钢铁相关术语表英语.docx

1、钢铁相关术语表英语Glossryumerouters re s i cont wit th anufture, se n ue coatd sl het. The ollin lis efins the ore cmmon terms:A B | C | D | |F | G | H | K | L | M | O | | Q | R | S | T | U | W Y AAging - Changes in physical and mechanical properties that occur when low carbon steel is stored for some time.

2、Aging is also accelerated by exposure of steel to elevated temperatures.Annealing - A process involving high-temperature heating and cooling of the as-rolled cold rolled steel substrate to make it softer and more formable.Return to topBBacker Coat - Usually refers to the coating on the reverse side

3、of a prepainted sheet. The backer coating is generally not as narrowly specified with reference to its color, thickness and composition as is the topcoat.Return to topCCamber - The deviation of a side edge from a straight line, the measurement being taken on the concave side with a straight edge.Car

4、bon Steel - Steel which owes its properties chiefly to carbon without substantial amounts of other alloying elements; also known as straight carbon steel or plain carbon steel.Chemical Treatment - An aqueous solution of corrosion-inhibiting chemicals, typically chromates or chromate/phosphate.Coil B

5、reaks - Creases or ridges in sheet that appear as parallel lines across the direction of rolling, and that generally extend the full width of the sheet or strip. Also referred to as Lders Lines.Cold Rolled Products - Flat rolled products for which the required final thickness has been obtained by ro

6、lling at room temperature.Color Standard - A painted sheet panel with a prescribed color of paint representing the precise color it is intended to produce in the prepainted sheet. The color standard will preferably also be expressed in terms of physical attributes of hue, lightness and saturation ca

7、lled tristimulus values or derivatives of these values. A complete color standard definition will usually include painted panels representative of the limits of acceptable deviation from the precise standard color as well.Commercial Steel (CS) - Sheet of this quality is for simple bending or moderat

8、e forming. Commercial Steel sheet can be bent flat upon itself in any direction at room temperature.Continuous Casting - A casting technique in which a cast shape is continuously withdrawn through the bottom of the mold as it solidifies, so that its length is not determined by mold dimensions.Conver

9、sion Coating - The chemical treatment film applied to the steel or metallic coated sheet prior to painting.Corrosion - Gradual chemical or electrochemical attack on a metal by atmospheric moisture or other agents.Critical Surface - Intended for material applied to critical exposed/painted applicatio

10、ns where cosmetic surface imperfections are objectionable. The prime side surface will be free of repetitive type imperfections, gouges, scratches, scale and slivers. This surface can only be furnished as a pickled product.Crown - A contour on a sheet where the thickness increases from some edge mea

11、surement to the center.Cut Edge - Removal of the as-rolled hot mill edge. Coil ends are cropped back to gauge when cut edge is ordered.Cut to Length - When a specific or discrete length is specified.Return to topDDeep Drawing - The process of working metal blanks in dies on a press into shapes which

12、 are usually more or less cup-like in character.Drawing - Forming recessed parts by forcing the plastic flow of metal in dies.Drawing Steel (DS) - Sheet of this quality has a greater degree of ductility and is more consistent in performance than Commercial Steel because of higher standards in produc

13、tion, selection and melting of the steel.Deep Drawing Steel (DDS) - Sheet of this designation should be used when Drawing Steel will not provide a sufficient degree of ductility for fabrication of parts having stringent drawing requirements, or applications that require the sheet be free from aging.

14、 This quality is made by special steelmaking and finishing practices.Dent Resistant - BH Series - Sheet of this designation is produced from partially stabilized steel and offers a unique combination of as-received formability and final properties after fabrication. Sheet of this designation combine

15、s strength and high formability. Although this steel is non-aging at room temperature, it gains strength from work-hardening during fabrication and from carbon-aging during paint-baking. (Sometimes referred to as bake hardenable.)Extra Deep Drawing Steel - Sheet of this designation has superior form

16、ability and excellent uniformity. It is produced from steel having a very low carbon content with stabilizing elements added to make it interstitial free. It is a non-aging steel sheet with high resistance to thinning during drawing and is suitable for critical forming applications.Dry Film Thicknes

