Brass threaded pipes and copper external threaded pipes are essential components in various industrial applications, especially in the fields of air conditioning, refrigeration, and heat exchangers. This article explores the materials, drawing formats, production processes, surface roughness, treatments, inspection instruments, and applications of these critical components.
Brass threaded pipes are typically composed of an alloy of copper and zinc. The exact composition may vary, but it generally consists of approximately 60-80% copper and 20-40% zinc. Brass provides an ideal balance between strength, corrosion resistance, and malleability, making it a preferred material for threaded pipes.
Copper external thread pipes are predominantly made of pure copper, also known as electrolytic or ETP copper. This high-purity copper, typically containing over 99.9% copper, offers exceptional thermal and electrical conductivity and corrosion resistance. These properties make it an ideal choice for applications where heat exchange and durability are critical.
The drawing format for brass threaded pipes and copper external thread pipes is vital for precise manufacturing. These drawings provide detailed information about the dimensions, tolerances, and specifications of the pipes. Commonly used formats include AutoCAD drawings, PDFs, or blueprints, which are essential references for the production process.
The production process of brass threaded pipes and copper external thread pipes involves several steps:
The surface roughness of these pipes is a critical factor as it affects their functionality and appearance. To enhance their performance and aesthetics, various surface treatments may be applied:
The quality of brass threaded pipes and copper external thread pipes is closely monitored through various inspection instruments, including:
Brass threaded pipes and copper external thread pipes find application in diverse industries:
TORICH is an enterprise that has been producing precision steel pipes and steel pipe processing for over 20 years, with a factory area of approximately 20000 square meters
The main products produced are carbon steel and alloy steel grade seamless steel pipes, welded precision steel pipes, DOM steel pipes, seamless and welded stainless steel pipes.And our separate workshop also produce machined cast iron parts and cast steel parts, as well ad customized precision parts and difficult precision parts. Our strength is with in our ability to produce metal parts of higher quality control in an integrated process, from mapping and mould design, to casting, forging, machining, heat treatment, surface treatment, assembly and testing.
TORICH team is familiar with the quality requirements and process standards of precision parts and steel tubes of leading industrial companies at home and abroad, constantly optimizes the production and management level, and constantly looks for like-minded excellent suppliers, which enable us to reduce the production cost and have a comparative advantage over many of our competitors.
In the field of processing, TORICH has 18 sets 4-axis/3-axis CNC machines and over 30 sets of CNC lathers. The machining center is capable of machining 1100x600x800mm parts and the CNC lathes are capable of processing 550x1500mm parts. We specialize in machining stainless steel, alloy steel and other hard metals, as well as carbon steel, aluminium, and copper, with a dimensional accuracy of 0.01mm.
As of 2023, TORICH has perfectly cooperated with more than 50 countries, including Russia, India, Australia, the United Kingdom, France, the United States, Canada, Brazil, and Egypt. Quality and reputation are always our first concerns, with the aim of well serving every customer who trusts in us. TORICH looks forward to partnering with customers all over the world.




1. Are you manufacturer or trader ?
TORICH is manufacturer based trading company.
2. How can we get samples ?
Ready to ship samples can be delivered within 3 working days, developing samples need to be confirmed with our engineer and sales team.
3.How can I get a quote?
Detailed drawings (PDF/STEP/IGS/DWG...) with material, quantity and surface treatment information.
4. Can I get a quote without drawings?
Sure, we appreciate to receive your samples, pictures or drafts with detailed dimensions for accurate quotation.
5. What is the lead time?
15-60 day depending on different order quantity and products.
6. Can you provide samples before mass production?
Sure, sample fee is needed, will be returned when mass production if possible.
7. What is your payment terms?
30% deposit, the balance 70% before shipping.
8. What is your packing method?
Safty and strong packing suitable for sea shipping and air shipping.
9. What will you do if we receive poor quality parts?
Please kindly send us the pictures, our engineers will find the solutions and remake them for you asap.