Generated by Yoast SEO v26.2, this is an llms.txt file, meant for consumption by LLMs. The XML sitemap of this website can by found by following [this link](https://www.langleyalloys.com/sitemap_index.xml). # Langley Alloys: Unique Metals for Demanding Applications > Langley Alloys are global specialist alloy suppliers of super duplex, nickel, stainless and copper alloys for critical industrial applications ## Pages - [Bar \& Tube Sawing](https://www.langleyalloys.com/added-services/bar-sawing/) - [Home](https://www.langleyalloys.com/) - [Pitting Resistance Equivalent Number \>40](https://www.langleyalloys.com/pitting-resistance-equivalent-number-40/) - [Alleima Distribution Partner](https://www.langleyalloys.com/alleima-distribution-partner/) - [Piping Projects](https://www.langleyalloys.com/piping-projects/) ## Posts - [Langley Alloys achieves JOSCAR registration](https://www.langleyalloys.com/2025/06/03/langley-alloys-achieves-joscar-registration/) ## Products - [Alloy 925](https://www.langleyalloys.com/products/alloy-925/) - [2205](https://www.langleyalloys.com/products/2205/) - [Sanmac 2205](https://www.langleyalloys.com/products/sanmac-2205/) - [2507](https://www.langleyalloys.com/products/2507/) - [SAF2507](https://www.langleyalloys.com/products/saf2507/) ## Case Studies - [CS44 \- Ferralium 255 \- Fertiliser Production](https://www.langleyalloys.com/case-studies/cs44-ferralium-255-fertiliser-production/) - [CS74 \- Ferralium 255 \- Propeller](https://www.langleyalloys.com/case-studies/cs74-ferralium-255-propeller/) - [CS69 \- Hiduron 130 \- Actuators](https://www.langleyalloys.com/case-studies/cs69-hiduron-130-actuators/) - [CS66 \- Hiduron 130 \- Impeller Casting](https://www.langleyalloys.com/case-studies/cs66-hiduron-130-impeller-casting/) - [CS63 \- Hiduron 130 \- Glandless Pumps](https://www.langleyalloys.com/case-studies/cs63-hiduron-130-glandless-pumps/) ## Technical Papers - [TP037 \- The Development of Very High Strength Copper Nickel alloys with Resistance to Hydrogen Embrittlement and Stress Corrosion Cracking](https://www.langleyalloys.com/technical-papers/tp37-development-high-strength-copper-nickel-alloys-resistance-hydrogen-embrittlement-stress-corrosion-cracking/): This paper reviews the use of slow strain rate testing as a suitable measure of high\-strength copper alloys where hydrogen embrittlement might be a concern\. The development of Hiduron 220 is considered against these test results\. - [Article 1 \- Ferralium 255 for FGD Applications](https://www.langleyalloys.com/technical-papers/ferralium-255-fgd-applications-3/): Ferralium® 255 has been selected for  use in 'gas path' and liquid/slurry areas of FGD plant\. Long term success of the alloy at PSI Energy \(Duke Energy\), USA is described in detail\. - [TP48 \- Materials for pumping seawater and media with high chloride content](https://www.langleyalloys.com/technical-papers/tp48-materials-for-pumping-seawater-and-media-with-high-chloride-content/): Experimental data in a test\-rig replicating real\-world service of pump shafts demonstrates the improved performance of alloys containing copper with respect to corrosion / erosion corrosion \- in both 13%Cr and 25%Cr alloys, the Cu\-containing variants significantly outperformed the plain alloys\. Ferralium 255 is widely selected for the manufacture of pump shafts for this very reason\.  - [TP044 \- Influence of copper and tungsten addition on the passivity and pitting resistance of super duplex stainless steel](https://www.langleyalloys.com/technical-papers/tp44-influence-copper-tungsten-addition-passivity-pitting-resistance-super-duplex-stainless-steel/): This paper explores the improvements possible in super duplex stainless steel pitting corrosion resistance through the controlled additions of Copper \(Cu\) and tungsten \(W\)\. Immersion in NaCl solution for extended periods is shown to result in a thicker passive layer for the alloy with a higher copper content \(Ferralium 255 meets the general caption of