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Basic Series
This series consists of grades pro- duced with the main emphasis on their hardness levels, the chemical composition being basically simple while the addition of other alloying elements is restrained.
Alloy Series
This series contains alloying elements in greater quantities than the basic series. Both the prescribed hardness and low-temperature toughness are guaranteed.
Easy Welding Series
This series contains restrained con- tents of carbon and alloying elements. The value of CEV is lower than the standard series and the alloy series, which is good to welding.
Typical Grade and Specifications for B-HARD | |||
Grade | Specifications | ||
Thickness, mm | Width, mm | Length, mm | |
B-HARD360A/B(Basic type) | 6-90 | 1300-4200 | 6000-25000 |
B-HARD360C/D/E(Alloy type) | 6-80 | 1300-4200 | 6000-25000 |
B-HARD360CFA/B/C/D/E(Easy welding) | 6-20 | 1300-4200 | 6000-25000 |
B-HARD400A/B(Basic type) | 6-90 | 1300-4200 | 6000-25000 |
B-HARD400C/D/E(Alloy type) | 6-80 | 1300-4200 | 6000-25000 |
B-HARD400CFA/B/G/D/E(Easy welding) | 6-20 | 1300-4200 | 6000-25000 |
B-HARD450A/B/C/D/E(Alloy type) | 6-75 | 1300-4200 | 6000-25000 |
B-HARD450CFA/B/C/D/E(Easy welding) | 6-20 | 1300-4200 | 6000-25000 |
B-HARD500A/B/C/D/E(Alloy type) | 6-75 | 1300-4200 | 6000-25000 |
Typical Chemical Composition for B-HARD | |||||||
Grade | Chemical Composition wt.% | ||||||
C≤ | Si≤ | Mn≤ | P≤ | S≤ | Cr≤ | Mo≤ | |
B-HARD360 (Basic type) | 0.2 | 0.6 | 1.6 | 0.025 | 0.015 | 0.8 | 0.3 |
B-HARD360 (Alloy type) | 0.2 | 0.6 | 1.6 | 0.025 | 0.015 | 0.8 | 0.5 |
B-HARD360CF(Easy welding) | 0.18 | 0.6 | 1.8 | 0.025 | 0.015 | 0.6 | 0.3 |
B-HARD400 (Basic type) | 0.2 | 0.6 | 1.6 | 0.025 | 0.015 | 0.8 | 0.3 |
B-HARD400(Alloy type) | 0.2 | 0.6 | 1.6 | 0.025 | 0.015 | 0.8 | 0.5 |
B-HARD400CF(Easy welding) | 0.18 | 0.6 | 1.8 | 0.025 | 0.015 | 0.6 | 0.3 |
B-HARD450(Alloy type) | 0.25 | 0.7 | 1.6 | 0.02 | 0.01 | 1 | 0.8 |
B-HARD450CF(Easy wekding) | 0.22 | 0.7 | 1.6 | 0.02 | 0.01 | 0.6 | 0.5 |
B-HARD500(Alloy type) | 0.3 | 0.7 | 1.6 | 0.02 | 0.01 | 1.5 | 1 |
Grade | Chemical Composition wt.% | ||||
Ni≤ | Ti≤ | Alt≥ | B≤ | CEVa≤ | |
B-HARD360 (Basic type) | 0.2 | 0.05 | 0.015 | 0.005 | 0.55 |
B-HARD360 (Alloy type) | 0.8 | 0.05 | 0.015 | 0.005 | 0.58 |
B-HARD360CF(Easy welding) | 0.5 | 0.05 | 0.015 | 0.005 | 0.52 |
B-HARD400 (Basic type) | 0.2 | 0.05 | 0.015 | 0.005 | 0.56 |
B-HARD400(Alloy type) | 0.8 | 0.05 | 0.015 | 0.005 | 0.6 |
B-HARD400CF(Easy welding) | 0.5 | 0.05 | 0.015 | 0.005 | 0.53 |
B-HARD450(Alloy type) | 0.8 | 0.05 | 0.015 | 0.005 | 0.65 |
