Gunmetal Pipe and Tube
Gunmetal Pipe and Tube are manufactured to meet stringent ASTM and ISO standards, ensuring durability and corrosion resistance in industrial applications. These components are commonly produced in various grades to suit specific mechanical and chemical requirements.
Widely used in marine, hydraulic, and pneumatic systems, these products undergo rigorous non-destructive testing and dimensional inspections to guarantee compliance with international quality benchmarks. Their alloy composition provides excellent machinability and wear resistance.
Export processes for these items involve meticulous packaging to prevent damage during transit, adhering to international logistics protocols. Proper documentation and certification accompany each shipment to facilitate smooth customs clearance.
Efficient supply chain management ensures timely delivery of these tubes and pipes to global markets, supporting industries such as oil and gas, automotive, and construction. Continuous monitoring of production batches maintains consistency and traceability throughout the export cycle.
Global Delivery & Export Assurance
Trusted by EPC contractors, OEMs, and industrial buyers in 40+ countries
β± Fast Lead Time
2β7 weeks depending on size & specification
Expedited production available on requestπ¦ Flexible Delivery Terms
FOB, CIF, CFR, DDP (Incoterms 2020)
Door-to-port and door-to-door optionsβοΈ Global Shipping
Sea Freight / Air Cargo / Express Courier
Export documentation & tracking includedRequest Export Pricing for Gunmetal Pipe and Tube
Trusted by EPC contractors, procurement teams, and global industrial buyers across 50+ countries for certified supply and on-time delivery.
Manufacturer Pricing
Factory-direct rates with bulk stock availability to reduce your total landed cost.
International Certifications
ISO, EN 10204 3.1, SGS & TPI approved with mill test certificates on every shipment.
Export-Ready Packaging
Sea-worthy, container-ready packaging for safe international transit and on-time delivery.
Table of Contents
- 1. What is Gunmetal Pipe and Tube
- 2. Why Choose Ragnar Pipe and Tube
- 3. Export Delivery & Lead Time Information
- 4. How to Choose the Right Manufacturer
- 5. Comparison of Gunmetal Pipe and Tube
- 6. Why Global Buyers Source from Ragnar Metal and Tube
- 7. Features
- 8. Technical Overview
- 9. Specifications
- 10. Available Grades
- 11. Available Sizes
- 12. Chemical Properties
- 13. Mechanical Properties
- 14. Physical & Thermal Properties
- 15. Electrical Resistivity
- 16. Equivalent Grades
- 17. Manufacturing Process & Heat Treatment
- 18. Various Types
- 19. Applications & Uses
- 20. Industries We Serve
- 21. Latest Price List
- 22. MOQ & Payment Terms
- 23. Export Packaging & Shipping
- 24. Cities We Supply in India
- 25. Countries We Export Worldwide
- 26. Our Certifications
- 27. Quality Inspection & Testing
- 28. Our Other Product Types
- 29. People Also Search For
- 30. Frequently Asked Questions
- 31. About Ragnar Metal and Tube
How to Choose the Right Supplier for Gunmetal Pipe and Tube
Choosing the right supplier for Gunmetal Pipe and Tube plays a critical role in ensuring product quality, project safety, and long-term cost efficiency. With a wide range of manufacturers, stockists, and exporters operating across India, buyers must look beyond pricing and focus on reliability, certifications, and export readiness.
At Ragnar Metals & Tubes, we support global EPC contractors, procurement managers, and industrial buyers by delivering fully certified, traceable, and export-compliant metal products that meet international standards and country-specific import regulations.
- International standards compliance β ASTM, ASME, EN, ISO, and EN 10204 3.1 material test certification
- Verified manufacturing and sourcing β Direct mill supply, in-house processing, and strict quality inspections
- Inspection and export documentation β SGS, TPI, BV, and customs-ready paperwork for smooth international clearance
- Stock availability and delivery timelines β Reliable lead times for urgent, bulk, and project-based requirements
- Global project experience β Proven supply for oil & gas, EPC, petrochemical, power generation, and heavy engineering industries
Comparison Guide for Gunmetal Pipe and Tube
Understand the key differences between local suppliers, trading firms, and ISO-certified manufacturers to make informed sourcing decisions for international and domestic projects.
| Evaluation Factor | Small Local Suppliers | Trading Companies | ISO-Certified Manufacturers |
|---|---|---|---|
| Manufacturing Control | Limited in-house processing | Dependent on third-party mills | Full in-house production or audited partner facilities |
| International Standards | Basic or regional compliance | Varies by sourcing mill | ASTM, ASME, EN, ISO certified materials |
| Inspection & Certification | Limited documentation | Inconsistent MTC availability | EN 10204 3.1 / 3.2, SGS, TPI, BV support |
| Export & Logistics Experience | Low or domestic-only | Moderate international handling | Established exports to 50+ countries |
| Project Risk Level | High | Medium | Low |
For critical applications in oil & gas, EPC, power generation, marine, and infrastructure projects, buyers typically prioritize ISO-certified manufacturers to ensure compliance, traceability, and long-term performance.
