We would like to introduce ourselves as RR Shramik (Ram Ratna Wires Limited) – a part of the USD 1.6 Billion RR Global conglomerate, with a presence in more than 90 countries and group brands like RR Kabel, RR Shramik, RR Parkon, and many more.
We manufacture Copper Seamless Tubes – Grade DHP (De-oxidized High Residual Phosphorus Copper) at two advanced production facilities:
- Vadodara, Gujarat – with an installed capacity of 12,000 MTPA
- Bhiwadi, Rajasthan – with an installed capacity of 36,000 MTPA
Both plants are equipped with state-of-the-art Cast and Roll Technology, incorporating advanced processes such as Online Eddy Current Testing and Annealing (both inside and out) to ensure the highest quality standards.
Our products conform to international norms and are designed for easy bending, expansion, swaging, brazing, and soldering.
Our copper tubes comply with all major international standards such as IS 10773, IS 2501, JIS H3300, ASTM B68, B75, B280, B287 1-2, E243, EN 12735-1, and AS/NZS 1571, and are widely used across industries including ACR, HVAC, VRV/VRF systems, heat exchangers, condenser coils, medical gas piping, plumbing, and construction projects.
Click here to see the detailed production process
| QUALITY ASSURANCE PROCESS | |
|---|---|
| DETECTION PROJECT | TESTING EQUIPMENTS |
| CHEMICAL COMPOSITION | SPECTROMETER |
| HARDNESS TESTING | VICKERS HARDNESS TESTER |
| TENSILE STRENGTH & ELONGATION TESTING | UTM (UNIVERSAL TENSILE TESTING MACHINE) |
| GRAIN SIZE TESTING | METALLURGICAL MICROSCOPE |
| DIMENSIONS | VERNIER AND MIRCOMETER |
| DRIFT EXPANDING TEST | FLARING AND SWAGING MACHINE |
| FLATTENING TEST | UNIVERSALTENSILE MACHINE OR HAMMER |
| NON-DESTRUCTIVE TEST | |
| 1. EDDY CURRENT TEST | ONLINE/OFFLINE EDY CURRENT |
| 2. HYDROSTATIC TEST | HYDRAULIC TESTING MACHINE |
| 3. PNEUMATIC TEST | PNEUMATIC TESTING MACHINE |
| HYDROGEN EMBRITTLEMENT TEST | HYDROGEN EMBRITTLEMENT MACHINE |
| RESIDUE TEST | CONTAMINATION TEST |
Click here to see the detailed testing process
Our Product Range Includes:
- LWC (Level Wound Coil) Copper Tubes – Manufactured as per IS 10773 (HVAC) and IS 2501 (General Engineering Purpose), Compliant as per ASTM B68, ASTM B280and JIS H3300 standards, (Temper: Light Drawn H/2) (Thickness: 0.27mm to 1.6mm).
- Jumbo Coils Seamless coils weighing 300–1000 kg, packed in ETS, compliant with ASTM B280, IS 10773, JIS H3300, AS/NZS 1571, AS 1432, and EN 12735 standards.
- PCC (Pancake Coils) Available in 15.24 meters (50 feet) in length (Temper: Light Drawn H/2) (Thickness: 0.27mm to 1.6mm), Manufactured as per IS 10773.
- Straight Copper Tubes Precision-engineered for various applications Manufactured as per IS 10773 (HVAC) and IS 2501 (General Engineering Purpose)
- VRV/VRF Systems Offering both PCC (Pancake Coils) and Straight Tubes.
- PVC-Coated Copper Tubes For enhanced corrosion resistance, manufactured as per IS 2501.
- Capillary Tubes Manufactured as per ASTM B360 standards.
- Medical Grade Copper Tubes Specially designed for hospitals and COVID-19 centres.
- IGT (Inner Grooved Tubes) Compliant with GB/T 20928, and JIS H3300 standards and manufactured as per IS 10773.
Global Standards
-
BIS
- IS 10773: 2025 – wrought copper tubes used in refrigeration and air-conditioning (AC) purposes
- IS 2501: 1995 – Solid Drawn Copper Tubes for General Engineering Purposes
-
U.S. Standards ASTM / ASME
- ASTM B68– Seamless Copper Tube, Bright Annealed (Straight Lengths)
- ASTM B75 – Seamless Copper Tube, Annealed or Drawn (General Purpose)
- ASTM B88 – Seamless Copper Water Tubes (Type K, L, M)
- ASTM B280 – Seamless Copper Tube for Air Conditioning & Refrigeration (ACR)
- ASTM B819 – Seamless Copper Tube for Medical Gas Systems
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Japanese Standards (JIS)
- JIS H3300 – Copper and Copper Alloy Tubes
-
British Standards (BS / EN)
- BS EN 1412 – Copper and Copper Alloys — European Numbering System (e.g., CW024A = Cu-DHP)
- BS EN 1057 – Copper and Copper Alloys — Seamless, Round Copper Tubes for Water and Gas
- BS EN 12735-1– Copper Tubes for Air Conditioning & Refrigeration (Seamless, Round)
- BS EN 1412 – Copper and Copper Alloys — European Numbering System (e.g., CW024A = Cu-DHP)
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Gulf Standards
- GSO EN 12735-1 / 1057 (Adopted from European Standards)
- SASO 499/2019 – Saudi Standard for Copper Tubes for Plumbing and HVAC
- QCS (Qatar Construction Specification) follows BS EN 1057
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LRS Approved Copper Tubes
- ASTM B111 or BS EN 12451
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NZS
- NZS1571 – Seamless Tubes for air conditioning and refrigeration.
-
AS
- AS1432 – Copper tubes for plumbing, gas fitting and drainage application.
- AS1571 – Seamless Tubes for air conditioning and refrigeration.
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