors, and high-temperature service equipment
  • Weight
  • Varies as per size and thickness
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ASME SA387 Alloy Steel Gr.5 Cl.1 Sheet

ASME SA387 Alloy Steel Gr.5 Cl.1 Sheet

MOQ : 100 Kilograms

  • Application
  • Other, Boiler and Pressure Vessels, Power Generation, Petrochemical, Oil & Gas Industries
  • Coating Type
  • Uncoated / On request
  • Color
  • Metallic Grey
  • Composition
  • Alloy steel with Chromium and Molybdenum
  • Corrosion Resistant
  • Yes
  • Diameter
  • N/A (Sheet form)
  • Dimension (L*W*H)
  • Customized as per requirement
  • Finish Type
  • Mill finish / Polished
  • Grade
  • Gr. 5 Cl. 1
  • Hardness
  • Max 230 HBW
  • Heat Resistance
  • Yes
  • Material Composition %
  • Cr 4.0-6.0 %, Mo 0.45-0.65 %, C 0.05-0.15 %, Mn 0.40-1.00 %, Si 0.40-1.00 %, Balance Fe
  • Material Grade
  • Gr. 5 Cl. 1
  • Product Form
  • Sheet / Plate
  • Product Name
  • Other, ASME SA387 Alloy Steel Gr.5 Cl.1 Sheet
  • Recyclable
  • Yes
  • Shape
  • Other, Rectangular / Custom cut
  • Size
  • Custom Sheet Sizes
  • Steel Product Type
  • Other, Sheet
  • Steel Standard
  • Other, ASME SA387 / ASTM A387
  • Steel Type
  • Alloy Steel
  • Surface
  • Hot Rolled, Cold Rolled, Polished
  • Tensile Strength
  • 510-690 MPa
  • Thickness
  • 1 mm to 100 mm
  • Usage
  • Industrial fabrication for pressure vessels and heat exchangers
  • Weight
  • As per size & thickness
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ASME SA387 Grade 5 Cl-2 Cr-Mo Plate

ASME SA387 Grade 5 Cl-2 Cr-Mo Plate

MOQ : 100 Kilograms

  • Application
  • Other, Pressure vessels, Boilers, Heat exchangers, Oil and gas refineries, Petrochemical industry
  • Coating Type
  • Uncoated or as specified (custom coating available upon request)
  • Color
  • Metallic grey
  • Composition
  • Chromium-Molybdenum alloy steel
  • Corrosion Resistant
  • Yes, improved resistance to corrosion and oxidation
  • Diameter
  • Not applicable (plate form)
  • Dimension (L*W*H)
  • As per client requirement (custom lengths, widths, and thickness available)
  • Finish Type
  • Mill finish or as required
  • Grade
  • SA387 Gr 5 Class 2
  • Hardness
  • 235 HBW (Brinell)
  • Heat Resistance
  • Yes
  • Material Composition %
  • Cr: 4.0-6.0%, Mo: 0.45-0.65%, C: 0.15%, Mn: 0.4-1.0%, Si: 0.15-0.50%, P: 0.025%, S: 0.025%
  • Material Grade
  • ASME SA387 Gr 5 Cl 2
  • Product Form
  • Hot Rolled Plate
  • Product Name
  • Other, ASME SA387 Grade 5 Cl-2 Cr-Mo Plate
  • Recyclable
  • Yes
  • Shape
  • Other, Rectangular
  • Size
  • Custom sizes available, standard widths up to 3000 mm
  • Steel Product Type
  • Other, Alloy Steel Plate
  • Steel Standard
  • Other, ASME SA387 / ASTM A387
  • Steel Type
  • Alloy Steel
  • Surface
  • Mill finish, Annealed, Shot blasted
  • Tensile Strength
  • 515 to 690 MPa
  • Thickness
  • 6 mm to 120 mm (custom thicknesses available)
  • Usage
  • Industrial, High pressure service, Elevated temperature service
  • Weight
  • Variable depending on plate size and thickness
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ASME SA387 Grade 12 Cl-2 Cr-Mo Sheet