Why Global Buyers Partner with Ragnar Metals & Tubes
Ragnar Metals & Tubes is a globally trusted manufacturer, stockist, and exporter of stainless steel, duplex steel, alloy steel, and high-performance piping solutions supporting EPC contractors, industrial plants, and infrastructure projects across the Middle East, Europe, Africa, Southeast Asia, and the Americas . Our strength lies in technical expertise, certified quality systems, and export-focused supply chains designed for long-term project reliability.
| Ragnar Advantage | How It Benefits You |
|---|---|
| ISO-Certified Quality Management Systems | Documented inspection, traceability, and process controls ensure consistent material performance and compliance. |
| ASTM, ASME & EN Standard Compliance | Internationally approved specifications with EN 10204 3.1 / 3.2 mill test certificates for project and regulatory acceptance. |
| Strategic Stockholding & Production Partnerships | Faster lead times and stable supply for shutdowns, expansions, and large-scale EPC requirements. |
| Global Export & Documentation Expertise | Complete handling of COO, HS codes, packing lists, invoices, and third-party inspections for smooth customs clearance. |
| In-House & Third-Party Quality Verification | Chemical, mechanical, and dimensional testing supported by SGS, TPI, BV, and client-nominated agencies. |
| Custom Manufacturing & Project-Based Supply | Drawing-based production, special lengths, and grade substitutions engineered to match site and design requirements. |
| Export-Grade Packaging & Container Planning | Sea-worthy packing, fumigated pallets, and optimized container loading to minimize transit damage and logistics costs. |
| Multi-Industry Project Experience | Proven supply for oil & gas, power generation, marine, petrochemical, water treatment, and heavy engineering sectors. |
| Responsive RFQ & Technical Support Team | Fast quotations, material selection guidance, and documentation support throughout the procurement lifecycle. |
| Established Global Supply Network | Reliable exports to 50+ countries with repeat buyers and long-term project partnerships. |
Key Features of Gunmetal Pipe and Tube
- β Excellent corrosion resistance
- β High strength and durability
- β Excellent machinability for precise applications
- β Good thermal conductivity
- β Low friction properties for efficient flow
- β Versatile for various industrial applications
Technical Overview of Gunmetal
| Product | Composition | Usage | Standards |
|---|---|---|---|
| Gunmetal Pipes | Copper 88%, Tin 10%, Zinc 2% | Used in water supply and drainage systems | ASTM B271, EN 1982, UNS C83600 |
| Gunmetal Tubes | Copper 85%, Tin 10%, Lead 5% | Commonly applied in hydraulic applications | ASTM B30, EN 12420, UNS C84400 |
| Gunmetal Fittings | Copper 90%, Tin 8%, Zinc 2% | Utilized in steam and gas fittings | ASTM B62, EN 1982, UNS C83600 |
Specifications Table
| Material | Gunmetal |
|---|---|
| Grades | BS 1400 LG2, ASTM B271 |
| Standard | ASTM B61, ASTM B62 |
| Size Range | 1/2 inch to 12 inch (15 mm to 300 mm) |
| Length | 6 meters, 12 meters or custom lengths |
| Form | Pipe and Tube |
Available Grades Table
| Product | Composition | Applications |
|---|---|---|
| Gunmetal Pipes | Copper: 88%, Tin: 10%, Zinc: 2% | Marine applications, water supply systems |
| Gunmetal Tubes | Copper: 85%, Tin: 10%, Lead: 5% | Heat exchangers, hydraulic systems |
| Gunmetal Fittings | Copper: 87%, Tin: 8%, Nickel: 5% | Pneumatic systems, valve components |
| Gunmetal Bars | Copper: 90%, Tin: 8%, Iron: 2% | Machined parts, decorative applications |
| Gunmetal Plates | Copper: 86%, Tin: 12%, Zinc: 2% | Structural applications, pressure vessels |
Available Sizes of Gunmetal Pipe and Tube (MM)
| Size (MM) | Size (MM) |
|---|---|
| 15 | 20 |
| 25 | 32 |
| 40 | 50 |
| 63 | 75 |
| 90 | 100 |
| 110 | 125 |
| 140 | 150 |
| 160 | 180 |
| 200 | 250 |
| 300 | 350 |
Chemical Properties of Gunmetal Pipe and Tube
