Silver Tubes is a trusted manufacturer and supplier of steel sheets, plates, and coils, known for precision and quality. With advanced production equipment, We follow stringent fabrication processes such as hot rolling and cold rolling forms of sheets of steel and their protective coatings. They meet ASTM, ASME, DIN, EN, and JIS requirements concerning durability and performance for our products. Available in different sizes, thicknesses and dimensions, stainless steel, carbon steel and alloy steel are available. Our galvanized steel coils improve corrosion resistance, while perforated steel sheets are appropriate for industrial and decorative use. We are a top steel sheet manufacturer in India, catering to industries such as oil & gas, construction, and shipbuilding, offering competitive steel sheet prices and adherence to the HSN Code for Sheets in India. With a focus on quality and customer satisfaction, Silver Tubes ensures reliable and timely delivery.
Steel plates, coils and sheets are standard metal materials utilised in industrial applications due to their versatility, strength and durability. These products are fabricated in varying material, sizes and thickness in accordance with diverse application need. Sheets are thin metal pieces, whereas steel plates are thicker and usable in heavy-duty use. Coils are rolled steel in continuous form for large scale production. Our products are available in different thickness and dimensional tolerances to suit the precision requirements. We have diverse surface finishes and coatings, like galvanized, polished and coated options, to increase the corrosion resistance and lifespan. Effective quality control mechanisms ensure compliance with standards. Proper handling, storage, and transportation avoid warping and damage. The general problems such as surface defects, corrosion, and mechanical stress can be eliminated with protective coatings and controlled manufacturing processes, providing high-quality performance across applications.
Our coils, plates, and steel sheets play a vital role in the automotive, engineering, and construction sectors where strength, precision, and durability are important. Knowing about the manufacturing process of steel sheets helps industries choose the right material for their intended use.
Raw Material Preparation
The procedure starts with steelmaking, where raw iron is purified and alloyed to improve mechanical characteristics. This molten steel is cast into slabs using slab casting for further treatment.
Hot Rolling Steel Process
In hot rolling, slabs are heated to high temperatures and rolled through rollers to attain the required thickness. The metal is subsequently cooled in a controlled process to improve its structural strength.
Cold Rolling Steel
For thinner applications, the steel coil rolling method goes through cold rolling, enhancing mechanical strength, and surface finish. This steel hardening process improves the grain structures through recrystallization.
Finishing and Quality Control
Steel is inspected for dimensional tolerances, surface imperfections, and coating applications.
Types of Steel Products
We provide different sheets, plates & coils materials, each having particular properties and grades appropriate for various industrial needs.
Carbon Steel Sheets, Plates & Coils
Durable and cost-effective, carbon steel plates offer excellent strength and weldability, making them ideal for structural applications.
Stainless Steel Sheets, Plates & Coils
Known for corrosion resistance, stainless steel plate sheets offer durability in harsh environments.
Alloy Steel Sheets, Plates & Coils
Engineered for strength and high-temperature performance, alloy steel plates offer enhanced durability.
Duplex & Super Duplex Stainless Steel Sheets, Plates & Coils
Designed for superior strength and corrosion resistance in extreme conditions.
Nickel Alloy Sheets, Plates & Coils
Nickel-based alloys provide exceptional corrosion and heat resistance for specialized applications.
Copper-Nickel (Cu-Ni) Sheets, Plates & Coils
Highly resistant to seawater corrosion, copper-nickel sheets, plates & coils offer excellent strength and durability.
The sheets, plates, and coils of steel are used widely due to their cost, strength, durability, and versatility making them essential for many industrial applications. These major advantages guarantee their ongoing demand across industries.
Below are specifications of steel plates, sheets, and coils consisting of material grade, thickness, width, length, surface finishes, and standard applicable to ensure quality and performance.
| Parameter | Sheets | Plates | Coils |
| Thickness Range | 0.2 mm – 6 mm | 6 mm – 150 mm or more | 0.2 mm – 20 mm (HR/CR coils) |
| Width Range | Up to 2000 mm (custom cuts available) | Up to 3000 mm | 600 mm – 2000 mm |
| Length (for CTL) | 1000 mm – 6000 mm | 2000 mm – 12000 mm | Coil form (cut to length on demand) |
| Edge Options | Mill edge, Slit edge | Mill edge | Slit edge, mill edge |
| Surface Finish | 2B, BA, No. 1, No. 4, Mirror, Matte | HR, Pickled & Oiled, Shot Blasted | HR, CR, Galvanized, Color-Coated |
| Tolerance Standards | As per ASTM, EN, IS, or customer specs | As per ASTM, EN, IS, or customer specs | As per ASTM, EN, IS, or customer specs |
The following are the chemical composition details of steel sheets, plates, and coils, varying based on grade and material specifications.