B-HARD450CF(Easy wekding) | 0.5 | 0.05 | 0.015 | 0.005 | 0.63 |
B-HARD500(Alloy type) | 1 | 0.05 | 0.015 | 0.005 | 0.7 |
Typically mechanical properties for B-HARD | ||||
Grade | Quality level | Tensile Properties | ||
Yield strength | Tensile strength | Elongation | ||
(Rp0.2) | (Rm) | (A50) | ||
MPa | MPa | % | ||
B-HARD360(Basic type, Easy welding) | A | 900 | 1050 | 0.09 |
B | ||||
B-HARD360(Alloy type, Easy welding) | C | |||
D | ||||
E | ||||
B-HARD400(Basic type, Easy welding) | A | 950 | 1150 | 0.09 |
B | ||||
B-HARD400(Alloy type, Easy welding) | C | |||
D | ||||
E | ||||
B-HARD450(Alloy type, Easy welding) | A | 1100 | 1250 | 0.09 |
B | ||||
C | ||||
D | ||||
E | ||||
B-HARD500(Alloy type) | A | 1150 | 1400 | 0.09 |
B | ||||
C | ||||
D | ||||
E |
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Grade |
BWELDY700QL2/4 |
BWELDY700QL2/4-LC (low CEV) |
BWELD900QL2/4 |
BWELDY900QL2/4-LC (low CEV) |
BWELDY960QL2/4 |
BWELDY1100QL2/4 |
Delivery conditions: DQ/DQ+T |
C % max | Si % max | Mn % max | P % max | S % max | Ti % max | V % max |
0.22 | 0.86 | 1.8 | 0.025 | 0.012 | 0.07 | 0.14 |
Yield Strength | Thickness | Yield Strength | Tensile strength | A5 | CEV |
Mpa | mm | MPa | MPa | % | % |
700 | 8-50 | ≥700 | 780-940 | 14 | ≤0.55 (low CEV≤0.43) |
>50-100 | ≥660 | 760-940 | 14 | ≤0.60 | |
900 | 8-50 | ≥900 | 940-1150 | 12 | ≤0.60(low CEV≤0.58) |
>50-80 | ≥840 | 880-1150 | 12 | ||
960 | 8-50 | ≥960 | 980-1150 | 12 | ≤0.60 |
>50-60 | ≥900 | 920-1150 | 12 | ||
>60-80 | ≥860 | 880-1150 | 12 | ||
1100 | 8-30 | ≥1150 | ≥1250 | 20 | 8-25mm ≤0.60; |
>25mm ≤0.75 |
Boom, frame, rotating floor of concrete pump vehicle, hoisting machinery; blade of industry fan, machinery vehicle etc.
Grade |
Q500CFC/D |
Q550CFC/D |
Q620CFD/E |
Q690CFC/D |
Q690HP(welding without pre-heat) |
Q890CFD |
Q1150CFC/D |
Delivery conditions: DQ/DQ+T |
C % max. | Si % max. | Mn % max. | P % max. | S % max. | Ti % max | V % max |
0.12 | 0.5 | 2.2 | 0.025 | 0.012 | 0.07 | 0.14 |
Yield strength | Thickness | Yield Strength | Tensile strength | A50 | Pcm |
Mpa | mm | MPa | MPa | % | % |
500 | 8-50 | ≥500 | ≥610 | 17 | ≤0.20 |
>50-100 | ≥480 | ≥610 | 17 | ≤0.25 | |
550 | 8-50 | ≥550 | ≥670 | 16 | ≤0.23 |
>50-100 | ≥530 | ≥670 | 16 | ≤0.23 | |
620 | 8-50 | ≥620 | ≥710 | 15 | ≤0.25 |
>50-90 | ≥600 | ≥710 | 15 | ≤0.25 | |
690 | 16-60 | ≥690 | ≥770 | 14 | ≤0.28 |
(welding without pre-heat≤0.20) | |||||
890 | 12-60 | ≥890 | ≥940 | 12 | ≤40 ≤0.26; |
>40-60 ≤0.28 | |||||
1150 | 20-40 | ≥1150 | ≥1170 | 10 | Negotiation |
Top beam, gob shield, bed frame of coal mine hydraulic Supporter, machinery vehicle etc.
