¡¼Delivery¡½¡¡¡¡¡¡ÖÐÎÄ°æ
1¡¢Supply condition£º
  Wires:
¡¡¡¡ All cold-drawn wires shall be delivered after annealing and acid picking. Alloy wires in coils shall be delivered after picking or in oxidizing colour.Alloy wires of small diameters shall be delivered in bright and smooth condition after annealing In shelteringgas.
  Strips:
¡¡¡¡Strips shall be delivered without acid picking unless the customers have special reqwirements .
  Ribbons:
¡¡¡¡Ribbons shall be delivered in bright and smooth condition after annealing in sheltering
gas.
2¡¢Packing:
  ¡¡¡¡Alloy wires of large diameters and strips shall be delivered in rolls and packed in cloth bags.Alloy wires of small diameters and ribbons shall be delivered in reels.
3¡¢Can discuss any special requirements of export products and customers.
  • Main characteristics of Fe-Cr-Al high resistance and electric heating alloys (GB/T1234-95£© --------------------------¡¾back¡¿
1Cr13AI4 oCr21A15 oCr21A16 oCr21A14 oCr21A16Nb oCr27A17Mo2
Main
chemical
Composition
 Cr 12.0-15.0 23.0-26.0 19.0-22.0 18.0-21.0 21.0-23.0 26.5-27.8
AI 4.0-6.0 4.5-6.5 5.0-7.0 3.0-4.2 5.0-7.0 6.0-7.0
Re opportune
amount		 opportune
amount		 opportune
amount		 opportune
amount		 opportune
amount		 opportune
amount
Fe Rest Rest Rest Rest Rest Rest
          Nb0.5 Mo1.8-2.2
Max.continuous service temp.of element(¡æ) 950 1250 1250 1100 1350 1400
Resistivity at 20¡æ(¦Ì¦¸¡¤m) 1.25 1.42 1.42 1.23 1.43 1.53
Density(g/cm3) 7.40 7.10 7.16 7.35 7.10 7.10
(KJ/m.h.¡æ)
Thermal conductivity		 52.7 46.1 63.2 46.9 46.1 45.2
Coefficient of lineas expansion(¦Á*10-6/¡æ) 15.4 16.0 14.7 13.5 16.0 16.0
Melting point(approx.)(¡æ) 1450 1500 1500 1500 1510 1520
Tensile strength(kg/mm2) 60-70 65-80 65-80 65-80 65-80 70-85
Elongation at ruptrue(%) >16 >12 >12 >12 >12 >10
Variation of area(%) 65-75 60-75 65-75 65-75 65-75 65-75

Repeat bending frequency(F/R)		 >5 >5 >5 >5 >5 >5

Hardness(H.B.)		 200-260 200-260 200-260 200-260 200-260 200-260

Micrographic structure		 Ferrite Ferrite Ferrite Ferrite Ferrite Ferrite

Magnetic properties		 Magnetic Magnetic Magnetic Magnetic Magnetic Magnetic

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Add: No. 26 Tongjiang Road, Changshu City¡¡P.S£º215511
TEL£º0512-52668358 52260309 FAX£º0512-52661724
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