Wanzhi Group is a galvanized steel supplier and manufacturer, our factory produces galvanized steel and electro-galvanized coil, popular models are dx51d z120, z140, z150, z180, z275, and SGCC/SECC, S350GD, etc. We offer galvanized steel materials by international standards such as EN 10346, JIS G3302, ASTM A653, etc. for the industrial, construction, transportation, and energy sectors.

What is dx51d z120?
dx51d is a cold rolled galvanized steel grade (indicating hot-dip galvanized steel on a cold rolled steel substrate that can be used for cold forming processes), z120 means 120 grams of zinc coating per square meter of steel, dx51d z120 is an economical galvanized steel for projects with limited budgets and low risk of corrosion (e.g., indoor installations, temporary buildings).


Chemical Composition (base steel)
Elements | Range of content |
---|---|
Carbon (C) | ≤0.12 |
Manganese (Mn) | ≤0.60 |
Phosphorus (P) | ≤0.10 |
Sulphur (S) | ≤0.045 |
Silicon (Si) | ≤0.50 |
Aluminium (Al) | ≥0.015 |
Others Total | ≤0.70 |
Mechanical Properties (EN 10346)
Performance indicators | Parameters |
---|---|
Yield strength (Rp0.2) | ≥140 MPa |
Tensile strength (Rm) | 270-350 MPa |
Elongation (A80) | ≥22% |
Hardness (HV) | 70-130 HV |
Bending properties | Cold bending at 180° without cracking |
Coating adhesion | No flaking (after bending/impact) |
Fields of Application
Industries | Typical applications |
---|---|
Architecture | Lightweight roofs, walls, partitions |
Household appliances | Washer housings, microwave oven panels |
General industry | Cable bridges, ventilation ducts, shelving |
Agriculture | Greenhouse frames, simple grain silos |
DX51D+Z120 vs. DX51D+Z275
Characteristics | DX51D+Z120 | DX51D+Z275 |
---|---|---|
Coating weight | 120 g/m² on both sides (medium corrosion protection) | 275 g/m² on both sides (high corrosion protection) |
Salt spray life | Approx. 500-800 hours without red rust | Approx. 1,000-1,500 hours without red rust |
Costs | Lower (reduced zinc consumption) | Higher |
Application Environment | Dry or inland areas | Highly corrosive environments such as coastal and industrial areas |
dx51d z120 Galvanized Steel Coil Sheet for Sale
Wanzhi Group sells hot-dip galvanized steel for dry/inland/coastal/industrial/high-humidity environments. It also offers customized solutions for different applications in construction, appliance, industry, agriculture, transportation, etc., and can be installed with specified dimensions, thicknesses, zinc coatings, grades of materials, and surface treatments for production and processing.

G30 Galvanized Steel

G60 Galvanized Steel

SGCC Galvanized Steel Coil

Q235 Galvanized Steel

Galvanized Steel G90

z275 Galvanized Steel for Sale
Specifications
Category | Specifications |
---|---|
Name | Hot dip galvanized steel |
Base plate | SGCC SGCH SGHC SPCC CGCC, DX51D DX52D DX53D DX54D DX55D DX56D DX57D, S220GD S250GD S280GD S320GD S350GD S400GD S500GD S550GD, DC01 DC02 DC03 DC04 St02z, Q195 Q235 Q215 |
Zinc coating | 120 g/m² |
Thickness | 0.15mm-6mm, Customized |
Width | 600mm – 1250mm, Customized |
Regular Width | 914mm, 1000mm, 1219mm, 1220mm, 1250mm |
Painting structure | No coating, single-sided coating, double-sided coating |
Spangle | Big, regular, mini, and zero spangles |
Surface Treatment | anti-fingerprint/skin pass/oiled/dry/chromated/Embossed/Lamination |
Delivery time | 5-45 days |
Certificate | ISO, CE |
Unit weight | 8-10t (Specified weight) |
Packing | Standard export packing (plastic film + moisture-proof paper + galvanized iron) |
Price
dx51d z120 is a cost-effective hot-dip galvanized steel, the price is in the range of 600-800 USD per ton, the price difference for the same material grade and zinc layer thickness is mainly due to the size, depth of processing, and the quantity of order. Leave us a message with the size and quantity you need to get the most competitive price!
Advantages
- Economical, suitable for dry or mildly corrosive environments
- Smooth surface, easy to paint, low cost
- Easy to form, suitable for standardized processing
- Resistant to moisture, cost-effective
Finished Products
- Galvanized Steel Coil
- Color Coated Galvanized Coil (PPGI)
- Galvanized Steel Pipe
- Galvanized Steel Wire
- Galvanized Corrugated Sheet
dx51d z120 Supplier and Manufacturer
Wanzhi Group has a hot-dip galvanizing factory located in Boxing County, Binzhou City, Shandong Province, China, with 2 hot-dip galvanizing production lines, which are capable of producing hot-dip galvanized steel coils in all sizes and grades, including dx51d z120, and providing further processing such as slitting, cutting, stamping, punching, forming and other surface treatments such as phosphate, passivation, lamination, fingerprint resistance and other surface treatments.
Stock
Wanzhi Factory has raw materials (hot rolled steel, cold rolled steel), and regular types of galvanized steel in stock, the fastest delivery time is 5 days and the latest delivery time is 45 days, welcome to visit our factory or request a free sample!

Packaging
Our galvanized steel coils and galvanized steel sheets are packaged in standard export packaging, including plastic film, moisture-proof paper, galvanized iron, strapping tape, and so on. Default packaging is with the Wanzhi Group logo, you can request no logo or customized logo.

Service
We provide one-stop service, from raw material procurement, galvanized steel production, and further processing (painting, slitting, cutting, forming, etc.), to quality control and shipping, our professional team is responsible for it, and we will keep close communication with you throughout the whole process. Of course, we also accept SGS, BV, and other third-party organizations to inspect the goods in our factory before shipment.


Quality Inspection
Galvanized steel is subjected to a series of quality inspections such as galvanized thickness tests, appearance inspections, adhesion tests, corrosion resistance tests, dimensional inspections, weight inspections, etc. to ensure that the products have excellent corrosion resistance and good mechanical properties in actual applications. In addition to the production line, Wanzhi Group’s galvanizing plant also has equipment for measuring the thickness of the galvanized layer, testing the surface quality, testing the corrosion properties, measuring the dimensions, testing the hardness of the galvanized layer, analyzing the chemical composition, and additional testing equipment.


From DX51D Z80, DX51D Z120, and DX51D Z275, Wanzhi offers galvanized steel solutions for different zinc coating and applications. Contact us for the best price!