Grade |
BPM500E |
BPM690E |
Delivery conditions: DQ/DQ+T |
C % max | Si % max | Mn % max | P % max | S % max | Ti % max | V % max |
0.12 | 0.5 | 2.2 | 0.025 | 0.012 | 0.07 | 0.14 |
Yield strength | Thickness | Yield Strength | Tensile strength | A50 | Pcm |
Mpa | mm | MPa | MPa | % | % |
500 | 8-50 | ≥500 | ≥610 | 17 | ≤0.20 |
>50-100 | ≥480 | ≥610 | 17 | ≤0.25 | |
690 | 8-50 | ≥690 | ≥770 | 14 | ≤0.25 |
Floating Crane of ship, Port machinery etc.
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Galvanized steel is a type of steel that has been coated with a layer of zinc to protect it from corrosion. The process of coating steel with zinc is called galvanization. Galvanized steel is widely used in various industries due to its corrosion resistance, durability, and low cost.
The process of galvanization involves immersing the steel in a bath of molten zinc or by using an electrochemical process to deposit a layer of zinc onto the steel surface. The zinc coating acts as a sacrificial anode, protecting the underlying steel from corrosion.
Galvanized steel is commonly used in construction for things like roofing, siding, and gutters because it is strong, durable, and can withstand harsh weather conditions. It is also used in the automotive industry for parts such as body panels and chassis components. Additionally, it is used in the manufacture of pipes, fencing, and agricultural equipment.
There are several types of galvanized steel that are commonly used in different applications. These types include:
Hot-dip galvanized steel: This is the most common type of galvanized steel, where the steel is immersed in a bath of molten zinc to create a thick coating of zinc on the surface.
Electrogalvanized steel: This type of galvanized steel is produced by electroplating the steel with a thin layer of zinc. It is typically used for applications where a thinner coating is needed.
Galvannealed steel: This is a type of galvanized steel that has been annealed to create a zinc-iron alloy coating on the surface. It is commonly used in automotive and construction applications where a high-strength, corrosion-resistant material is needed.
Continuous galvanized steel: This type of galvanized steel is produced by passing the steel through a bath of molten zinc on a continuous basis. It is used for applications where a continuous length of coated steel is needed, such as in the manufacture of tubing or wire.
Zinc-aluminum-magnesium alloy coated steel: This is a relatively new type of galvanized steel that contains a coating of zinc, aluminum, and magnesium. It is highly corrosion-resistant and is commonly used in outdoor and marine applications.
Each type of galvanized steel has its own advantages and disadvantages, and the choice of which type to use depends on the specific application and requirements.
Galvanized steel offers several advantages over other materials, including:
Corrosion resistance: Galvanized steel is highly resistant to corrosion and rust, making it ideal for use in harsh environments. The zinc coating acts as a barrier between the steel and the environment, preventing rust and corrosion from forming.
Durability: Galvanized steel is a very durable material that can withstand extreme temperatures and weather conditions. It is also resistant to damage from impacts and other forms of physical stress.
Low maintenance: Galvanized steel requires very little maintenance and is easy to clean. The zinc coating helps to prevent dirt and debris from sticking to the surface, making it easy to wipe clean.
Cost-effective: Galvanized steel is a relatively inexpensive material, especially when compared to other corrosion-resistant materials like stainless steel. This makes it a popular choice for applications where cost is a primary concern.
Easy to work with: Galvanized steel is easy to cut, shape, and weld, making it a versatile material for a wide range of applications.
Galvanized steel is used in a wide range of applications, including:
Construction: Galvanized steel is commonly used in the construction industry for roofing, siding, gutters, and downspouts. It is also used for structural support, such as in steel framing, beams, and columns.
Automotive: Galvanized steel is used in the automotive industry for body panels, exhaust systems, and chassis components. It is valued for its durability, corrosion resistance, and ability to withstand impact.
Electrical: Galvanized steel is used for electrical conduits, cable trays, and support systems due to its strength and corrosion resistance.
Agriculture: Galvanized steel is used for fencing, gates, and other agricultural equipment because of its strength, durability, and ability to withstand harsh weather conditions.
Industrial: Galvanized steel is used in a wide range of industrial applications, including storage tanks, pipes, and scaffolding. It is valued for its corrosion resistance and ability to withstand extreme temperatures.
Household: Galvanized steel is used in many household items, such as garbage cans, mailboxes, and laundry tubs. It is valued for its durability, corrosion resistance, and affordability.
