Certificates | ISO 9001:2015 Certified Copper Nickel Stub End Manufacturer

Quality Management Certificates

Sunflex Metalloy Pvt. Ltd. is committed to delivering Copper Nickel Collars of the highest quality, backed by internationally recognised quality management certifications and rigorous in-house testing protocols. Our certifications assure buyers worldwide that every CuNi collar — from Copper Nickel Welding Neck Collar to Copper Nickel Stub End Collar — meets the strictest dimensional, chemical and mechanical requirements.

ISO 9001:2015

ISO 45001:2018

Certificate of Incorporation

OHSAS 18001:2007

Material Test Certificates — Copper Nickel Collars

Every supply of Copper Nickel Collars from Sunflex Metalloy is accompanied by a comprehensive Material Test Report (MTR / MTC) conforming to EN 10204 3.1 — the internationally accepted standard for third-party certified material documentation. Our MTCs cover:

Chemical Composition Analysis — Spectrochemical analysis for Cu, Ni, Fe, Mn, Pb, C, S, Zn per ASTM B466 / EN 12449 requirements
Mechanical Properties — Tensile strength, yield strength (0.2% PS) and elongation per ASTM E8 / ISO 6892-1
Hardness Testing — Brinell (HB) or Rockwell (HRB) per ASTM E18 / ISO 6508
Dimensional Inspection — OD, ID, wall thickness, ovality per applicable standard tolerances
Hydrostatic Pressure Test — 100% hydrostatic test as per ASTM B466 / EN 12449
PMI (Positive Material Identification) — XRF-based alloy verification on request
Visual & Surface Inspection — Per applicable standard; free of seams, cracks, laps, and detrimental surface defects
Non-Destructive Testing (NDT) — Eddy current, ultrasonic or dye penetrant testing on request

MTC Details Available On Request

EN 10204 3.1 Mill Test Certificate

Chemical Composition Report

Mechanical Property Report

Dimensional Inspection Report

Hydrostatic Test Certificate

PMI (XRF) Test Report

Visual & Surface Inspection Record

Packing List & Country of Origin

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Standards Compliance — Copper Nickel Collar Certifications

Standard	Scope	Applicable Collar Types
ASTM B466 / ASME SB466	Seamless Copper-Nickel Pipe and Tube	All Collar Types
ASTM B467 / ASME SB467	Welded Copper-Nickel Pipe and Tube	Welding Neck Collar, Stub End Collar
ASTM B111 / ASME SB111	Condenser and Heat-Exchanger Tubes	Weld Neck Collar, Long Stub End Collar
ASTM B543 / ASME SB543	Welded Copper Alloy Heat Exchanger Tubes	Welding Neck Collar, Stub End Collar
ASTM B359 / ASME SB359	Seamless Copper and Copper-Alloy U-Bend Tubes	All Collar Types
ASTM B552 / ASME SB552	Seamless and Welded CuNi Pipe for General Engineering	Short & Long Stub End Collar
ASTM B608	Welded Copper-Alloy Pipe for Use in Air Conditioning	Weld Neck Collar, Short Weld Neck Collar
ASTM B42 / B68 / B75	Seamless / Annealed / General Copper Tubes	All Collar Types
EN 12449 / EN 12451	Seamless Round Tubes / Heat Exchanger Tubes	All Collar Types
EN 1057 / EN 12735-1 / EN 13348	Plumbing / ACR / Medical Copper Tubes	Stub End Collar, Welding Neck Collar
DIN 86037 / DIN 86019	Marine Copper-Nickel Welding Neck Collar & Pipe	All Collar Types
DIN 1785 / DIN 17664	Copper-Nickel Alloy Products	All Collar Types
ISO 1634 / ISO 7268	International CuNi Pipe Standards	All Collar Types
JIS H3300 / JIS H3330	Japanese Copper and Copper Alloy Tubes	All Collar Types
BS 2871 / BS EN 12449 / BS EN 12451	British Standard Copper Tubes	All Collar Types
MIL-T-16420 / MIL-C-15726	Military Specification CuNi Pipe and Tube	Welding Neck Collar, Stub End Collar
NAVSEA T9074	Naval Sea Systems Command Standard	All Collar Types (Naval)
DEF STAN	UK Defence Standard	All Collar Types (Defence)
NORSOK	Norwegian Oil & Gas Industry Standard	All Collar Types (Offshore)

Certifications & Quality Approvals — Sunflex Metalloy Pvt. Ltd.

Quality Management Certificates

Material Test Certificates — Copper Nickel Collars

MTC Details Available On Request

Standards Compliance — Copper Nickel Collar Certifications

Need Certified Copper Nickel Collars with Full MTC Documentation?