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Sunday, December 4, 2016

Grades of Rust for Steel Structure

Dear Readers,
 
Rust is having important role to finalaise the surface preparation for steel structure before painting. Four Rust grades, designated A, B, C and D respectively, are specified. The rust grades  are defined as follows
 
Grade-A : It is mainly adhering mill scale, but little rust
Grade-B : It is rusting and flaking of mill scale has begun
Grade-C : The mill scale is rushing away, with slight pitting
Grade-D : The mill scale has rusted away, with general pitting
 
Rust Grade photographs are as follows

GRADE-A
 
Steel Surface largely covered with adhering mill scale but little, if any, rust.
 
 
  
 
 
 
 
 
GRADE-B
 
Steel Surface which has begun to rust and form which the mill scale has begun to flake. 
 
 


 
 
 
GRADE-C
 
Steel Surface on which the mill scale has rusted away or from which it can be scraped, but with slight pitting visible under normal vision.
 
 
 

GRADE-D
Steel Surface on which the mill scale has rusted away and on which general pitting is visible under normal vision.
 
 
 
For More Details about Surface Preparation of Structural Steel Click Here
 

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Abbreviations (16) Acre (2) ANSI (1) Anti friction bearing (2) Apothecaries Mass (1) Avoirdupois Mass (1) AWG (4) AWS (1) BCR 295 (2) Beam (18) Bearings (5) Blasting & Painting (3) Blogoversary (2) Bolt (4) CAR A/C (1) Cartoon (2) Cent (2) CHANNEL (7) Chequered Plate (1) Chinese (2) Civil (1) Classification (1) Cleaning (2) Cold Rolled Steel (2) Column Section (1) Computer (1) Construction Industry (4) Conversion Table (2) Crane Rail (2) Density (1) Drill bit (1) Drill gauge (1) Drilling (1) EHS (1) Ellipcon Steel (1) Elliptical Hollow Section (1) EN 10083-3 (1) EN 10219 (1) Engineer Day (5) Engineering Miracle (2) European Steel (3) Fibre Rope (3) Fire (1) FLAT (1) floating crane (1) Flood (1) GAUGE (9) General (20) Greetings (4) H-beam (4) Handrail (1) Heavy Weight Beam (1) Helmet (1) HEXAGOAN (1) Hollow Rectangle (3) Hollow Square (5) Hollow Steel (10) Hot rolled Steel (25) HSS (9) I-Beam (2) Information (5) Informations (4) Introduce (4) IPE (3) IS 1173 (5) IS 1786 (1) IS 3443 (2) IS 4923 (2) IS 808 (15) ISA (2) ISCR (1) ISHB (3) ISJB (4) ISJC (2) ISLB (3) ISLC (2) ISMB (4) ISMC (2) ISMCP (1) ISNT (2) ISSC (2) ISWB (3) JIS G3466 (1) Junior Beam (2) Junior Channel (3) Labour Law (2) Land Measurement (2) Light Beam (1) Light Channel (3) LPG Cylinder (1) Mass (2) Measurement (3) Metals (4) Mile Stone (2) Music Wire (4) MWG (6) Numbers (3) OCTOGAN (1) Painting (3) Parallel Flange Channel (1) PFC (1) PIPE (1) Plastics (2) PPE (1) Precautions (1) Rain (1) Rebar (1) Reinforcement Rod (1) Reinforcemnt Steel (1) Reo (1) Rigging (7) River on River (1) Rope (6) ROUND (1) Safety (9) Scale (1) Self Explanatory (4) SEP (4) Short cut key (1) Sling (1) Slit Tee (1) Specific Gravity (3) SQUARE (1) Steel (17) Steel Beam (6) Steel Section (6) Steel Section Type (5) Structural Steel (51) Surface Preparation (3) SWG (4) SWL (1) Technical (5) Tee Section (5) Thanks (6) Tools & Tackles (2) Torque (5) Troy Mass (1) TUBE (1) Turnbuckle (1) UB (2) UC (2) Unit of Mass (1) UNIT WEIGHT (44) Universal Beam (1) universal Column (2) Water (2) Weight (8) Welding (3) Wide Flange Beam (2) Wind (6) Wind Speed (4) Wire Rope (2) Wishes (11) WWD (1)

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