Galvanized steel is a sustainable material that offers a number of environmental benefits. The zinc coating on galvanized steel provides a long-lasting, protective barrier that helps to extend the life of the steel, reducing the need for frequent replacements. This can help to conserve natural resources and reduce waste. Additionally, galvanized steel is a highly recyclable material, with the ability to be recycled indefinitely without losing its properties or quality. This makes it a preferred choice for manufacturers looking to reduce their environmental impact and meet sustainability goals. Furthermore, galvanizing is a relatively low-energy process, using less energy compared to other methods of corrosion protection. These environmental benefits, combined with the cost-effectiveness and durability of galvanized steel, make it a sustainable choice for a wide range of applications.
Grade | Thickness(mm) |
BHARDY360 | 6-100 |
BHARDY400 | |
BHARDY450 | |
BHARDY500 | |
Mainly used for the engineering machine of mine. construction and agriculture such as bulldozer, excavator, dumper. |
Grade | Chemical composition% | |||||
C | Si | Mn | P | S | Cr | |
BHARDY360 | ≤0.20 | ≤0.60 | ≤1.60 | ≤0.025 | ≤0.015 | ≤0.80 |
BHARDY400 | ≤0.22 | ≤0.70 | ≤1.60 | ≤0.025 | ≤0.010 | ≤1.00 |
BHARDY450 | ≤0.26 | ≤0.70 | ≤1.60 | ≤0.020 | ≤0.010 | ≤1.10 |
BHARDY500 | ≤0.30 | ≤0.70 | ≤1.60 | ≤0.020 | ≤0.010 | ≤1.20 |
Grade | Chemical composition% | ||||
Ni | Ti | Mo | Alt | B | |
BHARDY360 | ≤0.50 | ≤0.05 | ≤0.50 | ≥0.015 | ≤0.005 |
BHARDY400 | ≤0.70 | ≤0.05 | ≤0.50 | ≥0.015 | ≤0.005 |
BHARDY450 | ≤0.80 | ≤0.05 | ≤0.55 | ≥0.015 | ≤0.005 |
BHARDY500 | ≤1.00 | ≤0.05 | ≤0.60 | ≥0.015 | ≤0.005 |
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Grade | Thickness(mm) |
BWELDY700QL2 | 10-80 |
BWELDY700QL4 | |
Mainly used for the excavator, forklft, concrete mixter, motocrane, hydraulic support and huge hoist. | |
BWELDY900QL2 | 10-50 |
BWELDY900QL4 | |
BWELDY960QL2 | |
BWELDY960QL4 | |
BWELDY1100QL2 | |
BWELDY1100QL4 | |
Mainly used for the excavator, forklft, concrete mixter, motocrane, hydraulic support and huge hoist. |
Grade | Chemical composition% | ||||||||
C | Si | Mn | P | S | Nb | Ti | V | Al | |
BWELDY700QL2 | ≤0.18 | ≤0.50 | ≤1.60 | ≤0.025 | ≤0.015 | ≤0.05 | ≤0.05 | ≤0.06 | ≥0.018 |
BWELDY700QL4 | ≤0.18 | ≤0.50 | ≤1.60 | ≤0.020 | ≤0.010 | ≤0.05 | ≤0.05 | ≤0.06 | ≥0.018 |
BWELDY900QL2 | ≤0.20 | ≤0.50 | ≤1.70 | ≤0.025 | ≤0.015 | ≤0.05 | ≤0.05 | ≤0.06 | ≥0.018 |
BWELDY900QL4 | ≤0.20 | ≤0.50 | ≤1.70 | ≤0.020 | ≤0.010 | ≤0.05 | ≤0.05 | ≤0.06 | ≥0.018 |
BWELDY960QL2 | ≤0.20 | ≤0.50 | ≤1.70 | ≤0.025 | ≤0.015 | ≤0.05 | ≤0.05 | ≤0.06 | ≥0.018 |
BWELDY960QL4 | ≤0.20 | ≤0.50 | ≤1.70 | ≤0.020 | ≤0.010 | ≤0.05 | ≤0.05 | ≤0.06 | ≥0.018 |
Grade | Thickness | Mechanical properties | ||
YS(MPa) | TS(MPa) | EL% | ||
BWELDY700QL2 | ≤50 | ≥700 | 770-940 | ≥14 |
>50 | ≥670 | 760-930 | ≥14 | |
BWELDY700QL4 | ≤50 | ≥700 | 770-940 | ≥14 |