| Element | Composition (%) |
|---|---|
| Copper (Cu) | 85.0 - 90.0 |
| Tin (Sn) | 5.0 - 7.5 |
| Lead (Pb) | 1.0 - 2.0 |
| Zinc (Zn) | 0.5 - 3.0 |
| Iron (Fe) | 0.5 - 1.0 |
| Nickel (Ni) | 0.0 - 1.0 |
| Phosphorus (P) | 0.0 - 0.5 |
| Aluminum (Al) | 0.0 - 1.0 |
Mechanical Properties of Gunmetal Pipe and Tube
| Property | Value |
|---|---|
| Tensile Strength | 210-260 MPa |
| Yield Strength | 100-140 MPa |
| Elongation | 5-15% |
| Hardness (Brinell) | 80-100 HB |
| Modulus of Elasticity | 110 GPa |
Gunmetal Pipe and Tube β Physical & Thermal Properties
Density of Gunmetal Pipe and Tube
| Property | Metric | Imperial |
|---|---|---|
| Density | 8.5 g/cmΒ³ | 0.307 lb/inΒ³ |
Melting Point of Gunmetal Pipe and Tube
| Property | Metric | Imperial |
|---|---|---|
| Melting Point | 1000 - 1100 Β°C | 1832 - 2012 Β°F |
Specific Heat of Gunmetal Pipe and Tube
| Specific Heat of Gunmetal Pipe and Tube | ||
|---|---|---|
| Specific Heat (J/kgΒ·K) | Temperature Range (Β°C) | Condition |
| 380 | 20 - 100 | Solid |
| 400 | 100 - 500 | Solid |
| 420 | 500 - 800 | Solid |
Electrical Resistivity of Gunmetal Pipe and Tube
| Electrical Resistivity | ||
|---|---|---|
| Value (¡Ω·m) | Temperature (°C) | Treatment or Condition |
| 50 | 20 | As Cast |
| 55 | 100 | |
| 60 | 200 | |
| 65 | 300 | |
| 70 | 400 | |
Equivalent of Gunmetal Pipe and Tube
| Standard | Werkstoff Nr. | UNS |
|---|---|---|
| BS 1400 LG2 | CuSn10 | C93200 |
| ASTM B30 | CuSn12 | C90700 |
Manufacturing Process & Heat Treatment of Gunmetal Pipe and Tube
Annealing
Annealing is a heat treatment process used to soften gunmetal, relieve stress, and enhance ductility. The material is heated to a temperature of approximately 400-600Β°C and then allowed to cool slowly in a furnace or air. This process helps to refine the grain structure and improve machinability.
Forging
Forging involves shaping gunmetal through mechanical deformation under heat. The metal is heated to a temperature of about 700-800Β°C and then shaped using hammers or presses. This process enhances the strength and toughness of the material by aligning the grain structure in the direction of the applied force.
Hardening & Tempering
| Process | Temperature Range (Β°C) | Quenching Medium | Purpose |
|---|---|---|---|
| Hardening | 800-900 | Water or Oil | To increase hardness and strength by transforming the microstructure. |
| Tempering | 200-500 | Air | To reduce brittleness and improve toughness after hardening. |
| Stress Relieving | 300-600 | Air | To eliminate residual stresses from machining and forming processes. |
The combination of these processes ensures that gunmetal pipes and tubes exhibit optimal mechanical properties, making them suitable for various industrial applications.
Various Types
Gunmetal Pipe
- Diameter: 1/2" to 6", Length: 6m
- Condition: ASTM B271, Standard
- Applications: Plumbing, Marine, Industrial Valves
Gunmetal Tube
- Diameter: 1" to 4", Length: 3m
- Condition: EN 1982, High Quality
- Applications: Heat Exchangers, Oil and Gas
Gunmetal Seamless Pipe
- Diameter: 3/4" to 5", Length: 6m
- Condition: ASTM B16.22, Seamless
- Applications: Hydraulic Systems, Water Transport
Gunmetal Welded Tube
- Diameter: 1" to 6", Length: 3m
- Condition: ISO 9001, Welded
- Applications: Structural Applications, Machinery
Applications & Uses of Stainless Steel and Alloy Products
- Oil & Gas Industry: Pipelines, process piping, and high-pressure fluid handling systems.
- Petrochemical & Refineries: Reactors, heat exchangers, and chemical processing units.
- Water Treatment Plants: Filtration systems, storage tanks, and corrosion-resistant piping.
- Pharmaceutical Industry: Hygienic piping, sanitary fittings, and cleanroom equipment.
- Food & Beverage: Processing lines, storage vessels, and contamination-free pipelines.
- Automobile & Engineering: Exhaust systems, structural parts, and precision components.
- Power & Energy Sector: Boilers, condensers, and turbine piping systems.