17、s (DFT) - The thickness of the dry paint film.DS Type B Steel - Product intended for applications that require particularly severe drawing and forming.Ductility - The ability to permit change of shape without fracture. In flat rolled steel, ductility is usually measured by hardness or mechanical pro

18、perties in a tensile test.Return to topEElongation - The percent increase of a given distance (usually 2 inches) prior to fracture during tensile testing.Embossed sheet - An embossed sheet is one having a prominent, impressed texture or pattern on its surface(s). If the defined texture is applied to

19、 essentially on surface only, it is most properly termed a coined surface. If the texture or pattern carries through the entire body of the sheet and appears on both surfaces it is a true embossed surface.Extra Smooth Galvanized - An Extra-Smooth finish is imparted to hot-dip metallic-coated steel s

20、heet by temper rolling after coating to decrease the surface relief that occurs when the molten coating solidifies. The spangle pattern (grain pattern) is made distinctly less visible by the matte finish imparted by the rolling operation. Most Extra-Smooth sheet is intended for either prepainted or

21、post painted applications.Return to topFFlatness - Flatness is a measure of a cut length sheets ability to conform to a flat horizontal surface. Maximum deviation from that surface is the degree to which the sheet is out of flat. Flatness is often expressed quantitatively in either Steepness or I-Un

22、its.Finish Coat - The topcoat or exposed prime side paint film.Flexibility - The degree to which a paint film can withstand deformation without significant change in color and appearance.Return to topGGloss - The property of a surface related to its ability to reflect light. The most common type of

23、gloss of interest to appearance attributes is specular gloss. The parameters which must be specified for the determination of this property are the angles of incidence of the light source, the angle of viewing of the gloss and the angular dispersions of the measuring beams.Return to topHHardness - R

24、esistance of metal to penetration of the surface.High Strength - Product intended for applications where greater strength is critical. High Strength typically begins at 35 ksi minimum yield strength.High Strength Low Alloy (HSLA) - A specific group of steels in which the strength levels are achieved

25、 by the addition of moderate amounts of alloying elements. The most common are columbium, vanadium or titanium.Hot Rolled Sheet - Steel sheet that is processed to its final thickness by rolling at high temperatures on a specially designed hot-rolling facility. Also commonly known as hot rolled unpro

26、cessed.Hot Rolled Sheet Non-Temper Rolled - A U. S. Steel definition for product supplied as a coil directly off the Hot Strip Mill with no additional processing.Hot Rolled Sheet Pickled - A U. S. Steel definition for a mill edge coil that is pickled, oiled and temper rolled with coil ends cropped b

27、ack to meet gauge tolerances.Hot Rolled Sheet Pickled Non-Temper Rolled - A U. S. Steel definition for a mill edge coil that is pickled and oiled with coil ends cropped back to meet gauge tolerances.Hot Rolled Sheet Products - Flat steel products that are brought to final thickness by rolling throug

28、h a Hot Strip Mill at high temperatures.Return to topIImpact Test - A test which is intended to evaluate the brittleness, toughness, adhesion and hardness of paint films applied to metals by subjecting them to an indent impact force.Inclusions - Particles of foreign material (such as oxides, sulfide

29、s or silicates) in steel as cast.Inclusion Shape Control - The use of rare earth metals or calcium alloys to control the morphology of inclusions, in order to provide improved mechanical properties for select applications.Intercoat Adhesion - The adherence which is observed between the primer and to

30、pcoat of a paint system.Return to topKKilled Steel -Steel that is deoxidized by silicon or aluminum to reduce the oxygen content in the molten steel to a minimum prior to solidification of the metal. Killed steels have more uniform properties and chemical composition than other types.Return to topLL

31、eveling - Flattening of rolled sheet by reducing or eliminating distortions.Laminate - A composite construction of dissimilar materials, such as a metal and plastic film, usually made up as sheet product and intended to function as though it were a single material.Lders Lines - See coil breaks.Return to topMMatte Finish - A more uniform surface finish imparted