H62 Brass Tube Manufacturer | Cold Drawn Seamless H62 Brass Pipe For CNC Machining, Fittings & Industrial Applications

As a reliable China‑based H62 brass tube manufacturer, we focus on cold drawn seamless H62 brass pipe tailored for global industrial buyers. If you have been troubled by unstable alloy composition, mixed grades, poor dimensional accuracy, high scrap rate in CNC turning, fitting fabrication or other industrial processing, our H62 seamless brass pipe is engineered to solve these common sourcing pain points.

H62 brass also known as CuZn38, delivers balanced mechanical strength, good ductility and excellent machinability. Many imported brass pipes are produced by basic extrusion process, which only reaches tolerance around ±0.2 mm. This leads to uneven wall thickness, ovality, inner burrs and scratches, resulting in defective fittings, assembly failure and heavy production losses.

Our cold‑drawn seamless production strictly controls OD and wall‑thickness tolerance up to ±0.05 mm. Superior straightness and smooth inner‑outer surface greatly reduce reject rate for your CNC machining, fitting manufacturing and general industrial applications. We provide full temper range: Soft(M), Half‑hard(Y2), Hard(Y). Our technical team will recommend the most suitable temper based on your actual processing: heavy bending, flaring, threading or press‑fit assembly to prevent cracking of finished fittings.

H62 (also known as C28000, CuZn40, CW505L) is a copper-zinc alloy containing approximately 60.5–63.5% copper with the balance zinc. It is the most widely used brass grade for tube applications, offering a balance of strength, machinability, and corrosion resistance at a cost lower than higher-copper grades like H65 and H68.

The key performance advantage: H62 brass tube delivers tensile strength of 340–540 MPa depending on temper, with good machinability and adequate corrosion resistance for general purpose applications. It is the standard choice for CNC machined fittings, valve bodies, heat exchanger tubes, and general industrial tubing.

How to choose:

• Choose H62 (C28000) when you need higher strength and good machinability for CNC machined fittings, valve bodies, and heat exchanger tubes.
• Choose H65 (C27000) when you need better cold formability and corrosion resistance for bent tubes, heat dissipation components, and marine hardware.
• Choose H68 (C26200) when you need maximum ductility for complex deep drawn parts and bellows.

Not sure whether H65 or H62 is right for your application? Read the full brass tube selection guide first, then confirm your specification below.

An Italian manufacturer of shell-and-tube heat exchangers for the HVAC and refrigeration industry required H62 brass tube for condenser and evaporator production. Their technical requirements were specific:

• Tight dimensional tolerance. Tube OD and wall thickness had to meet ±0.05 mm for reliable tube-to-tubesheet fit-up.
• Uniform wall thickness. Wall thickness had to be consistent around the circumference and along the length - critical for the tube expansion process.
• Verified grade. Every batch had to be confirmed as H62 - no mixed grades, no substitutions.
• Batch-specific documentation. Material certificates had to be batch-specific with actual chemical composition and mechanical properties - not generic.
• Soft temper for expansion. The tube had to be supplied in Soft (M) temper with sufficient elongation for expansion without cracking.
• Reliable delivery. Standard sizes had to ship within a defined lead time to meet their production schedule.

Supplying H62 Brass Tube to an Italian Heat Exchanger Manufacturer

Supplying H62 Brass Tube to an Italian Heat Exchanger Manufacturer

• Cold drawn seamless process. Our H62 brass tube is cold drawn - delivering dimensional tolerance down to ±0.05 mm with smooth inner bore and uniform wall thickness. This matters for CNC machining, press-fit assemblies, and precision fittings.
• Single-grade, single-heat verified. Every shipment is verified as H62 with batch-specific Mill Test Certificate. We do not mix grades. No substitutions without written approval.
• Full form and size range. Outside diameter 3 mm to 200 mm, wall thickness 0.5 mm to 20 mm, custom cut lengths. Soft (M), Half-Hard (Y2), and Hard (Y) tempers.
• Fast delivery from stock. Standard sizes ship in 7–15 days; custom sizes confirmed at order review. Flexible MOQ - trial orders accepted.
• Technical support for grade and temper selection. Send us your application - CNC machining, bending, flaring, expansion - we will recommend the right alloy and temper.
• Competitive pricing from China. Direct factory supply with flexible MOQ for trial orders.

HSMetal is a China-based manufacturer and supplier of high-performance copper and copper alloy products, serving HVAC, plumbing, industrial equipment, and electrical customers worldwide. We specialize in cold drawn seamless brass tube, copper tube, and copper alloy tube in grades including H62, H63, H65, H68, C28000, C27000, C26200, TP2, C12200, and C11000. We supply these materials in straight lengths, pancake coils, and custom cut forms, with custom services including tight-tolerance cold drawing, precision cutting, end finishing, and surface treatment.

We can achieve tight dimensional tolerance up to ±0.05 mm, with full temper options of Soft(M), Half‑hard(Y2) and Hard(Y). Every production batch goes through strict in‑house chemical and mechanical testing. Authentic Mill Test Certificates (MTC) are provided for each shipment, and we support third‑party inspection upon customer request to meet import standards for Europe, North America and other global markets.

