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ASTM B111 C71500 Seamless Brass Copper Nickel Boiler Tube / Pipe

Place of Origin China
Brand Name TONGMAO
Certification ISO9001, MTC
Model Number Seamless Copper Pipe
Minimum Order Quantity 3tons
Price Negotiable
Packaging Details Standard Packing
Delivery Time 7-15days
Payment Terms L/C, T/T
Supply Ability 500tons/month

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Product Details
Model NO. ASTM B111 C71500 OD 15.88mm-19.05mm
WT 1.65mm/3.4mm Material Brass
Technology Cold Drawn Phosphorus 0.015-0.040%
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ASTM B111 C71500 Pipe


Seamless Copper Nickel Boiler Tube


Cold Drawn Seamless Copper Tube

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Product Description

ASTM B111 C71500 Seamless Brass Copper Nickel Boiler Tube/Pipe

Type of product Grade(s) Technical requirements
* according to
Copper tube/ pipe UNS C12200 ASTM B111, ASME SB111
BS EN 1057 or closer
Brass tube/pipe UNS C23000, UNS C26200 ...
UNS C44300, UNS C68700 ...
Cupronickel tube/pipe UNS C70600, UNS C71500
UNS C71640


copper Alloy Chemical Composition Temper Mechanical Property
Tensile Strength
Cu-DHP ≥ 99.90 0.015-0.040 R220 ≥ 220 ≥ 40 40-70
Cu-DHP ≥ 99.90 0.015-0.040 R250 ≥ 250 ≥ 30 75-100
Cu-DHP ≥ 99.90 0.015-0.040 R290 ≥ 290 ≥ 3 ≥ 100

Cleanness Requirement - Air Conditioner and Refrigeration Copper Tube

Copper Alloy Temper Cleanness Standard
Cu-DHP R220 ≤ 38mg/m² EN 12735-1
Cu-DHP R2250 ≤ 38mg/m² EN 12735-1
Cu-DHP R290 ≤ 38mg/m² EN 12735-1

Ordinary brass
It is an alloy of copper and zinc.

When the zinc content is less than 35%, zinc can dissolve in copper to form a single phase, known as single phase brass, good plasticity, suitable for hot and cold compression processing.

When the zinc content is 36%~46%, there is a single phase and copper zinc based β solid solution, called dual-phase brass, β phase makes the plasticity of brass decreased and the tensile strength increased, only suitable for hot pressure processing.

If the mass fraction of zinc continues to increase, the tensile strength will decrease and it is useless.

The code name is "H + number", where H represents brass and number represents the mass fraction of copper.

For example, H68 refers to brass with a copper content of 68% and zinc content of 32%. Cast brass is preceded by the word "Z", as in ZH62.

For example, Zcuzn38 is cast brass with 38% zinc content and copper margin.

H90, H80 are single-phase brass, golden yellow, so they are called gold, known as coatings, decorations, MEDALS, etc.

H68, H59 are duplex brass, widely used in electrical structural parts, such as bolts, nuts, washers, springs and so on.

In general, single-phase brass is used for cold deformation processing and dual-phase brass is used for hot deformation processing.

Special brass
The addition of other alloying elements to the common brass in the composition of a plurality of alloys called brass. Often added elements are lead, tin, aluminum, etc., can be called lead brass, tin brass, aluminum brass. The purpose of adding alloying elements. It is mainly to improve the tensile strength to improve the process.

Code: "H + main plus element symbol (except zinc) + mass fraction of copper + mass fraction of main plus element + mass fraction of other elements".

For example, HPB59-1 represents lead brass with 59% copper, 1% lead and zinc margin.

ASTM B111 C71500 Seamless Brass Copper Nickel Boiler Tube / Pipe 0