• PROFESSIONAL FACTORY SALE spring steel strip System 1
  • PROFESSIONAL FACTORY SALE spring steel strip System 2
  • PROFESSIONAL FACTORY SALE spring steel strip System 3
PROFESSIONAL FACTORY SALE spring steel strip

PROFESSIONAL FACTORY SALE spring steel strip

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Quick Details

  • Standard:AISI, ASTM, DIN, GB, JIS

  • Steel Grade:Q235B

  • Thickness:0.15-10mm, 0.15-4.00mm

  • Place of Origin:Hebei, China (Mainland)

  • Technique:Cold Rolled

  • Surface Treatment:Polished

  • Application:roller shutter door

  • Model Number:Spring Steel Strip

  • Brand Name:Dinghe

  • Width:8.0-300mm

  • Length:in coil

  • steel grade:CK45,CK50,CK55,CK67, CK75

  • surface treatment:Polished,Polish,tempered blue, yellow, green

  • edge:rounded,slit,sloped

  • heat treated:Hardened tempered,Annealed

  • hardness:H&T:40-55HRC

  • property:wear resistant

Packaging & Delivery

Packaging Details:Each bundle with anti-rust paper and light oil then wrapped in plastic film and put in 20ft container for standard sea worthy
Delivery Detail:30 days after the order confirmed

Specifications

CK67 Mn high carbon steel strip rolling shutter spring
1.Grade:CK45,CK50,CK55,CK60,CK67
2.Hardness:Annealed<19HRC,H&T:40-55H

Hardened and Tempered   spring steel strip

Grade: ck60,ck67,ck75(SAE 1065, SAE 1070, SAE 1075) , 60Si2Mn, 50CrV4, stainless 420, 430

Size:0.15-2.5mm*8-300mm

Hardness: 32-55hrc

Surface: gray blue, polished blue, bright, bright polished...

Edge: rounded, slit, both rounded

Coil weight:  as your requirement

Standard of surface: No flaw, burr, rust.

Yield Strees(Strength): 370-1175 N/mm2

Tensile Strength: 540-1275 N/mm2

Packing:

1 Each coil is closely covered by plastic film.

2 Outer is compound paper packing.

3 Delivered in iron pallets.

Applications: spring for roller shutter,hand tools,construction tools, metal parts, auto parts....etc