| Element | Composition (%) |
| Carbon (C) | ≤ 0.23 |
| Manganese (Mn) | 0.30 – 0.90 |
| Sulfur (S) | ≤ 0.050 |
| Phosphorus (P) | ≤ 0.050 |
| Silicon (Si) | ≤ 0.40 |
The following are the mechanical properties of steel sheets, plates, and coils, categorized based on industry standards and material grades.
| Mechanical Property | Tensile Strength Ranking | 3.6 | 4.6 | 4.8 | 5.6 | 5.8 | 6.8 | 8.8 (1) | 9.8 (2) | 10.9 | 12.9 |
| Nominal Tensile Strength Rm and nom N/mm² | 300 | 400 | 500 | 500 | 600 | 800 | 800 | 900 | 1000 | 1200 | |
| Minimum Tensile Strength Rm and min(4) N/mm² | 330 | 420 | 520 | 600 | 800 | 830 | 900 | 900 | 1040 | 1220 | |
| Vickers Hardness HV F=98N | Min. | 95 | 120 | 130 | 155 | 160 | 250 | 255 | 290 | 320 | 385 |
| Max. | 220(5) | 250 | 250 | 320 | 335 | 360 | 380 | 380 | 380 | 435 | |
| Brinell Hardness HB F=30D²/0.102 | Min. | 90 | 114 | 124 | 147 | 152 | 181 | 238 | 242 | 276 | 304 |
| Max. | 209(5) | 238 | 238 | 304 | 318 | 342 | 361 | 366 | 366 | 414 | |
| Rockwell Hardness | Min. (HRB) | 52 | 67 | 71 | 77 | 79 | 82 | 89 | - | - | - |
| Min. (HRC) | - | - | - | - | - | - | 22 | 23 | 28 | 39 | |
| Max. (HRB) | 95.0(5) | - | - | - | - | 99.5 | - | - | - | - | |
| Max. (HRC) | - | - | - | - | - | - | 32 | 34 | 37 | 44 | |
| Surface Hardness HV0.3 | Max. | - | - | - | - | - | - | - | (8) | - | - |
| Lower Yield Point Re (7) N/mm² | Nominal Diameter | 180 | 240 | 320 | 300 | 400 | 480 | - | - | - | - |
| Min. | 190 | 240 | 340 | 300 | 420 | 480 | - | - | - | - | |
| 0.2% Durability RP0.2 (8) N/mm² | Nominal Diameter | - | - | - | - | - | - | 640 | 640 | 720 | 900 |
| Min. | - | - | - | - | - | - | 660 | 720 | 940 | 1100 | |
| Guarantee Load Stress Sp | Sp/ReL or Sp/RP0.2 | 0.94 | 0.94 | 0.91 | 0.93 | 0.9 | 0.92 | 0.91 | 0.91 | 0.88 | 0.88 |
| Rupture Elongation % | 25 | 22 | - | - | 12 | 12 | 10 | 9 | 8 | 8 |
Sheets, plates, and coils come in different sizes, thicknesses, and dimensions to cater to various industrial applications. These sizes are according to international requirements like ASTM, ASME, EN, and JIS to maintain precision and quality.
Thickness:
Width:
Length:
Materials:
Finishes:
The following are some of the most popular grades of steel sheets, plates, and coils. These grades are used depending on their mechanical properties, corrosion resistance, and applicability in different industrial uses.
Carbon Steel Sheets, Plates & Coils
Carbon steel coils, plates, and sheets are particularly noted for being very strong, durable, and cost-effective. They find extensive use in construction, structural uses and pressure vessels.
Stainless Steel Sheets, Plates & Coils
Stainless steel sheets, plates, and coils offer excellent corrosion resistance, making them suitable for harsh environments, food processing, and marine applications.
Alloy Steel Sheets, Plates & Coils
Alloy steel sheets, plates, and coils are designed to offer improved strength, toughness, and heat resistance, making them ideal for high-temperature and pressure applications.
Duplex & Super Duplex Stainless Steel Sheets, Plates & Coils
Duplex and super duplex stainless steel sheets, plates, and coils provide a combination of high strength and excellent corrosion resistance, particularly in chloride-rich environments.
Nickel Alloy Sheets, Plates & Coils
Nickel alloy plates, sheets, and coils have good high-temperature strength, corrosion resistance, and high performance in harsh environments.