>50 | ≥670 | 760-930 | ≥14 | |
BWELDY900QL2 | ≤50 | ≥900 | 940-1150 | ≥12 |
>50 | – | – | ≥12 | |
BWELDY900QL4 | ≤50 | ≥900 | 940-1150 | ≥12 |
>50 | – | – | ≥12 | |
BWELDY960QL2 | ≤50 | ≥960 | 980-1150 | ≥12 |
>50 | – | – | ≥12 | |
BWELDY960QL4 | ≤50 | ≥960 | 980-1150 | ≥12 |
>50 | – | – | ≥12 |
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Grade | Thickness(mm) |
BLY160 | 12-100 |
BLY225 | |
Mainly processed as structural component of shock resistent construction, such as energy consumption damper. |
Grade | Chemical composition% | |||||
C | Si | Mn | P | S | N | |
BLY160 | ≤0.05 | ≤0.10 | ≤0.50 | ≤0.025 | ≤0.015 | ≤0.006 |
BLY225 | ≤0.10 | ≤0.10 | ≤0.60 | ≤0.025 | ≤0.015 | ≤0.006 |
Grade | Mechanical properties | ||
YS(Mpa) | TS(Mpa) | EL% | |
BLY160 | 140-180 | 220-320 | ≥45 |
BLY225 | 205-245 | 300-400 | ≥40 |
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Grade | Thickness(mm) |
08Ni3DR | 5-80 |
Mainly processed as structural component and equipment of pressure vessels at -100~100℃. | |
06Ni9DR | 5-40 |
Mainly processed as structural component and equipment of pressure vessels at -196~100℃. |
Grade | Chemical composition% | |||||||
C | Si | Mn | P | S | Ni | Mo | V | |
08Ni3DR | ≤0.08 | 0.15-0.35 | 0.30-0.80 | ≤0.010 | ≤0.005 | 3.25-3.70 | ≤0.12 | ≤0.05 |
06Ni9DR | ≤0.08 | ≤0.35 | 0.30-0.80 | ≤0.008 | ≤0.004 | 8.50-10.0 | ≤0.10 | ≤0.01 |
Grade | Thickness(mm) | Mechanical properties | ||
YS(MPa) | TS(MPa) | EL% | ||
08Ni3DR | 5-60 | ≥320 | 490-620 | ≥21 |
>60-80 | ≥300 | 480-610 | ||
06Ni9DR | 5-30 | ≥560 | 680-820 | ≥18 |
>30-40 | ≥550 |
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Grade | Thickness(mm) |
B610E(08MnNiVR) | 10-45 |
B610E(12MnNiVR) | 10-45 |
Mainly processed as structural component and equipment of pressure vessels and crude oil tank. | |
B610CF(07MnMoVR) | 10-75 |
Utility: Mainly processed as structural component and equipment of pressure vessels and pressure steel tube at -20~- 100°C. | |
B610CF-L1(07MnNiVDR) | 10-75 |
Mainly processed as structural component and equipment of pressure vessels and pressure steel tube at -40~100°C. | |
B610CF-L2 (07MnNiMoDR) | 10-75 |
Mainly processed as structural component and equlpment of pressure vessels and pressure steel tube at -50~ 100C. |
Grade | Thickness(mm) | Chemical composition% | |||||
C | Si | Mn | P | S | Cu | ||
B610E(08MnNiVR) | 10-45 | ≤0.11 | 0.15-0.40 | 1.20-1.60 | ≤0.015 | ≤0.005 | ≤0.25 |
B610E(12MnNiVR) | 10-45 | ≤0.15 | 0.15-0.40 | 1.20-1.60 | ≤0.015 | ≤0.005 | ≤0.25 |
B610CF(07MnMoVR) | 10-60 | ≤0.09 | 0.15-0.40 | 1.20-1.60 | ≤0.015 | ≤0.007 | ≤0.25 |
B610CF-L1(07MnNiVDR) | 10-60 | ≤0.09 | 0.15-0.40 | 1.20-1.60 | ≤0.015 | ≤0.005 | ≤0.25 |
B610CF-L2(07MnNiMoDR) | 10-50 | ≤0.09 | 0.15-0.40 | 1.20-1.60 | ≤0.015 | ≤0.005 | ≤0.25 |
Grade | Thickness(mm) | Mechanical properties | ||
YS(MPa) | TS(MPa) | EL% | ||
B610CF(07MnMoVR) | 10-60 | ≥480 | 610-730 | ≥17 |
>60-75 | ≥470 | 590-710 | ≥17 | |
