--- title: C44300 Admiralty Brass Condenser Tube, Made in USA | Ameritube description: C44300 arsenical admiralty brass seamless condenser and heat exchanger tube drawn in Hillsboro, Texas to ASME SB-111. Refinery-proven since 2007. Full MTRs. Request a quote. --- 100% Made in USA · Hillsboro, TexasISO 9001:2015 certified · [(254) 580-9888](tel:+12545809888) [![](https://ameritube.net/hs-fs/hubfs/raw_assets/public/ameritube-2026/images/logo.jpg?width=52&height=52&name=logo.jpg)AmeritubeCopper tube mill](https://ameritube.net/?hsLang=en) [Products](https://ameritube.net/products?hsLang=en)[Capabilities](https://ameritube.net/capabilities?hsLang=en)[Industries](https://ameritube.net/markets?hsLang=en)[Quality](https://ameritube.net/quality?hsLang=en)[Resources](https://ameritube.net/resources?hsLang=en)[Company](https://ameritube.net/company?hsLang=en) [Talk to the quote desk(254) 580-9888](tel:+12545809888)[Request a quote](https://ameritube.net/request-a-quote?hsLang=en) [tel:+12545809888](tel:+12545809888) Menu - [Products](https://ameritube.net/products?hsLang=en) - [Capabilities](https://ameritube.net/capabilities?hsLang=en) - [Industries](https://ameritube.net/markets?hsLang=en) - [Quality](https://ameritube.net/quality?hsLang=en) - [Resources](https://ameritube.net/resources?hsLang=en) - [Company](https://ameritube.net/company?hsLang=en) - [Call the mill](tel:+12545809888)[Request a quote](https://ameritube.net/request-a-quote?hsLang=en) ![](https://ameritube.net/hs-fs/hubfs/new-site/cast/draw-bench.jpg?length=960&name=draw-bench.jpg) Products / Copper & Brass # C44300 admiralty brass, the refinery condenser standard. Arsenical admiralty brass has cooled refinery overheads and power station condensers for a century. Ours is pilgered and drawn in Hillsboro from qualified cast shells, with 30% reduction per pass, which is how we shipped 12,000 tubes to an Exxon Mobil exchanger with zero customer rejections. [Quote C44300](https://ameritube.net/products/c44300-admiralty-brass#quote) [Or call the quote desk(254) 580-9888](tel:+12545809888) C44300 at a glance USAPilgered, drawn, annealed, and tested in Hillsboro, Texas, from qualified cast shells 100%Eddy current tested before shipment B111Supplied to ASTM B111, ASME SB-111, ASTM B395 MTRFull mill test report with every order **Alloy**C44300 Admiralty Brass **Family**Copper & Brass **Supplied to**ASTM B111, ASME SB-111, ASTM B395, ASME SB-395 **Typical service**Refinery condensers, Surface condensers, Feedwater heaters **Size range**1/2" to 2" OD, .035" to .109" wall, lengths to 48'1" and U-bends **Tempers**Annealed (O61), light drawn (H55) **Testing**100% eddy current; hydrostatic, air-under-water, ammonia vapor (stress corrosion) on request **Origin**Pilgered, drawn, annealed, straightened, and tested in Hillsboro, Texas, from qualified cast shells. In-house melting of this alloy is planned. Pilgered, drawn, annealed, and tested in Hillsboro, Texas ## What C44300 is Admiralty brass is a 70/30 copper-zinc brass with about 1% tin for corrosion resistance and a small arsenic addition to stop dezincification. It combines the thermal conductivity of brass with much better resistance to fresh, brackish, and mildly polluted cooling water than plain yellow brass. It is the default tube for refinery surface condensers, crude unit overhead exchangers, and power station condensers on fresh or brackish water, and it is the alloy that first put Ameritube in front of the oil refining industry. ## The 12,000-tube lesson In 2007 Ameritube drew 12,000 C44300 tubes, 3/4" x .083" and 3/4" x .065" minimum wall, for a heat exchanger builder supplying Exxon Mobil and Petrobras. Each tube took four draws at more than 30% reduction, with a stress relief anneal in between. The customer rejected none. We rejected over 1,500 in-process, because a 30% draw finds the sub-surface defects that a 10% tube-sheet roll never would. That job is why every tube we sell today is worked hard and tested at 100%, and it is why we moved toward making our own shells instead of trusting someone else's. ## Standards we supply to - ASME SB-111 / ASTM B111, condenser and heat exchanger tube - ASME SB-395 / ASTM B395, U-bend tube - ASTM B543 welded equivalent on request ## Chemical composition | Element | Requirement | | --- | --- | | Copper | 70.0 to 73.0% | | Tin | 0.9 to 1.2% | | Arsenic | 0.02 to 0.06% | | Lead | 0.07% max | | Iron | 0.06% max | | Zinc | Remainder | ## Typical mechanical properties, annealed | Property | Value | | --- | --- | | Tensile strength | 45,000 psi min (310 MPa) | | Yield strength | 15,000 psi min (105 MPa) | | Elongation in 2" | 30% min | | Density | 0.308 lb/in3 (8.53 g/cm3) | ## Where it is used - **Refinery exchangers**: crude and vacuum unit overhead condensers, product coolers, reboilers on cooling water. - **Power generation**: surface condensers and auxiliary coolers on fresh and brackish water. - **Chemical processing**: cooling water exchangers where chlorides are moderate. - **HVAC**: large chiller condensers. ## When to choose something else Seawater or heavily polluted water: move to C70600 or C71500 copper-nickel. Ammonia in the cooling water: admiralty is prone to stress corrosion cracking, ask about copper-nickel or stainless. High-velocity seawater: C72200 copper-nickel-chromium. **What to put in your C44300 RFQ** OD, wall (specify MW minimum wall or AW average wall), temper, length or U-bend schedule, quantity, ASME SB-111 or other governing spec, and whether your customer requires ammonia vapor testing or 3rd-party inspection. ### Documents - [C44300 data sheet](https://ameritube.net/hubfs/PDFs/44300.pdf?hsLang=en)PDF - [Ameritube main brochure](https://ameritube.net/hubfs/PDFs/main_brochure.pdf?hsLang=en)PDF - [ISO 9001:2015 certificate](https://ameritube.net/hubfs/PDFs/ISO_CERT.pdf?hsLang=en)PDF ### Related alloys [C12200](https://ameritube.net/products/c12200-dhp-copper?hsLang=en)[C70600](https://ameritube.net/products/c70600-copper-nickel-90-10?hsLang=en)[C71500](https://ameritube.net/products/c71500-copper-nickel-70-30?hsLang=en)[C72200](https://ameritube.net/products/c72200-copper-nickel-chromium?hsLang=en)[SA179](https://ameritube.net/products/sa-179?hsLang=en)[SA213 T2](https://ameritube.net/products/sa213-t2?hsLang=en) ### Industries [Heat Exchanger](https://ameritube.net/markets/heat-exchanger?hsLang=en)[Oil & Gas](https://ameritube.net/markets/oil-gas?hsLang=en)[Power Generation](https://ameritube.net/markets/power?hsLang=en) Alloy: C44300 Admiralty Brass × Copper & Brass (Made in USA) **C12200**DHP Copper **C44300**Admiralty Brass **C70600**Copper Nickel 90/10 **C71500**Copper Nickel 70/30 **C72200**Copper Nickel Chromium Carbon & Alloy Steel **SA179**Seamless Carbon Steel **SA213 T2**Alloy Steel Boiler Tube **SA213 T5**Alloy Steel Boiler Tube **SA213 T9**Alloy Steel Boiler Tube **SA213 T11**Alloy Steel Boiler Tube **SA213 T12**Alloy Steel Boiler Tube **SA213 T22**Alloy Steel Boiler Tube Stainless & Duplex **TP304 / 304L**Stainless Steel **TP316 / 316L**Stainless Steel **TP321 / 321H**Stainless Steel **TP347 / 347H**Stainless Steel **SA268**Ferritic Stainless **SA249**Welded Stainless **SA789 S32205 / S31803**Duplex Stainless Nickel Alloys **Alloy 200**Nickel 200 (N02200) **Alloy 276**C-276 (N10276) **Monel 400**Nickel Copper (N04400) **Monel 405**Free-Machining Nickel Copper (N04405) **Alloy 600**Inconel 600 (N06600) **Alloy 625**Inconel 625 (N06625) **Alloy 800**Incoloy 800 (N08800) **Alloy 825**Incoloy 825 (N08825) Not sure? **Ask us**Describe the service and we will recommend the alloy No match. Pick "Ask us". **ISO 9001:2015**Bureau Veritas certified **Since 2004**Hillsboro, Texas Admiralty brass or copper-nickel? Tap an alloy to open its page | Property | [C44300](https://ameritube.net/products/c44300-admiralty-brass?hsLang=en)Admiralty Brass | [C70600](https://ameritube.net/products/c70600-copper-nickel-90-10?hsLang=en)Copper Nickel 90/10 | [C71500](https://ameritube.net/products/c71500-copper-nickel-70-30?hsLang=en)Copper Nickel 70/30 | | --- | --- | --- | --- | | Alloy family | 70/30 brass with tin and arsenic | 90/10 copper-nickel | 70/30 copper-nickel | | Fresh or brackish cooling water | Excellent | Excellent | Excellent | | Clean seawater | Fair | Good | Better | | Polluted or sulfide water | Poor | Fair | Good | | Ammonia in the water | Prone to cracking | Resistant | Resistant | | Relative cost | Lowest | Higher | Highest | | Typical pick | Refinery and power condensers on fresh water | Marine piping, coastal condensers | Naval condensers, high velocity, polluted harbor water | Not sure? Put the service conditions in the quote notes and we will recommend the alloy. ### Have a spec? Send it. Alloy, OD, wall, length, quantity. An engineer on the Hillsboro quote desk answers within one business day. 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