ASME SA387 Grade 12 Cl-2 Cr-Mo Sheet

MOQ : 100 Kilograms

  • Application
  • Other, Pressure Vessels, Boilers, Petrochemical Industry, Gas Processing Plants, Nuclear Reactors, Power Generation
  • Coating Type
  • No coating / Mill finish (Custom coating available)
  • Color
  • Metallic Grey
  • Composition
  • Chromium-Molybdenum Alloy (Cr-Mo)
  • Corrosion Resistant
  • Yes, Enhanced Corrosion Resistance
  • Diameter
  • N/A (Sheet/Plate)
  • Dimension (L*W*H)
  • As Required / Custom Cut
  • Finish Type
  • Mill Finish, Hot Rolled, Polished
  • Grade
  • SA387 Grade 12 Class 2
  • Hardness
  • 235 HBW (max)
  • Heat Resistance
  • Yes
  • Material Composition %
  • Cr: 0.80-1.25%, Mo: 0.45-0.65%, C: 0.12%, Mn: 0.40-0.70%, Si: 0.50% max, S: 0.025% max, P: 0.025% max, Fe: Balance
  • Material Grade
  • Grade 12 Cl-2
  • Product Form
  • Sheet / Plate
  • Product Name
  • Other, ASME SA387 Grade 12 Cl-2 Cr-Mo Sheet
  • Recyclable
  • Yes
  • Shape
  • Other, Rectangular/Plate/Sheet
  • Size
  • As per customer requirement
  • Steel Product Type
  • Other, Sheet
  • Steel Standard
  • Other, ASME SA387
  • Steel Type
  • Alloy Steel
  • Surface
  • Hot Rolled, Pickled, Polished
  • Tensile Strength
  • 485-620 MPa
  • Thickness
  • 2mm to 100mm (or as per order)
  • Usage
  • High-temperature and pressure applications
  • Weight
  • Variable as per dimension
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SA387 Chromium Molybdenum Grade 12 Class 1 Plate

SA387 Chromium Molybdenum Grade 12 Class 1 Plate

MOQ : 100 Kilograms

  • Application
  • Other, Pressure Vessels, Boilers, Heat Exchangers, Petrochemical Equipment
  • Coating Type
  • Uncoated or as per order
  • Color
  • Metallic Grey
  • Composition
  • Chromium-Molybdenum Alloy Steel
  • Corrosion Resistant
  • Yes, improved compared to standard carbon steel
  • Diameter
  • N/A for plate form
  • Dimension (L*W*H)
  • As required by customer specification
  • Finish Type
  • Mill or custom finishes available
  • Grade
  • SA387 Grade 12 Class 1
  • Hardness
  • Maximum 241 HB (Brinell)
  • Heat Resistance
  • Yes
  • Material Composition %
  • Cr: 0.80-1.25%, Mo: 0.44-0.65%, C: 0.05-0.17%, Mn: 0.40-0.70%, Si: 0.15-0.50%, S: 0.03%, P: 0.03%
  • Material Grade
  • Grade 12 Class 1
  • Product Form
  • Plate
  • Product Name
  • Other, SA387 Chromium Molybdenum Grade 12 Class 1 Plate
  • Recyclable
  • Yes
  • Shape
  • Other, Rectangular / Plate
  • Size
  • Standard and custom sizes
  • Steel Product Type
  • Other, Plate
  • Steel Standard
  • Other, ASTM A387 / ASME SA387
  • Steel Type
  • Alloy Steel
  • Surface
  • Mill Finish, Shot Blasted or as specified
  • Tensile Strength
  • 415-585 MPa
  • Thickness
  • 6 mm to 100 mm
  • Usage
  • High-temperature and pressure service applications
  • Weight
  • As per dimensions and thickness
Know more


Navgraha Steel and Engineering Co.
GST : 27AKMPD8450F1Z3
Krishvi Escape, No. A208, 2ND Floor, A Wing, Sitaram Poddar Marg, Bhuleshwar.Mumbai - 400004, Maharashtra, India
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Mr. Amit Doshi (DIRECTOR)
Mobile : +919833033773, +919372975114
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