More than metal manufacturing, we deliver one‑stop supporting services. We offer precision cutting, chamfering, deburring, straightening and polishing to reduce your internal machining workload. Flexible order volume covers small trial batches for project validation as well as large‑scale mass production for long‑term cooperation. Our technical team provides application‑oriented suggestions on grade and temper selection according to your processing methods and end‑use conditions.

We value long‑term partnership built on reliable quality, transparent quotation, responsive communication and dependable after‑sales support. Whether you need samples for project evaluation or continuous bulk orders, we aim to be your trusted seamless brass tube supplier from China.

Our Factory

 

Aging Treatment Equipment

Aging Treatment Equipment

Annealing Furnace

Straight Pipe Cutting Machine

4-Tensile Testing Machine

4-Tensile Testing Machine

Key Check List

• Verify the grade - confirm C28000 / H62 equivalence.
• Check copper content - Cu 60.5–63.5%.
• Request batch-specific MTC - actual values, not generic.
• Verify dimensional tolerance - OD, wall thickness, ovality, and straightness.
• Confirm temper - Soft (M), Half-Hard (Y2), or Hard (Y).
• Check inner bore surface - no burrs, scratches, or defects.
• Request PMI verification - confirms material authenticity.

Tell us your required outside diameter, wall thickness, length, temper, quantity, and application. We will confirm availability, provide a quotation, and ship with full documentation.

Request a quote →

Or contact our technical team with your machining, bending, and operating medium requirements - we will recommend the right alloy and temper for your design.

Explore our other brass products → H65 Brass Tube | H68 Brass Tube | C36000 Free-Cutting Brass Rod | H63 Brass Tube

Q1: What is H62 brass tube used for?

A: H62 brass tube is used for CNC machined fittings, valve bodies, connectors, heat exchangers, plumbing, marine hardware, and general industrial tubing. It is chosen when you need a balance of strength, machinability, and corrosion resistance at a cost lower than H65 or H68.

Q2: What is the difference between H62 and H65?

A: H62 contains 60.5–63.5% Cu; H65 contains 63.0–68.5% Cu. H62 offers higher strength and better machinability; H65 offers better cold formability and corrosion resistance. Choose H62 for CNC machining and fittings; choose H65 for bending and corrosion resistance.

Q3: What is the difference between H62 and H68?

A: H68 contains 67.0–70.0% Cu - it offers higher ductility and better cold working performance for complex deep drawn parts and bellows. Choose H62 for general purpose; choose H68 for maximum ductility.

Q4: What temper should I choose for CNC machining?

A: Choose Half-Hard (Y2) temper for CNC machining - it offers tensile strength 440–540 MPa and good chip control. Choose Soft (M) for bending and flaring. Choose Hard (Y) for structural applications.

Q5: Is H62 brass suitable for water applications?

A:Application suitability depends on the water chemistry, service conditions, regulatory requirements and applicable material specification. Do not assume that general H62 brass is automatically approved for every drinking-water application.

Q6: Can H62 brass tube be used in seawater?

A: Yes, with caution. H62 offers adequate corrosion resistance for marine hardware and plumbing. For severe seawater applications, consider aluminum bronze or cupronickel instead. Always verify the specific medium and temperature with our technical team.

Q7: What standards cover H62 brass tube?

A: H62 brass tube is covered by ASTM B135 (Seamless Brass Tube), GB/T 1527 (Copper and Copper Alloy Drawn Tubes), and EN 12449 (Copper and Copper Alloys - Seamless Tubes).

Q8: What is the maximum service temperature of H62 brass tube?

A: H62 brass tube is suitable for continuous service up to approximately 200°C in air. Above this, oxidation and strength reduction increase. Avoid ammonia-containing environments due to stress corrosion cracking risk.

Q9:What information should I send for an H62 brass tube quotation?

A:The most useful information is OD, ID or wall thickness, length, temper, quantity, tolerance, application and required documentation. 

Q10: What is the one-line rule for choosing H62 brass tube?

A: Choose H62 brass tube when you need a balance of strength, machinability, and corrosion resistance for CNC machining, fittings, and heat exchangers at a cost lower than H65 or H68. For better formability, choose H65. For maximum ductility, choose H68.

Q11: What are the advantages of cold drawn seamless H62 brass pipe vs extruded H62 tube?

A: Ordinary extruded H62 brass tube usually has tolerance around ±0.2 mm. Our cold drawn seamless H62 brass pipe achieves tight tolerance up to ±0.05 mm, better straightness and smoother inner‑outer surface. It performs far better for high‑requirement scenarios including CNC machining, precision brass fittings and industrial assembly. For more knowledge about brass tube process and grade comparison, check our Brass Tube Buying Guide.

Hot Tags: H62 brass tube manufacturer, cold drawn seamless H62 brass pipe, C28000 seamless brass tube, H62 brass for CNC machining, H62 brass fittings tube, industrial H62 brass pipe, CuZn38 brass tube