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Type of material

The metallic cloths can be obtained in all metals and alloys which can be drawn.

We include a list of those, most commonly used, their chemical composition and some of their physical properties.

Weight of various materials compared to plain steel

Specific weight 7.85


Material Alluminium Bronze Copper Brass Alpaca Monel Silver Tin Inconel Nickel Nylon Polyester
Multiplier coefficient 0.328 1.13 1.13 1.12 1.104 1.141 1.35 0.935 1.084 1.141 0.0145 0.175

Acciaio Inox 17% Cr - AISI 430

Composition chimique C 0.12 max
  Mn 1.00 max
  Si 1.00 max
  P 1.00 max
  S 1.00 max
  Cr 14 ÷ 18
     
Specific weight   7.75 kg/dm³ a 20°C
Specific colour   0.152 Kcal/kg/°C a 100°C
Magnetic properties   Ferro magnetico
Specific resistivity   60 µΩcm a 20°C

Acciaio al carbonio

Composition chimique C 0.08 ÷ 0.10
  Mn 0.40 ÷ 0.48
  P 0.01 ÷ 0.02
  S 0.03 ÷ 0.04
     
Specific weight   7.7 kg/dm³ a 20°C
Specific colour   0.118 Kcal/kg/°C a 100°C
Magnetic properties   Magnetico

Acciaio Inox 18/8 - AISI 304

Composition chimique C 0.08 max
  Mn 2.00 max
  Si 1.00 max
  P 0.04 max
  S 0.03 max
  Cr 18 ÷ 20
  Ni 8 ÷ 11
     
Specific weight   7.93 kg/dm³ a 20°C
Specific colour   0.120 Kcal/kg/°C a 100°C
Magnetic properties   Non magnetico
Specific resistivity   72 µΩcm a 20°C

Acciaio Inox 13% Cr - AISI 410 S

Composition chimique C 0.08 max
  Mn 1.00 max
  Si 1.00 max
  P 0.04 max
  S 0.03 max
  Cr 11.5 ÷ 13.5
  Ni 0.06
     
Specific weight   7.75 kg/dm³ a 20°C
Specific colour   0.152 Kcal/kg/°C a 100°C
Magnetic properties   Ferro magnetico
Specific resistivity   60 µΩcm a 20°C

Acciaio Inox 18/8/2 - AISI 316

Composition chimique C 0.08 max
  Mn 2.00 max
  Si 1.00 max
  P 0.04 max
  S 0.03 max
  Cr 16 ÷ 18
  Ni 10 ÷ 14
  Mo 2 ÷ 3
     
Specific weight   7.98 kg/dm³ a 20°C
Specific colour   0.118 Kcal/kg/°C a 100°C
Magnetic properties   Non magnetico
Specific resistivity   74 µΩcm a 20°C

Acciaio Inox 18/8 - AISI 304 L

Composition chimique C 0.03 max
  Mn 2.00 max
  Si 1.00 max
  P 0.045 max
  S 0.03 max
  Cr 18 ÷ 20
  Ni 8 ÷ 12
     
Specific weight   7.93 kg/dm³ a 20°C
Specific colour   0.120 Kcal/kg/°C a 100°C
Magnetic properties   Non magnetico
Specific resistivity   72 µΩcm a 20°C

Acciaio Inox 18/8/2 - AISI 316 L

Composition chimique C 0.03 max
  Mn 2.00 max
  Si 1.00 max
  P 0.04 max
  S 0.03 max
  Cr 16 ÷ 18
  Ni 10 ÷ 14
  Mo 2 ÷ 3
     
Specific weight   7.98 kg/dm³ a 20°C
Specific colour   0.118 Kcal/kg/°C a 100°C
Magnetic properties   Non magnetico
Specific resistivity   74 µΩcm a 20°C

Acciaio Inox 24/20 - AISI 430

Composition chimique C 0.25 max
  Mn 2.00 max
  Si 1.50 max
  P 0.04 max
  S 0.03 max
  Cr 24 ÷ 26
  Ni 19 ÷ 22
     
Specific weight   7.98 kg/dm³ a 20°C
Specific colour   0.118 Kcal/kg/°C a 100°C
Magnetic properties   Non magnetico
Specific resistivity   90 µΩcm a 20°C

Acciaio Inox 18/8/11 - AISI 321

Composition chimique C 0.08 max
  Mn 2.00 max
  Si 1.00 max
  P 0.04 max
  S 0.03 max
  Cr 17 ÷ 19
  Ni 8 ÷ 11
  Ti 5XC min
     
Specific weight   8.02 kg/dm³ a 20°C
Specific colour   0.118 Kcal/kg/°C a 100°C
Magnetic properties   Non magnetico
Specific resistivity   72 µΩcm a 20°C

Incotel 625

Composition chimique Ni differenza a 100
  C 0.10 max
  Mn 0.50 max
  Fe 5.00 max
  S 0.0015 max
  Si 0.50 max
  Cu 0.10 max
  Cr 20 ÷ 23
  Cr+Ta 3.15 ÷ 4.15
  Mo 8 ÷ 10
  Al 0.40
  Ti 0.40
     
Specific weight   8.44 kg/dm³ a 20°C
Specific colour   0.098 Kcal/kg/°C a 100°C
Specific resistivity   99 µΩcm a 20°C

Monel 400 - ASTM B.164

Composition chimique Ni 63 ÷ 70
  Fe 2.5 max
  Mn 1.25 max
  C 0.30 max
  Si 0.50 max
  S 0.024 max
  Cu differenza a 100
     
Specific weight   8.84 kg/dm³ a 20°C
Specific colour   0.127 Kcal/kg/°C a 100°C
Magnetic properties   Leggermente magnetico
Specific resistivity   48,2 µΩcm a 20°C
Punto di Curie   60°C

Rame elettrolitico

Composition chimique Cu+Ag 99.9 max
  Pb 0.005 max
  As+Bi+Ni 0.10 max
     
Specific weight   8.90 kg/dm³ a 20°C
Specific colour   0.092 Kcal/kg/°C a 100°C
Specific resistivity   1.71 µΩcm a 20°C

Bronzo fosforato B.7 UNI 2527

Composition chimique Cu differenza a 100
  Sn 6 ÷ 8
  P 0.03 max
  Pb 0.05 max
  Fe 0.10 max
  Zn 0.10 max
  Sb 0.01 max
     
Specific weight   8.80 kg/dm³ a 20°C
Specific colour   0.09 Kcal/kg/°C a 100°C
Specific resistivity   13 µΩcm a 20°C

Ottone P-Cu-Zn 33 UNI 4894

Composition chimique Cu 66 ÷ 68
  Pb 0.20 max
  Fe 0.15 max
  Al 0.05 max
  Sn 0.20 max
  Si 0.15 max
  Mn 0.10 max
  Ni 0.30 max
  Zn differenza a 100
     
Specific weight   8.5 kg/dm³ a 20°C
Specific colour   0.09 Kcal/kg/°C a 100°C
Specific resistivity   6.63 µΩcm a 20°C

Acciaio Inox 17% Cr - AISI 430

Composition chimique Al 99.5 max
  Fe 0.20 max
  Si 0.10 max
  Zn 0.04 max
  Cu 0.005 max
  Ti 0.006 max
     
Specific weight   2.72 kg/dm³ a 20°C
Specific colour   0.226 Kcal/kg/°C a 100°C
Specific resistivity   2.82 µΩcm a 20°C

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