Copper-Nickel (Cu-Ni) Sheets, Plates & Coils
Copper-nickel sheets, coils, and plates offer improved seawater corrosion resistance, thermal conductivity and biofouling and are well suited for industrial and marine uses.
The difference between these plates, sheets and coils can be explained in terms of their thickness, such as sheet is thinner, a plate is thicker, and a coil is a rolled up continuous sheet for easy transportation and processing.
Types of sheet, a plate and a coil
| Type | Description |
| Cold Rolled Sheet (CR) | Smooth finish, tight tolerance, used in appliances, furniture, automotive. |
| Hot Rolled Sheet (HR) | Scaled surface, less precise, used in structural and fabrication work. |
| Galvanized Sheet (GI) | Zinc-coated for corrosion resistance, used in ducts, roofing, panels. |
| Electro-Galvanized Sheet (EGI) | Electroplated zinc, better surface finish, used in electronics, auto parts. |
| Stainless Steel Sheet (SS) | Corrosion-resistant, used in food, pharma, marine, and decorative sectors. |
| Pre-painted Galvanized Sheet | Painted GI sheet, used in cladding, roofing, signage. |
| Embossed/Textured Sheet | Textured patterns (e.g., diamond), anti-slip floors, decorative uses. |
| Perforated Sheet | Punched holes for ventilation, filtration, or aesthetic applications. |
These are the standards to which we apply to sheets, plates and coils, insuring quality, material characteristics, and conformity with industry standards.
Key Standards:
ASTM: A240 (ASTM A240 Plate for stainless steel sheets/plates), A36 (carbon steel plates), A516 (pressure vessel plates), A387 (alloy steel plates).
As an ASTM A240 Sheet Supplier in Mumbai, we offer high-quality stainless steel sheets and plates, which are certified products that meet industry standards.
The Unified Numbering System (UNS) is a standardized system developed to classify metals and alloys, ensuring consistency across industries.
What is UNS?
The UNS is a classification system developed by ASM International and ASTM International to classify metals according to their composition. It gives a specific designation to every metal alloy so that naming and properties are consistent.
How it related to Sheets, Plates, and Coils
UNS codes specify the exact grade of alloy or steel applied in sheets, plates, and coils. Such codes ensure compatibility with worldwide quality, and manufacturing standards by standardizing material properties.
Why It’s Important
With the use of UNS codes, both manufacturers and purchasers can use the same specifications for a material, avoiding confusion and guaranteeing quality control. It ensures consistency in chemical content and mechanical properties.
Where to Find UNS Codes
UNS codes are contained within material specifications, industry datasheets, and global standards such as ASTM, ASME, and JIS to provide global market compliance.
Silver Tubes is a well-known manufacturer, providing quality steel products with precision and reliability. We offer high-grade Stainless Steel Plates & Sheets at competitive prices, ensuring cost-effective solutions without compromising quality. Our products are ISO, ASTM, ASME, and PED-certified, backed by strict quality control measures to guarantee durability and strength. With a vast inventory, we provide instant order processing and global shipping, serving industries globally. Our specialized customer support is available to assist, and our products comes with warranty-backed guaranteed. We offer vital certifications like Mill Test Reports (MTR), EN 10204 3.1/3.2, ASME & ASTM compliance reports, ISO 9001 and PED certification to guarantee compliance with industry standards. Every product is securely packaged with clear markings for safe transportation and easy identification, making Silver Tubes a preferred choice for superior steel solutions.
Stainless steel coils, plates, and sheets are widely used across various industries due to their durability, corrosion resistance, and strength.
Building & Construction
Automotive manufacturing
Marines Application
Energy Production
Chemical Processing
Healthcare and Medical
Home Appliances
Oil & Gas
Coil thickness is generally thinner than plate thickness and can vary depending on the rolling process. Sheets typically range from 0.3mm to 6mm, plates are 6mm to 150mm, while coils can be customized based on requirements.
The weight of steel sheets, plates, and coils can be calculated using the formula: Weight (kg) = Length (m) × Width (m) × Thickness (mm) × Density (kg/m³) For stainless steel, the density is approximately 7850 kg/m³.
The cost of 1 kg of steel sheets, plates, and coils depends on factors such as material type, grade, thickness, and market fluctuations. For the latest pricing, reach out to Silver Tubes, a reliable stainless steel sheet supplier in India.
Aluminum coils are widely used in roofing, HVAC systems, automotive manufacturing, electrical appliances, and food packaging due to their lightweight, corrosion resistance, and excellent thermal conductivity.
Plate thickness is measured using calipers, ultrasonic thickness gauges, or micrometers to ensure accuracy. It is specified in millimeters (mm) or inches, with standard industrial plates starting from 6mm and above.
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