Core wire technical requirements standard

2016-09-02 22:44

1. The selection of the cored wire should meet the requirements of GB/T716, GB/T13237 and YB/T 5059. The steel belt should be degreasing and rust removed before coating.

2. The core powder used in the cored wire should conform to GB/T 2272, GB/T 3070, GB/T 3282, GB/T3795, GB/T 4138, GB/T 4153, GB/T 5682, GB/T 15710, The provisions of GB/T 5051.

3. The physical properties of a single core-wrapped money should meet the requirements of Table 1. The physical properties of the composite cored wire are to be agreed upon by the supplier.

serial number	Name and corresponding core powder standard number	diameter		Steel strip thickness mm	Core powder mass g/m not less than	Number of joints per kilometer no greater than
serial number	Name and corresponding core powder standard number	Nominal size	deviation	Steel strip thickness mm	Core powder mass g/m not less than	Number of joints per kilometer no greater than
1	Ferrosilicon cored wire GB/T2272	13	+0.80	0.3-0.4	355	2
2	Asphalt coke cored wire GB/T3070				135
3	Titanium iron cored wire GB/T3282				510
4	Ferromanganese cored wire GB/T3795				550
5	Rare earth magnesium ferrosilicon alloy cored wire GB/T4138				350
6	Mixed rare earth metal cored wire GB/T4153				RE125SiCa160
7	boron iron cored wire GB/T5682				520
8	Silicon barium alloy cored wire, GB/T15710				280
9	Silicon calcium alloy cored wire GB/T5051	10	+0.60		125
		12	+0.60		200
		13	+0.80		220
		16	+0.80		320

When there are special requirements for the characteristics other than Table 1, it shall be negotiated by both parties.

4. Use other powders as the cored wire of the core powder, and its characteristics are negotiated by both the supplier and the buyer.

5. The core powder of the cored wire should be kept dry, the moisture content is not more than 0.5%, and other impurities are not allowed. The composite core powder should be mixed evenly before coating.

6. The cored wire should be covered firmly, with no seams, no leakage of powder, no slits, no folds, no empty wraps, no oil stains and no rust on the surface.