This document provides information on the LFB CW510L alloy, including its chemical composition, mechanical properties, heat treatments, dimensions and tolerances, finishing, and packaging. The alloy has a low lead content below 0.2% allowing its use in the USA market. It has good machinability for chip removal, making it a standard alloy among low lead materials. It is included in the 4MS "Positive list" for parts in contact with drinking water due to its composition.
This document provides information on the LFB CW510L alloy, including its chemical composition, mechanical properties, heat treatments, dimensions and tolerances, finishing, and packaging. The alloy has a low lead content below 0.2% allowing its use in the USA market. It has good machinability for chip removal, making it a standard alloy among low lead materials. It is included in the 4MS "Positive list" for parts in contact with drinking water due to its composition.
This document provides information on the LFB CW510L alloy, including its chemical composition, mechanical properties, heat treatments, dimensions and tolerances, finishing, and packaging. The alloy has a low lead content below 0.2% allowing its use in the USA market. It has good machinability for chip removal, making it a standard alloy among low lead materials. It is included in the 4MS "Positive list" for parts in contact with drinking water due to its composition.
This document provides information on the LFB CW510L alloy, including its chemical composition, mechanical properties, heat treatments, dimensions and tolerances, finishing, and packaging. The alloy has a low lead content below 0.2% allowing its use in the USA market. It has good machinability for chip removal, making it a standard alloy among low lead materials. It is included in the 4MS "Positive list" for parts in contact with drinking water due to its composition.
Alloy with low Its lead content below 0.2% allows the use in the USA market lead content for which it is NSF372 certified. Its good machinability for
and optimised chip removal makes LFB the standard alloy among low lead content materials. It is included in the 4MS “Positive list” it is machinability. used for parts that come in contact with drinking water.
NAME OF ALLOY UNI EN: CW510L - CuZn42 ASTM: C28500
CHEMICAL COMPOSITION UNI EN 12164 ED.06-2011
Cu Pb Sn Fe Ni* Al Zn Other elements min. 57.0 ≤0.2 % ≤0.3 % ≤0.3 % ≤0.2 % ≤0.05 % difference ≤0.2 % max. 59.0 % *Limitation according 4MS. Elements not listed must be ≤0.02 %. Group of restriction of the surface in contact with drinking water: B,C.
HEAT TREATMENTS STRESS RELIEVING ANNEALING Allows for redistribution of tensions induced by Re-crystallizes the alloy, reducing its hardness and mechanical processing, reducing the risk of stress increasing its ductility. corrosion cracking. The temperature of the treatment varies from 450°C The treatment consists of heating the items to to 550°C for an amount of time relative to the required 200°C - 250°C for 2 hours and cooling within the results. The high temperature can induce changes in furnace. the surface appearance and in the tolerance of the finished part.
MECHANICAL PROPERTIES UNI EN 12164 ED.06-2011
Condition Diameter in mm Hardness HB* Rm Rp0.2 N/mm2 Lengthening % of material from to (included) min. max. min. min. max. min. M All As a product R360 6 (5) 80 (60) - - 360 - 320 20 H090 6 (5) 80 (60) 90 125 - - - - R430 2 (2) 40 (35) - - 430 220 - 10 H110 2 (2) 40 (35) 110 160 - - - - R500 2 (2) 14 (10) - - 500 350 - 5 H135 2 (2) 14 (10) 135 - - - - - *the hardness value is determined in the mid-range The standard condition produced by Almag is R430 for Rm or H110 for hardness. Any other conditions must be requested when ordering - subject to feasibility request.
www.almag.it LFB CW510L Alloy with low lead content and optimised machinability.
TECHNOLOGICAL PROPERTIES low excellent
Structure α+β Machinability
Density 8.4 kg/cm 2 Weldability Electrical conductivity 27% IACS Hot forming Coeff. of thermal expansion 21.2 10-6/K Cold forming Thermal conductivity* 112 W/(m K) Corrosion resistance** Not resistant Specific heat 375 J/(kg K) *at room temperature Elasticity module 85 kN/mm2 **use care to ascertain compatibility with chemical substances Melting point 870-890 °C
DIMENSIONS, TOLERANCES, AND STRAIGHTNESS UNI EN 12164 ED.06-2011
ROUND section bar HEXAGONAL and SQUARE Nominal diameter (mm) TOLERANCES Nominal key (mm) Tolerance from to included Class A Class B Class C from to included mm 6 10 0 - 0.06 0 - 0.036 0 - 0.025 6 10 0 - 0.09 10 18 0 - 0.07 0 - 0.043 10 18 0 - 0.11 18 30 0 - 0.08 0 - 0.052 18 30 0 - 0.13 30 50 0 - 0.16 30 50 0 - 0.16 50 80 0 - 0.19 50 60 0 - 0.19 The standard tolerance for the round bar is Class A. Any different tolerances must be agreed upon when ordering Semi-finished products can be supplied from Ø63 to Ø80 mm with Class A tolerances
Diameter Length of bar Tolerance Diameter Deviation from straightness in mm
(mm) (mm) (mm) or Key (mm) Every 400 mm Every m of length L ≥ 1 2 30 3000 o 4000 +/- 50 Round section bar 30 50 3000 o 4000 +/- 100 10 50 0.4 1.0 x L 50 80 3000 +/- 100 Hexagonal and square section bar 10 50 0.6 1.5 x L
BAR FINISHING AND PACKAGING
Diameter or Key Chamfer Tip 30° (mm) Length L mm Length L mm 5 10 0.2 1.5 2 7 10 20 0.2 2 3 10 L 20 30 0.2 3 4 12 Unless otherwise specified by the buyer, the shape of the ends of products larger than 30 mm is up to the supplier
finishing with chamfer and tip up to and including Ø40 mm
Ends of round bars finishing with chamfer and cut greater than Ø40 mm Ends of hexagonal bars finishing with chamfer and cut Bar surface pickled Packaging 1000 kg bundle – 3/5 metal straps different bundle packagings and quantities are possible upon request Identification adhesive label on bundle strap Stress relieving the polygonal bar was subjected to stress relieving treatment
www.almag.it Rev. 02-2016
ALMAG S.p.A. AZIENDA LAVORAZIONI METALLURGICHE E AFFINI GNUTTI
Single-member S.p.A. A subsidiary of HUG S.p.A.
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