Q:I want to save water $$, so I want to use frozen steel to cool my coke. possible or no?
can't freeze it but ya can make it very cold
Q:What are the dimensions of steel coils used in the agricultural machinery industry?
The specific application and requirements play a significant role in determining the dimensions of steel coils utilized in the agricultural machinery industry. Generally, the dimensions of steel coils in this industry fall between 0.5 and 2.0 millimeters in thickness and 600 to 1500 millimeters in width. These dimensions are commonly utilized for agricultural machinery components like panels, frames, brackets, and reinforcements. It is worth mentioning that these dimensions can be tailored to meet the specific needs of the machinery or the manufacturer's specifications.
Q:What are the different types of steel grades used for coil production?
There are various types of steel grades used for coil production, including carbon steel, stainless steel, high-strength low-alloy (HSLA) steel, and advanced high-strength steel (AHSS). Each grade has its own unique properties and is chosen based on the specific requirements of the application.
Q:For some reason, if you rub iron oxide or lodestone (both very crumbly, dark, mineral-like materials) into soft, unhardened steel, their particles actually get stuck into the surface of the steel (that is, darkening it). My question is, how does this work? How come iron oxide and lodestone can get stuck, and how come other materials (like silicone carbide, for example) do not?My second question is, are there any materials that can get stuck into steel, that is also blue in color, and how would I best obtain it?
If you look at the surface of untreated steel even with a low power microscope you will see a surface that is far from smooth, there are pits and occlusions dotting the surface. Steel is not polished when you see it this way so the only treatment to the surface was the extrusion process or forming done on it by the presses. Iron oxide has a very small particle size and when pulverized into a powder it can easily fill the pits and voids in the steel surface coloring it.
Q:Is steel easier to weld?Which is more brittle/less flexible?
Note: the easiest way to join steel to aluminum is to drill holes and BOLT them together...... You cannot WELD steel to aluminum.(except using extreme methods like explosion welding......) For all intents and purposes they are dissimilar metals, meaning they will not bond to each other. Also, aluminum has a much lower melting point than steel. It is possible to join steel and aluminum by *Soldering,* using tin/zinc hard solder. This requires a special flux designed exclusively for soldering aluminum though. The heating process is also a bit delicate as you must avoid overheating the joint. I work as a welder and I've only soldered Al three or four times. Steel is easiest to weld by far. If you set the equipment correctly, a six year-old kid can make a good weld on steel. Aluminum requires special equipment and procedures to weld. It's not easy. The brittleness of aluminum depends on it's alloy content. Most of the aluminum that's used today is not pure, rather it's in the form of aluminum ALLOYS which contain either zinc, magnesium, silicon, or manganese. these elements increase the strength dramatically, but also make it much less ductile. Commercially pure (CP) aluminum is very ductile, but it's also rather weak. Pure aluminum is used to make aluminum foil, as it's so soft and ductile it can easily be rolled paper-thin. The best aluminum alloys can come near in strength to mild steel, but weigh less than half as much as steel. Note that steel itself is an alloy of iron and carbon, Carbon increases the strength of iron in the same way that zinc or magnesium increase aluminum's strength. Most of the commonly used aluminum alloys are somewhat more brittle than mild steel, but not greatly so.
Q:What kind of insulation should be used in a steel building?
Vinyl fiberglass insulation is getting popular with the steel building industry. The vinyl fiberglass insulation offers a shining look to the building and is resistant to dust as well as condensation. Effective ventilation inside the steel building can also help in preventing the condensation process inside the building. Besides, the building doors should be insulated effectively so as to minimize the heat loss. Be sure to seal all the door gaps in the building. All these steps are necessary to follow to get an effectively insulated steel building.
Q:How are steel coils inspected for impact resistance?
To ensure the durability and ability of steel coils to withstand external forces, they are commonly inspected for impact resistance using various methods. One such method is the drop test, where a steel coil is dropped from a specified height onto a hard surface, simulating the impact it may experience during transportation or handling. During the drop test, the coil is visually examined for visible signs of damage, such as dents, cracks, or deformations. Additionally, other examinations like ultrasonic testing or magnetic particle inspection may be conducted to detect hidden internal defects that could compromise its impact resistance. Another method employed to inspect steel coils for impact resistance is the pendulum test. This involves swinging a pendulum with a known weight and height to strike the surface of the coil. The amount of energy absorbed by the coil during the impact is measured and used to assess its resistance to impact. Furthermore, laboratory tests like Charpy impact testing may be conducted on steel coils to determine their resistance to sudden impacts. This test involves striking a notched sample of the coil with a pendulum hammer, measuring the energy absorbed by the sample, and evaluating its impact strength. Overall, a combination of drop tests, visual inspections, non-destructive testing methods, pendulum tests, and laboratory tests are employed to inspect steel coils for impact resistance. These inspections ensure that the coils meet the required standards and can endure the potential challenges they may face during transportation, storage, and usage.
Q:Hi there! I just purchased two cookie sheets labeled as non-stick 100% carbon steel. I've never heard of carbon steel before, and I'm trying to be careful about not using certain products that are harmful to health such as aluminum and Teflon. Is this a safe metal choice for baking?
100 carbon steel baking sheet safe
Q:What are the different methods of coil slitting for steel coils?
There are several methods of coil slitting for steel coils, including rotary shear slitting, loop slitting, and drag slitting. Rotary shear slitting involves using rotating knives to cut the coil into narrower strips. Loop slitting involves creating a loop in the coil and feeding it through a set of knives to slit it. Drag slitting involves pulling the coil through stationary knives to slit it. Each method has its own advantages and is chosen based on the specific requirements of the application.
Q:I'm putting a bathroom in my basement. I'm an Ironworker btw. I wanted to go with steel studs due to the fact that they are light, and I won't have a big mess. I live in the Chicago area and they should be easy to find. Here is my question. Are they not being used anymore? I ordered 100 studs from Lowe's but they didn't have track. The delivery guy was a retired Carpenter and he told me that I got all the studs they had, they no longer stock steel studs, and they don't have track. Am I missing something? Menards didn't have track either.
Steel studs are mainly for commercial applications on non bearing walls. 100 studs, must be one big assed bathroom. Do yourself a favor and install a pressure treated bottom plate, even if you use steel studs.

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