B610CF-L1(07MnNiVDR) | 10-60 | ≥480 | 610-730 | ≥17 |
>60-75 | ≥470 | 590-710 | ≥17 | |
B610CF-L2(07MnNiMoDR) | 10-60 | ≥480 | 610-730 | ≥17 |
>60-70 | ≥470 | 590-710 | ≥17 |
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Grade | Thickness(mm) |
B610CFHQL2 | 10-150 |
B780CFHQL2 | 10-150 |
B610CFHML2 | 10-60 |
B780CFHML2 | 10-60 |
Mainly processed as pressure steel tube,volute, bifurcated pipe which can be served at -20℃. | |
B610CFHQL4 | 10-150 |
B780CFHQL4 | 10-150 |
B610CFHQL4 | 10-60 |
B780CFHQL4 | 10-60 |
Mainly processed as pressure steel tube, volute, bifurcated pipe which can be served at -40℃. | |
B780CFHQL5 | 10-150 |
B780CFHML5 | 10-60 |
Mainly processed as pressure steel tube, volute, bifurcated pipe which can be served at -50℃. |
Grade | Thickness(mm) | Chemical composition% | |||||
C | Si | Mn | P | S | Cu | ||
B610CFHQL2 | 10-80 | ≤0.09 | ≤0.40 | 0.60-1.60 | ≤0.015 | ≤0.007 | ≤0.25 |
B610CFHML2 | 10-80 | ≤0.09 | ≤0.40 | 0.60-1.60 | ≤0.015 | ≤0.007 | ≤0.25 |
B610CFHQL4 | 10-80 | ≤0.09 | ≤0.40 | 0.60-1.60 | ≤0.015 | ≤0.007 | ≤0.25 |
B610CFHML4 | 10-80 | ≤0.09 | ≤0.40 | 0.60-1.60 | ≤0.015 | ≤0.007 | ≤0.25 |
B780CFHQL2 | 10-80 | ≤0.09 | ≤0.40 | 0.60-1.60 | ≤0.015 | ≤0.007 | ≤0.40 |
B780CFHML2 | 10-80 | ≤0.09 | ≤0.40 | 0.60-1.60 | ≤0.015 | ≤0.007 | ≤0.40 |
B780CFHQL4 | 10-80 | ≤0.09 | ≤0.40 | 0.60-1.60 | ≤0.015 | ≤0.007 | ≤0.40 |
B780CFHML4 | 10-80 | ≤0.09 | ≤0.40 | 0.60-1.60 | ≤0.015 | ≤0.007 | ≤0.40 |
B780CFHQL5 | 10-80 | ≤0.09 | ≤0.40 | 0.60-1.60 | ≤0.015 | ≤0.007 | ≤0.40 |
B780CFHML5 | 10-80 | ≤0.09 | ≤0.40 | 0.60-1.60 | ≤0.015 | ≤0.007 | ≤0.40 |
Grade | Thickness(mm) | Mechanical properties | ||
YS(MPa) | TS(MPa) | EL% | ||
B610CFHQL2 | 10-75 | ≥490 | 610-740 | ≥17 |
>75-150 | ≥470 | 590-720 | ||
B610CFHML2 | 10-75 | ≥490 | 610-740 | ≥17 |
>75-150 | ≥470 | 590-720 | ||
B610CFHQL4 | 10-75 | ≥490 | 610-740 | ≥17 |
>75-150 | ≥470 | 590-720 | ||
B610CFHML4 | 10-75 | ≥490 | 610-740 | ≥17 |
>75-150 | ≥470 | 590-720 | ||
B780CFHQL2 | 10-50 | ≥690 | 780-920 | ≥15 |
>50-150 | ≥670 | 760-900 | ||
B780CFHML2 | 10-50 | ≥690 | 780-920 | ≥15 |
>50-150 | ≥670 | 760-900 | ||
B780CFHQL4 | 10-50 | ≥690 | 780-920 | ≥15 |
>50-150 | ≥670 | 760-900 | ||
B780CFHML4 | 10-50 | ≥690 | 780-920 | ≥15 |
>50-150 | ≥670 | 760-900 | ||
B780CFHQL5 | 10-50 | ≥690 | 780-920 | ≥15 |
>50-150 | ≥670 | 760-900 | ||
B780CFHML5 | 10-50 | ≥690 | 780-920 | ≥15 |
>50-150 | ≥670 | 760-900 |
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Prepainted steel is a type of coated steel product that is produced by applying a layer of paint or other protective coating to the surface of the steel substrate. The composition of prepainted steel can vary depending on the specific requirements of the product, but typically includes the following components:
Steel substrate: The base material of prepainted steel is typically a high-quality carbon steel or alloy steel sheet that has been cold-rolled or hot-rolled to the desired thickness.
