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Sunday, August 21, 2016

Chinese Steel Standards

Dear Readers,

As you well aware due to globalization all works has been very competitive and it is helping us to exchange of knowledge and standards, in this scenario Chinese works are having more impact and competition throughout the world. Now it is very essential to know the Chinese standards and how it is indicated in drawings. Let us discuss how to identify and compare with our standards.
All Chinese standards are having prefix GB like IS for Indian Standard, JIS for Japanese. For Construction related works and other works different Chinese standards are followed, which are listed below.
 
GB = GuojiaBiaozhun ( National Standard in Chinese)
SY = Shi You (Petroleum)
JB = JianBiao (Construction Standard)
GB/T = T : Tuijian (recommended GB)
HG = HuaGong (PetroChemical)
Chinese standards for General structural steel (including chequred steel) is GB/T 700-2006. Grade of materials available is Q235 (A/B/C/D); Q275 (A/B/C/D).
Generally Chinese Steel Grades are Q195, Q215, Q235, Q255 and Q275 is used for Structural works. steel grades by the yield point of the letter on behalf of (Q) and yield point value is mentioned and sub grade A, B, C & D are used for further classification. For Example Q235A means, it is a carbon steel and having maximum yield strength of 235 Mpa.
For Steel section Channel is mentioned as "C"; Angles are mentioned as "L" and Beams are mentioned as “I “or “H " followed by number. To find out the size of section is number multiple by 10 is the size of member.
For Example C16 means Channel 160 mm depth. Similarly H10 means H section 100 mm depth.
If the same size but width or flange size is different then suffix a, b, c is shown. For example C20a & C20b, Both are 200 Channel however flange is 73 and 75 mm respectively. C20a means Channel 200 X 73 and C20b means Channel 200 X 75.
For More Details about European Steel Section Click Here
For More Details about Classification of Indian Steel Click Here
For More Details about Indian Standard for Rolled Steel Click Here

Sunday, August 7, 2016

Never Ever Give Up

Dear Readers,
 
Construction Industry is always having new issues / problems and all are not symmetric. Every time it is different. Solution is always fight for each issues and will have a result. Hence never ever give up. Below picture is best example.
 
 
Do not surrender whatever you are fighting for whatever trials you are going through.

For More Self Explanatory pictures please click Here
  

Sunday, July 24, 2016

Surface Preparation for Structural Steel

Dear Readers,

Effective life of coating of anti-corrosive paint applied to a steel surface is to a very large extent dependent on how thoroughly the surface has been prepared prior to painting.
 
Removing contamination and increasing surface roughness will allow maximum bond strength and adhesion to develop between coating and substrate. If the coating is applied to a well prepared substrate, they will have strong adhesion to that substrate and may be able to withstand these condition.
 
Coating performance is directly related to the quality of surface preparation.
 
Method of Surface Preparation 
1.       High Pressure Fresh Water Washing
2.       Solvent Cleaning or Degreasing
3.       Manual methods of Surface Preparation
4.       Power tool Methods of Surface Preparation
5.       Dry Abrasive Blasting
6.       Rotary or Wheelabrator blasting
7.       Slurry Blasting
8.       Hydro blasting
Blasting Standards
1.       ISO Standard (8501-1)
2.       Swedish Standards ( SIS 05 59 00)
3.       Steel Structure Painting Council Standards (SSPC-SP)
4.       British Standards Institution (BS4232)
5.       NACE Standards (National Association of Corrosion Engineers)
6.       JSRA Standards (Shipbuilding Research Association of Japan)
7.       Major Local Shipyard Standards
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Abbreviations (13) Acre (2) ANSI (1) Anti friction bearing (2) Apothecaries Mass (1) Avoirdupois Mass (1) AWG (4) AWS (1) BCR 295 (2) Beam (17) Bearings (5) Blasting & Painting (1) Bolt (4) CAR A/C (1) Cartoon (2) Cent (2) CHANNEL (5) Chequered Plate (1) Chinese (1) Civil (1) Classification (1) Cleaning (1) Cold Rolled Steel (2) Column Section (1) Computer (1) Construction Industry (2) 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 (4) Engineering Miracle (2) European Steel (3) Fibre Rope (3) Fire (1) FLAT (1) floating crane (1) Flood (1) GAUGE (9) General (17) Greetings (3) 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 (22) HSS (9) I-Beam (1) Information (3) Informations (3) Introduce (4) IPE (3) IS 1173 (5) IS 1786 (1) IS 3443 (2) IS 4923 (2) IS 808 (14) ISA (2) ISCR (1) ISHB (3) ISJB (4) ISJC (2) ISLB (3) ISLC (1) ISMB (3) ISMC (2) ISMCP (1) ISNT (2) ISSC (2) ISWB (3) JIS G3466 (1) Junior Beam (2) Junior Channel (2) Labour Law (1) Land Measurement (2) Light Beam (1) Light Channel (1) LPG Cylinder (1) Mass (2) Measurement (3) Metals (4) Mile Stone (2) Music Wire (4) MWG (6) Numbers (2) OCTOGAN (1) Painting (1) 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 (5) River on River (1) Rope (5) ROUND (1) Safety (8) Scale (1) Self Explanatory (4) SEP (4) Short cut key (1) Slit Tee (1) Specific Gravity (3) SQUARE (1) Steel (15) Steel Beam (6) Steel Section (5) Steel Section Type (4) Structural Steel (46) Surface Preparation (1) SWG (4) Technical (3) Tee Section (5) Thanks (5) Tools & Tackles (1) Torque (5) Troy Mass (1) TUBE (1) UB (2) UC (2) Unit of Mass (1) UNIT WEIGHT (41) Universal Beam (1) universal Column (2) Water (2) Weight (8) Welding (2) Wide Flange Beam (2) Wind (5) Wind Speed (3) Wire Rope (2) Wishes (9) WWD (1)

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