1.Type: Products are classified according to produce’s supplying state and application, please see following table：

Type	Supplying state		Recommended application
1	Cold processing Hot processing Heat treatment Stretching	Chemical cleaning Electro polishing Straightening	Mandrel wire
2			Grid electrode
3			Leading wire
4			Wire cutting
5			Spraying coating

2.Appearance: Produce is free from defects like crack, split, burrs, breakage, discolor, wire’s surface of supplying state with C,E is silver white, there should not be pollution and obvious oxidation.

3.Chemical composition: Type1, Type2, Type3 and Type4 molybdenum wires’ chemical composition should conform to following stipulation.

Chemical composition(%)
Mo	O	C
≥99.95	≤0.007	≤0.030

4.Type5 molybdenum wire’s chemical composition should conform to following stipulation.

Mo(≥)	Impurity content(≥%)
99.95	Fe	Al	Ni	Si	Ca	Mg	P
	0.006	0.002	0.003	0.00	0.00	0.002	0.002

5. Specification

According to different diameters, spray molybdenum wires have five types: Ø3.175mm、Ø2.3mm、 Ø2.0mm、 Ø1.6mm、 Ø1.4mm.

Diameter tolerance of molybdenum wires types besides Type 5 of spray molybdenum wire conform to stipulation of GB/T 4182-2003.

6.The shortest length: Conform to stipulation of GB/T 4182-2003.

7. Spool and double winding: Conform to stipulation of GB4182-2003.

8.Packing

（1）Ø1.50mm～Ø1.55mm and Ø1.30mm～Ø1.34mm: Double winded inner diameter is 600mm, wrapped with water proof paper, packed into wooden box.

（2）Double winded inner diameter of Ø0.80mm is 380mm, wrapped with water proof paper, packed into wooden box.

（3）Molybdenum wires of Ø 350µm and 350µm are winded onto wooden spool, ABS plastic spool or metal spool, sealing with glazed paper and packed into paper box or plastic box. Molybdenum wire with diameter more than 350µm, after coiling, wrapped with water proof paper or plastic cloth.

9. Standard: Q/JDC 038-2012.

10. Client’s special requirements are available.