Pre-treatment: The steel substrate is first subjected to a pre-treatment process to ensure that the surface is clean and free from any contaminants. This process typically involves a combination of cleaning, degreasing, and chemical treatment to remove any rust, oil, or other impurities from the surface.
Primer: A layer of primer is then applied to the surface of the steel substrate to improve the adhesion of the paint or coating. The primer typically contains a combination of pigments, resins, and other additives to provide good corrosion resistance and adhesion.
Topcoat: The final layer is the topcoat, which is typically made up of a combination of pigments, resins, and other additives to provide the desired color, gloss, and durability. The topcoat may also contain additional ingredients such as UV stabilizers or anti-graffiti agents to enhance the performance of the coating.
Overall, the composition of prepainted steel is designed to provide a high-quality, durable, and attractive finish that is resistant to corrosion, weathering, and other environmental factors.
Prepainted steel, also known as pre-coated steel or color-coated steel, is a type of steel that has been coated with a layer of paint or other protective coating. There are several methods used to produce prepainted steel, including coil coating, continuous color coating, and electrostatic painting.
Coil coating: Coil coating is the most common method used to produce prepainted steel. In this process, a coil of steel is cleaned, treated with a chemical primer, and then coated with a layer of paint or other protective coating. The coil is then baked in an oven to cure the coating and create a durable finish.
Continuous color coating: Continuous color coating is similar to coil coating, but it is used for larger sheets of steel. In this process, the steel sheet is cleaned, primed, and coated with a layer of paint or other protective coating. The sheet is then cured in an oven and cut to size.
Electrostatic painting: Electrostatic painting is a process in which the steel is coated with a paint or powder using an electrostatic charge. The paint or powder is sprayed onto the steel, and the electrostatic charge attracts it to the surface of the metal. The steel is then baked in an oven to cure the coating.
Prepainted steel is a type of metal product that has a layer of paint or coating applied to its surface before it is sold. This coating is typically made from a combination of resins, pigments, and other additives that provide the steel with a range of beneficial properties. One of the main benefits of prepainted steel is its resistance to corrosion, which can help to prolong its lifespan and reduce the need for maintenance. Additionally, prepainted steel is available in a wide variety of colors and finishes, making it a popular choice for a range of applications in the construction, automotive, and appliance industries. Other properties of prepainted steel may include resistance to weathering, UV radiation, and abrasion, as well as the ability to withstand high temperatures and humidity levels.
Here are some common applications of prepainted steel:
Building and construction: Prepainted steel is widely used in the construction industry for roofing, cladding, and facade systems. The material is popular due to its durability, ease of installation, and ability to create different colors and designs.
Automotive industry: Prepainted steel is also used in the automotive industry for various applications such as body panels, bumpers, and trim. The material is lightweight, corrosion-resistant, and provides an excellent finish.
Appliances: Prepainted steel is commonly used in the production of appliances such as refrigerators, washing machines, and dryers. The material is durable, easy to clean, and can be coated with different colors and patterns to match the appliance design.
Electrical industry: Prepainted steel is used in the production of electrical enclosures, control cabinets, and switchgear. The material is resistant to chemicals, weather, and UV radiation.
Furniture: Prepainted steel is used in the production of furniture such as desks, chairs, and cabinets. The material is strong, durable, and can be coated with different colors and designs to match the interior decor.
Packaging: Prepainted steel is used in the production of packaging materials such as cans, containers, and closures. The material is lightweight, corrosion-resistant, and provides a high-quality finish.
Overall, prepainted steel has a wide range of applications due to its durability, versatility, and aesthetic appeal.