- Marine & Offshore: Shipbuilding, offshore platforms, and coastal infrastructure.
- Construction & Infrastructure: Structural frameworks, bridges, and industrial buildings.
Industries We Serve
Our stainless steel, alloy steel, and high-performance metal products are widely used across the following industries:
Latest Price List of Gunmetal Pipe and Tube
| Material Grade | Thickness | Price (USD / Kg) | Price (INR / Kg) |
|---|---|---|---|
| Gunmetal | 3 mm | $5.00 β $5.50 | βΉ415 β βΉ456 |
| Gunmetal | 6 mm | $5.20 β $5.70 | βΉ432 β βΉ472 |
| Gunmetal | 10 mm | $5.40 β $5.90 | βΉ450 β βΉ490 |
Note: Prices are indicative and may vary based on size, quantity, raw material cost, and delivery location. Contact us for the latest quotation for Gunmetal Pipe and Tube.
MOQ & Payment Terms for Metal Products
- Minimum Order Quantity (MOQ): Typically 25β100 Kg, depending on product type, dimensions, and material grade.
- Payment Terms: Flexible terms based on order volume, grade selection, and delivery location. Advance payment or mutually agreed commercial terms apply.
Steel Export Packaging & International Shipping Services from India
We provide professional steel export packaging and global shipping services from India, ensuring stainless steel and alloy steel products are securely packed, documented, and delivered to international ports including the Middle East, Europe, Africa, and Southeast Asia with full compliance to international trade and quality standards.
- Seaworthy Export Packing: Fumigated wooden crates with waterproof lining to protect steel products during ocean transit.
- Palletised & Marked Shipments: Heat number identification, batch labeling, and export documentation for traceability and customs clearance.
- Container Stuffing & Inspection: Supervised loading with photographs, weight checks, and final quality inspection before dispatch.
We Export Stainless Steel & Alloy Products to 50+ Countries Worldwide
| Global Export Destinations | |||||
|---|---|---|---|---|---|
| United States | Canada | Mexico | United Kingdom | Germany | Netherlands |
| Italy | Spain | South Africa | Australia | India | Korea |
| United Arab Emirates | Saudi Arabia | Qatar | Kuwait | Oman | Bahrain |
| Singapore | Malaysia | Indonesia | Dubai | Riyadh | Dammam |
Our Certifications & Export Compliance Standards
We are a certified stainless steel and alloy steel manufacturer and global exporter from India, operating under internationally recognized quality, safety, and export compliance standards to ensure reliable supply for international buyers and industrial projects.
GST Registered Company β Government of India
ISO 9001:2015 β Quality Management System
ISO 1002:2018 - Quality Management System
Udyam Registration β MSME, Government of India
Testing Process & Quality Assurance β Ragnar Metals & Tubes
At Ragnar Metals & Tubes, our testing process ensures the safety, reliability, and performance of stainless steel and alloy steel products supplied for global industrial and infrastructure projects. Each batch is verified from raw material selection to final dispatch under internationally recognized standards including ASTM, ASME, ISO, DIN, and EN.
Detects internal flaws using high-frequency sound waves
Measures yield strength, elongation, and material durability
Evaluates toughness under low-temperature and high-stress conditions
Ensures smoothness, coating quality, and visual compliance
Enhances hardness, strength, and corrosion resistance
Measures resistance to deformation and wear
Documentation & Global Compliance
- β EN 10204 3.1 / 3.2 Mill Test Certificates (MTC)
- β Batch-wise quality traceability and inspection records
- β Third-party inspection by SGS, TUV, Bureau Veritas & Lloydβs
- β Export documentation support for customs and international shipping
Supporting supply for oil & gas, petrochemical, power generation, marine, infrastructure, and heavy engineering industries worldwide.
Related Products
Explore our full range of stainless steel and alloy steel products including pipes, tubes, fittings, flanges, sheets, plates, spools, fasteners, round bars, and special grades manufactured for industrial, infrastructure, and global export applications.
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Frequently Asked Questions
About Ragnar Metals & Tubes
- β Leading manufacturer, stockist, and exporter of stainless steel and alloy steel products for industrial and infrastructure projects
- β ISO 9001:2015 certified quality management system ensuring consistent product reliability and compliance
- β Specialized in precision pipes, tubes, fittings, flanges, sheets, plates, fasteners, and round bars
- β Modern processing and testing facilities with advanced manufacturing and inspection equipment
- β Custom-engineered solutions based on client drawings and technical specifications
- β Full material traceability with EN 10204 3.1 / 3.2 mill test certification
- β Compliance with ASTM, ASME, DIN, EN, and ISO international standards
- β Trusted global supplier supporting oil & gas, petrochemical, power, marine, and heavy engineering industries