General Information
General Information
About stainless steel
Microstructure
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Austenitic Non-magnetic steel, has the best corrosion resistance, with good toughness and good weldability, cannot be hardened by heat treatment (e.g.: 1.4301/AISI 304; 1.4541/AISI 321).
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Ferritic Magnetic steel, has good resistance in moderate aggressive environment, cannot be hardened by heat treatment and has poor weldability (e.g.: 1.4016/AISI 430 ; 1.4512/AISI 409Li).
Alloying elements
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Chromium and Nickel Are the main alloying elements in stainless steel. "Steel with chromium" is a traditional term for ferritic grades, and "Steel with Chromium and Nickel" can be used for austenitic grades.
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Molybdenum Stainless steel with over 2% Mo, may be called "Steel with Chromium Nickel and Molybdenum".
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Low carbon Intergranular corrosion is avoided through low carbon content (C < 0.03%). These steels are called "Low Carbon steels".
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Stabilization Addition of Titanium prevents the precipitation of chromium carbides especially for heat treatment and/or welding processes.
Usage
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Corrosion resisting Steel with a good resistance to uniform or local corrosive attack from the environment (e.g.: 1.4404/AISI 316L; 1.4571/AISI 316Ti);
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Heat resisting Steel with a good resistance to oxidation, to the effects of hot gases and combustion products at temperatures higher than 800 ̊ C (e.g.: 1.4828/AISI 309; 1.4845/AISI 310S).
General Information
Manufacturing & Applications
General Information
Our Capabilities
ZM
3 cold rolling lines type Sendzimir Mill (20-high cluster mill configuration)
BA / DG / APC / APH
- 2 bright annealing lines – heat treatment in controlled atmosphere (BA)
- 2 degreasing lines (DG)
- 1 annealing line for cold rolled coils (APC)
- 1 annealing line for hot rolled coils (APH)
TL / SKP
- 2 tension leveling lines (TL)
- 1 skin pass line (SKP)
SL
- 7 slitting lines (SL)
DB / MC / SP
- 1 edge trimming line (DB)
- 2 multi-coil lines (MC)
- 3 spooling lines (SP)
PK
- 3 packing lines (PK)
General Information
Process Flow
ZM-BA-TL-SL-PK
Rolling – Annealing in controlled atmosphere – Tension leveling – Slitting – Packing
ZM-DG-TL-SL-PK
Rolling – Degreasing – Tension leveling – Slitting – Packing
ZM-APC-SKP-SL-PK
Rolling – Annealing – Skin passing – Slitting – Packing
ZM-BA-SKP-SL-PK
Rolling – Annealing in controlled atmosphere – Skin passing – Slitting – Packing