S32550/2507Cu\)\. Further electrochemical studies demonstrate the benefit of higher Cu additions in resisting crevice corrosion in more aggressive solutions\. - [TP008 \- The Effect of Phase Compositions on the Pitting Corrosion of 25Cr Super Duplex Stainless Steel in Chloride Solutions](https://www.langleyalloys.com/technical-papers/tp8-effect-phase-compositions-pitting-corrosion-25cr-super-duplex-stainless-steel-chloride-solutions/): This paper summarises part of the development process of Ferralium® 255\. By carefully controlling of solution annealing process it is possible to optimise the combination of ferritic and austenitic phases present, thereby enhancing the corrosion resistance\. ## Knowledge Hub - [What is CD3MWCuN](https://www.langleyalloys.com/knowledge-advice/what-is-cd3mwcun/): CD3MWCuN is a cast product specification most closely aligning to the wrought super duplex stainless steel product UNS S32760\. - [What are bronzes?](https://www.langleyalloys.com/knowledge-advice/what-are-bronzes/): Bronzes are copper\-based alloys typically with additions of tin, aluminium and silicon\. - [What is austenitic stainless steel?](https://www.langleyalloys.com/knowledge-advice/what-is-austenitic-stainless-steel/): There are a number of different austenitic stainless steels, the most common being the 300 series \(304/316\) produced in large volumes\. - [What is Zeron 100?](https://www.langleyalloys.com/knowledge-advice/what-is-zeron-100/): Zeron 100 is a super duplex stainless steel developed in the 1980’s by Mather \& Platt, more widely referred to as Alloy 32760, F55, 1\.4501\. - [What is AMS5666?](https://www.langleyalloys.com/knowledge-advice/what-is-ams5666/) ## Geo Offices - [Langley Alloys \(US \- Houston\)](https://www.langleyalloys.com/office/langley-alloys-us-houston/) - [Langley Alloys Ltd \(UK\)](https://www.langleyalloys.com/office/langley-alloys-ltd-uk/) ## Categories - [Blogs](https://www.langleyalloys.com/category/blogs/) - [General](https://www.langleyalloys.com/category/general/) - [UK](https://www.langleyalloys.com/category/uk/) - [USA](https://www.langleyalloys.com/category/usa/) - [Case Studies](https://www.langleyalloys.com/category/case-studies/) ## Products Categories - [Super Duplex](https://www.langleyalloys.com/alloys/super-duplex/) - [Nickel](https://www.langleyalloys.com/alloys/nickel/) - [Stainless Steels](https://www.langleyalloys.com/alloys/stainless-steels/) - [Super Duplex Plate](https://www.langleyalloys.com/alloys/super-duplex-plate/) - [Copper](https://www.langleyalloys.com/alloys/copper-nickel/) ## Case Study Categories - [Ferralium 255](https://www.langleyalloys.com/case-studies-category/ferralium-255/) - [Filter by Alloy](https://www.langleyalloys.com/case-studies-category/filter-by-alloy/) - [Filter by Market](https://www.langleyalloys.com/case-studies-category/filter-by-market/) - [Marine \& Naval](https://www.langleyalloys.com/case-studies-category/marine-naval/) - [Pumps, Valves \& Seals](https://www.langleyalloys.com/case-studies-category/pumps-valves-seals/) ## Technical Papers Categories - [Ferralium 255](https://www.langleyalloys.com/technical-papers-category/ferralium-255/) - [General Corrosion](https://www.langleyalloys.com/technical-papers-category/general-corrosion/) - [Hiduron](https://www.langleyalloys.com/technical-papers-category/hiduron/) - [Marine](https://www.langleyalloys.com/technical-papers-category/marine/) - [Oil \& Gas](https://www.langleyalloys.com/technical-papers-category/oil-gas/) ## Knowledge Hub Categories - [Super Duplex](https://www.langleyalloys.com/knowledge-advice-category/super-duplex-stainless-steels/) - [Nickel Alloys](https://www.langleyalloys.com/knowledge-advice-category/nickel-alloys/) - [Stainless Steels](https://www.langleyalloys.com/knowledge-advice-category/stainless-steels/) - [Corrosion](https://www.langleyalloys.com/knowledge-advice-category/corrosion/) - [Copper Nickel Alloys](https://www.langleyalloys.com/knowledge-advice-category/copper-nickel-alloys/)