16mo3 15mo3 1.5415 DIN Alloy Steel Forging Welding Neck Flange
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Weld Neck Flange
Weld neck flanges are among the most commonly used types in industrial piping systems. They provide the highest level of joint integrity due to their butt-welded connection with pipes. These flanges are ideal for high-pressure and high-temperature applications. Although they are more bulky and expensive compared to other flange types, their durability and reliability make them a preferred choice in critical environments.
Production Instructions
We can produce flanges according to American, German, Italian, European, and Chinese standards, as well as custom designs based on your drawings. Our diameter range spans from DN15 to DN3000, with pressure ratings up to 2500LBS. Flanges are available in carbon steel, stainless steel, alloy steel, and duplex ferritic-austenitic steel.
Flange Standards
American Standard
ASME B16.5, ASME B16.47, ANSI B16.5, API605, AWWA C207
Japanese Standard
JIS / KS 5K / 10K / 16K / 20K / 30K
German Standard
DIN2527, 2528, 2561, 2565, 2566, 2573, 2576, 2627-2638, 2641, 2642, 2655, 2656, 2673, 86029
British Standard
BS4504 PN16 / 25 / 40, BS10 TABLE E / TABLE D
Italian Standard
UNI 2253, 2254, 2276, 2278, 2281, 6084-6093
China Standard
GB/T 13402-92, GB/T9112-9124-2000, HG5010-5028
Production Process
Equipment Exhibition
Product Show
Quality Assurance - TUV Certificate
Quality System Certificate:
We have a Grade A Manufacturing License for Special Equipment, a Pressure Equipment Directive Quality-Assurance System Certificate, a China Classification Society Work Approval Certificate, and a TUV Certificate.
Perfect Inspection Process:
Raw material inspection (5 steps) - Raw materials testing ensures that the materials meet the order requirements.
Process testing (10 steps) - Each processing step is tested to ensure the product meets quality standards.
Factory testing (6 steps) - Ensures a 100% qualified rate to meet customer requirements.
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