Problem
Cleaning Agent
Comments
Routine Cleaning
All finishes
Soap or mild detergent and water (Preferably warm)
Sponge, rinse with clean water, wipe dry if necessary. Follow polish lines.
Fingerprints
All finishes
Soap and warm water or organic solvent (eg acetone, alcohol, methylated spirits)
Rinse with clean water and wipe dry. Follow polish lines.
Stubborn Stains and Discolouration.
All finishes.
Mild cleaning solutions, eg. Jif, specialty stainless steel cleaners.
Use rag, sponge or fibre brush (soft nylon or natural bristle. An old toothbrush can be useful). Rinse well with clean water and wipe dry. Follow polish lines.
Lime Deposits from Hard Water.
Solution of one part vinegar to three parts water.
Soak in solution then brush to loosen. Rinse well with clean water.
Oil or Grease Marks.
All finishes.
Organic solvents (eg. acetone, alcohol, methylated spirits, proprietary "safety solvents"). Baked-on grease can be softened beforehand with ammonia.
Clean after with soap and water, rinse with clean water and dry. Follow polish lines.
Rust and other Corrosion Products.
xposedEmbedded or Adhering "Free Iron".
Rust stains can be removed by adding one part of nitric acid to nine parts of warm water. Leave for 30 to 60 minutes, then wash off with plenty of water, and flush any drains thoroughly. See also previous section on Passivating.
Rinse well with clean water. Wear rubber gloves, mix the solution in a glass container, and be very careful with the acid. (see Precautions for acid cleaners)
Routine Cleaning of Boat Fittings.
Frequent washing down with fresh water.
Washing is recommended after each time the boat is used in salt water.
Cooking Pot Boiled Dry.
Remove burnt food by soaking in hot water with detergent, baking soda or ammonia.
Afterwards clean and polish, with a mild abrasive if necessary. See comments re steel wool.
Dark Oxide From Welding or Heat Treatment.
"Pickling Paste" or pickling solutions given on previous page.
Must be carefully rinsed, and use care in handling (see Precautions for acid cleaners).
Scratches on Polished (Satin) Finish.
Slight scratches - use impregnated nylon pads. Polish with scurfs dressed with iron-free abrasives for deeper scratches. Follow polish lines. Then clean with soap or detergent as for routine cleaning.
Do not use ordinary steel wool - iron particles can become embedded in stainless steel and cause further surface problems. Stainless steel and "Scotch-brite" scouring pads are satisfactory.
KM anchorage and wedge
KM anchorage system is a completed, independent building measure researched, IT has been widely adoped by modern construction, especially used in pre-tension or post-tension for concrete constructions as building materials. KM Series products are composed of tensioning anchor, holding anchor, connectors. It can be used to lock the steel strand wires on/under clases of 2000MPa standard strenght, which is usually in diameters of 12.7mm\12.9mm\15.2mm\15.7mm.
It has been verified by practice that various type of KM anchor also can be used for the different kinds of strand wires produced according to ASTM/BS/JIS/JIG/AS and other international strandards respectively only if its technical parameters shall marry the related detail materials.
We have our own anchor and wedge production base, our annual output is more than 2,000,000 sets. Enquiry please let us know your quantity, spec., hole
What is Hot Rolled Steel?
Hot rolled steel is steel that is processed when hot. Whenever steel is heated to extremely hot temperatures, it makes it easy to manipulate and create different thicknesses.
the  production of DaMing HRB400E and HPB300 products are widely used in Chinese' southern region highrise  buildings,Large power stations, Bridges, subway, tunnels, airports and other major projects,By the general customers the high praise.
Difference Between Hot- & Cold-Rolled Steel
Hot rolled and cold rolled steel are different in three major aspects: rolling temperature, thickness and physical properties. Coil or sheet steel is initially hot reduced from slabs, either to produce strip steel for further processing or to a finished product. Cold rolled steel starts with a hot rolled flat product that is further reduced in thickness through the rolling process, and a process that also changes the physical properties of the product.(primarily the crystalline structure)
Rolling Temperatures
Hot-rolling requires temperatures of 1,652 degrees to 2,012 degrees Fahrenheit (900 to 1,100 degrees Celsius), while cold-rolled steel is rolled at room temperature.
Steel coming off the finishing stand at the hot mill is cooled by water spray and coiled at temperatures of 932 degrees Fahrenheit (500 degrees Celsius) and 1,400 degrees Fahrenheit (760 degrees Celsius). The hot-rolled steel is then cooled to room temperature. Once at ambient temperature, the steel can be cold reduced or cold rolled.
Product Thicknesses
Typically, hot rolling begins with a standard 10-inch (250 mm) thick slab, either directly from a continuous caster or reheated to the desired temperature. The steel moves through a series of mill stands that reduce the slab to a hot roll strip with thicknesses ranging from 0.071 inches (1.80 mm) to 0.350 inches (8.89 mm).
Cold rolling through a second series of mills further reduces the hot rolled steel to a cold rolled product with a thickness range from .0126 inches (.32 mm) to .157 inches (3.99 mm).
Physical Properties
Steel's physical structure varies by product; heating and cooling change the molecular structure of the metal. Steel coming off the hot mill will be softer and more ductile than material further processed through a cold mill.
Ductility, measured by elongation testing, determines the amount of material deformation that occurs before the material fractures. Elongation (in 2 inches) for hot rolled is from 39 to 43 percent, while cold rolled ranges from 40 to 46 percent.

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