Trademark B-A

Chemical composition %,max

C 0.003 Si 0.01 Mn 0.20 P 0.012 S 0.006 Al 0.15-0.50 Cr0.02 Ni 0.01 Cu 0.02

Trademark B-AA

Chemical composition %,max

C 0.002 Si 0.006 Mn 0.12 P 0.007 S 0.001 Al 0.15-0.50 Cr0.02 Ni 0.01 Cu 0.005

Trademark B-B

Chemical composition %,max

C 0.003 Si 0.01 Mn 0.13 P 0.009 S 0.006 Al 0.03 Cr 0.01Ni 0.01 Cu 0.02

Trademark B-C

Chemical composition %,max

C 0.002 Si 0.01 Mn 0.03 P 0.006 S 0.005 Al 0.01 Cr 0.01Ni 0.01 Cu 0.01

Type mm :
Medium plate and steel billet 8-250 ,plate coil 12-25 ,straight round steel dia6.5-dia300,round steel coil,cold drawn plate coil 0.5-2.5  tube,etc.
We can produce the special type which you ask

application of trademark B-A:

a.make it in electric core.heel piece, gag bit inelectric appliance device,telecommunication

b.Electric core of electric iron

c.Electromagnetic part of instruments andmeters

d.Iron core and shell of direct-currentdynamo

e.Electric part or magnetic part forcar,tractor,lathe

f.Magnetic shielding apparatus

Charateristic

1 .goodelectromagnet character.Coercive force(Hc)low,high magneticpermeability. high saturation induction density  Bs .stable magnet and no magnetic aging

2  high pure,electric pure iron,is full killedsteel,refine,so the density is high,average,good,little gas, this is a reliablecondition that customer simplify and cut down the anneal process of the parts.
3  cold drawn,hot roll,forge.Cold process,these is no problem such aslathe,drill,punch,bend,drawn.Hotprocess,such as forge,roll,there is little redsear sensibility,it is a goodcondition for doing in a large degree scope.

International standard

magnetic aging：keep 100 degreefor 100 hours or Condition is 790 degree after 2 hours, after cooling with thefurnace.

Appliance of trademark from B-B to B-C :

The raw material of all kinds precise alloy（superalloy）,electric alloy,soft magnet,amorphous alloyand permanent magnet such as NdFeB  etc.