special steel bars and tubes manufacturing process · special steel bars and tubes manufacturing...

Special Steel Bars and Tubes manufacturing process

Special Alloys manufacturing process

Melting/Refining/Casting150-t electric arc furnace melting

60-t electric arc furnace melting

Rolled bars

Wire rods

Tubes

Forged barsFlat square bars

Special melting

Turning

A

A

Continuous casting Bloom InspectionHeat treatment

Inspection

Inspection

Inspection

Bloom

Ingot casting Ingot

Peeling

Cold pilgering

Wire drawing

Ingot15t ESR 5t VAR 1t VIM

D

CoilingJ

Large-diameter bar rollingL

Billet rollingCoggingGF

Billet inspection Billet

H

ForgingK

Bar and wire rod rollingI

Assel tube rollingM

Hot extrusionN

Continuous castingD

SOLadle furnace refiningB

RH vacuum degassingC

Ladle furnace refiningB

RH vacuum degassingC E

Hot working Heat treatment Cold working Inspection Products

Heat treatment

Planing

Heat treatment

Heat treatmentP

Special melting further improves the cleanliness of steel and the homogeneity of steel quality. High-cleanliness materials created through atmosphere melting are used as base materials for 15 t ESR and 5 t VAR. ※The manufacturing process once ingots are created

is the same as with special steel bars and tubes.