Iron Alloy Precision Alloy 1J79 Alloy4

Short Introduction:

HY J79/1J79/AISI/ASTM Alloy4 has a high initial permeability, to work in a weak magnetic field of various transformers, transformers, magnetic amplifiers, choke coil core and magnetic shielding.

Fob price: US $ 25 - 80 / Kilogram

Min.order quantity: 300kg

Port: Shanghai

Payment terms: L/C,T/T,30% down payment after order, balance against copy of B/L

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HY J79 Material grades and equivalents

1J79 / AISI/ASTM Alloy4

HY J79 Chemical composition

Grade

≤

HY J79

0.03

0.02

0.6-1.1

78.5-80.5

0.3-0.5

3.8-4.1

≤0.20

Rest

HY J79 Alloy Mechanical properties in the room temperature

Grade	Shape	Magnetic properties
Grade	Shape	Initial permeabilityμO （mH/m）	Maximum permeabilityμm （mH/m）	Hc (A/m)	Saturation induction density BS （T）
HY J79	Cold rolling strips	≥31	≥250	≤1.2	0.75
HY J79	Rod wire	≥25	≥3125	≤2.4	0.75

HY J79 Characteristic as below

HY J79 has a high initial permeability, to work in a weak magnetic field of various transformers, transformers, magnetic amplifiers, choke coil core and magnetic shielding.

Regular shape for all kinds of alloys
Form	Specification	Supply Form	Others
Sheet	Thickness：0.40-4.75mm，General Width：1000、1219、1500mm	Whole Coil or piece of it	Cold Annealed，Surface 2B、2E
Plate	Thickness：4.76-60mm，Width：1500、2000、2500mm，Length：3000、6000、8000、8500mm（Under 10mm plate can be coiled）	Whole Coil or piece of it	Single hot rolling，Solid solution annealed state，Surface 1D
Belt	Thickness：0.10-3.0mm，Width：50-500mm	Whole Coil or Specified size	Cold Annealed，Surface 2B、2E
Bar & Rod	Rolled barΦ5-45mm，Length≤1500mm	Polished Bar（circle、Square）	Solution annealing,descaling
Bar & Rod	Forged barΦ26-245mm，Length≤4000mm	Polished Bar（circle、Square）	Solution annealing,descaling
Weld tube	Outer diameterΦ4.76-135mm，Wall Thickness0.25-4.00mm，Length：≤35000 mm	Base on your requirement
Seamless Tube	Outer diameterΦ3-114mm，Wall Thickness0.2-4.5mm	Base on your requirement
Wire	Outer diameterΦ0.1-13mm	Base on your requirement	Ni & Ni alloy, Ti & Ti alloy
Forged piece	discs,rings,squares,blocks,slabs	Base on your requirement	Steel, Alloy
Flangs	All kinds of Flangs	Base on your requirement	Steel, Alloy
Welding Material	Coil wire Φ0.025mm-1.6mm	Base on your requirement	Certificate of Origin：America, Sweden, Britain, Germany, Austria, Italy, France.
	Straight WireΦ1.6mm-4.0mm
	Welding rodΦ1.2mm-4.0mm
Tube	Elbow, three links, four links, different diameter size	Base on your requirement	Ni & Ni alloy, Ti & Ti alloy
Explosive bonded laminate	Raw Sheet Thickness≥2mm	Base on your requirement	Ni & Ni alloy, Ti & Ti alloy