Hot-dip ZINC-MAGNESIUM coated flat steel (Corrender – Magnelis)
Coating identification (ZM) – EN10346 and (ZM) – VDA239-100
The main advantage of zinc-magnesium coated steels lies in their excellent corrosion resistance, even in harsh environments or in the presence of cut edges and damaged areas. Magnesium, in particular, promotes the formation of a compact and stable protective barrier, which slows down the progression of corrosion and increases its durability over time, reducing the rate of coating consumption.
| Standard EN 10346 | |||||
|---|---|---|---|---|---|
| Zinc-Magnesium (+ZM)
Continuosly hot-dip coated steel flat products for cold forming |
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| Steels for profiling and drawing | Structural steels | Micro-alloyed LAD |
Micro-alloyed intertitial-free YD |
Micro-alloyed bake-hardening BD |
|
| DX51D+ZM | S220GD+ZM | HX260LAD+ZM | HX160YD+ZM | HX180BD+ZM | |
| Dx52D+ZM | S250GD+ZM | HX300LAD+ZM | HX180YD+ZM | HX220BD+ZM | |
| DX53D+ZM | S280GD+ZM | HX340LAD+ZM | HX220YD+ZM | HX300BD+ZM | |
| Dx54D+ZM | S320GD+ZM | HX380LAD+ZM | HX260YD+ZM | HX340BD+ZM | |
| DX56D+ZM | S350GD+ZM | HX420LAD+ZM | HX300YD+ZM | ||
| Dx57D+ZM | S390GD+ZM | HX460LAD+ZM | |||
| S420GD+ZM | HX500LAD+ZM | ||||
| S450GD+ZM | |||||
| S550GD+ZM | |||||
| dual-fase X |
TRIP steels
T |
Complex phase C |
Ferrite-bainite multiphase F |
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| HCT450X+ZM | HDT580X+ZM | HCT690T+ZM | HCT600C+ZM | HDT750C+ZM | HDT450F+ZM |
| HCT490X+ZM | HCT780T+ZM | HCT780C+ZM | HDT760C+ZM | HDT580F+ZM | |
| HCT590X+ZM | HCT980C+ZM | HDT950C+ZM | |||
| HCT780X-+ZM | |||||
| HCT980X+ZM | |||||
| HCT980XG+ZM | |||||
| Possible surface coatings in +ZM | ||
|---|---|---|
| Coating class | Typical coating thickness per side in µm | Typical coating range per side in µm |
| ZM070 | 5,5 | 4 ÷ 8 |
| ZM090 | 7 | 5 ÷ 10 |
| ZM120 | 9 | 6 ÷ 14 |
| ZM150 | 11,5 | 8 ÷ 17 |
| ZM200 | 15 | 10 ÷ 20 |
| ZM250 | 19 | 13 ÷ 25 |
| ZM310 | 24 | 18 ÷ 31 |
| ZM430 | 35 | 26 ÷ 46 |
| Surface Quality | |
|---|---|
| A | as coated surface |
| B | improved surface |
| C | best quality surface |
| Surface Treatment | |
|---|---|
| C | chemically passivated |
| O | oiled |
| CO | passivated and oiled |
| P | phosphated |
| PO | phosphated and oiled |
| S | sealed – antifinger |
| Cold forming steels, automotive applications VDA 239-100 standard
Sheet steel for cold forming |
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|---|---|---|---|---|---|---|---|
| Mild Steel | High Strength Steel LA or HSLA |
High Strength IF Steel IF |
Bake Hardenable Steel BH |
Dual Phase Steel DP |
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| Cold | Hot | Cold | Hot | Cold | Cold | Cold | Hot |
| CR0+ZM | HR0+ZM | CR210LA+ZM | HR210LA+ZM | CR180IF+ZM | CR180BH+ZM | CR290Y490T-DP+ZM | HR330Y580T-DP+ZM |
| CR1+ZM | HR2+ZM | CR240LA+ZM | HR240LA+ZM | CR210IF+ZM | CR210BH+ZM | CR330Y590T-DP+ZM | |
| CR2+ZM | CR270LA+ZM | HR270LA+ZM | CR240IF+ZM | CR240BH+ZM | CR440Y780T-DP+ZM | ||
| CR3+ZM | CR300LA+ZM | HR300LA+ZM | CR270IF+ZM | CR270BH+ZM | CR500Y780T-DP+ZM | ||
| CR4+ZM | CR340LA+ZM | HR340LA+ZM | CR590Y980T-DP+ZM | ||||
| CR5+ZM | CR380LA+ZM | HR380LA+ZM | CR700Y980T-DP+ZM | ||||
| CR420LA+ZM | HR420LA+ZM | CR780Y1180T-DP+ZM | |||||
| CR460LA+ZM | HR460LA+ZM | ||||||
| CR500LA+ZM | HR500LA+ZM | ||||||
| CR550LA+ZM | HR550LA+ZM | ||||||
| HR600LA+ZM | |||||||
| HR650LA+ZM | |||||||
| HR700LA+ZM | |||||||
| Dual Phase Steel with imrpoved formability DH |
Multi-Phase Steels with High Global Formability FH |
Complex Phase Steel CP |
Complex-Phase Steels with Improved Formability CH |
Martensitic Steel MS |
Ferritic Bainitic Steel FB |
||
| Cold | Cold | Cold | Hot | Cold | Cold | Hot | Hot |
| CR330Y590T-DH+ZM | CR600Y980T-FH+ZM | CR570Y780T-CP+ZM | HR660Y760T-CP+ZM | CR780Y980T-CH+ZM | CR860Y1100T-MS+ZM | HR900Y1180T-MS+ZM | HR300Y450T-FB+ZM |
| CR440Y780T-DH+ZM | CR850Y1180T-FH+ZM | CR780Y980T-CP+ZM | HR750Y950T-CP+ZM | CR900Y1180T-CH+ZM | CR950Y1200T-MS+ZM | HR440Y580T-FB+ZM | |
| CR700Y980T-DH+ZM | CR900Y1180T-CP+ZM | CR1000Y1370T-CH+ZM | CR1030Y1300T-MS+ZM | ||||
| CR780Y1180T-DH+ZM | CR1220Y1500T-MS+ZM | ||||||
| CR1350Y1700T-MS+ZM | |||||||
| Possible surface coatings in +ZM
Coating Type |
|||
|---|---|---|---|
| Coating class | Coating mass per side in g/m² | Designation according to EN 10346 | Thickness per side (information) in µm |
| 30 | 30 ÷ 55 | ZM70 | 4,4 ÷ 8,6 |
| 40 | 40 ÷ 65 | ZM90 | 5,9 ÷ 10,2 |
| 50 | 50 ÷ 80 | ZM120 | 7,4 ÷ 12,5 |
| 60 | 60 ÷ 90 | ZM140 | 8,9 ÷ 15,3 |
| Surface Quality | |
|---|---|
| U | unexposed |
| E | exposed |
| Surface Treatment | |
|---|---|
| P | prephosphated |
| O | oiled |
Thanks to their enhanced performance and reduced environmental impact (lower material consumption, longer service life, and reduced maintenance requirements), zinc-magnesium coated steels are becoming an increasingly popular choice in industries such as automotive, construction, home appliances and industrial applications.