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                              Iron powder for welding electrode

Variety

for welding electrode

Grade

HYD40·290

HYD40·370

HYD40·370C

HYD100·250

Level

 

 

 

 

Chemical%

Fe 

98.00

98.00

98.00

98.00

Mn

0.40

0.40

0.40

0.40

Si

0.15

0.15

0.15

0.15

C

0.05

0.05

0.080.12

0.05

S

0.020

0.020

0.020

0.020

P

0.020

0.020

0.020

0.020

Hydrogen loss

0.30

0.30

0.30

0.50

Insolubles in HCL

-

-

-

-

Mo

-

-

-

-

Process performance

Bulk densi g/cm3

2.90±0.10

3.70±0.10

3.70±0.10

2.50±0.10

Fluidity s/50g≤

32

30

30

36

Compressibility g/cm3

-

-

-

-

Size distribution  (mesh) %

+40(>425m

<1 

<1 

<1 

-

-40+60250-425um

520

530

530

-

-60+80(180-250um)

Allowance

Allowance

Allowance

-

-80+100(150-180um)

5

-100+150(106-150um)

1025

+150(160um)

-

-

-

Allowance

-150+200(75-106um)

-

-

-

-200+250(63-75um)

1020

1020

1020

-250+320(45-63um)

-

-

-

-320(45um)

-

-

-

20


 

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