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Low price ASTM A36 S335 SS400 SAE 1006 Hot Rolled Carbon Steel Sheets Steel Plate
According to the minimum yield point of structural steel for hull, the strength levels are divided into general strength structural steel and high strength structural steel.
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Details description
According to the minimum yield point of structural steel for hull, the strength levels are divided into general strength structural steel and high strength structural steel.
The general strength structural steel of the China Classification Society code standard is divided into four quality levels: A, B, D, and E; the high-strength structural steel of the China Classification Society code standard has three strength levels and four quality levels:
|
A32 |
A36 |
A40 |
|
D32 |
D36 |
D40 |
|
E32 |
E36 |
E40 |
|
F32 |
F36 |
F40 |
A32 D32 E32 F32 ≤50mm Carbon equivalent Ceq,% is not more than 0.36
>50-100 carbon equivalent Ceq,% is not more than 0.4
A36 D36 E36 F36 ≤50mm Carbon equivalent Ceq,% not more than 0.38
>50-100 carbon equivalent Ceq,% is not more than 0.4
A40 D40 E40 F40≤50mm Carbon equivalent Ceq,% is not more than 0.4
>50-100 carbon equivalent Ceq,% none
Carbon equivalent calculation formula C eq(%)=C+Mn/6 +(Cr+Mo+V)/5 +(Ni+Cu)/15.....
Introductionedit
1. Steel for general strength hull structure
General strength hull structure steel is divided into 4 grades: A, B, D, E. The yield strength (not less than 235N/mm^2) of these 4 grades of steel is the same as the tensile strength (400～520N/mm^2) , It's just that the impact energy is different at different temperatures;
High-strength hull structure steel is divided into strength grades according to its minimum yield strength, and each strength grade is divided into A, D, E, F4 grades according to its impact toughness.
The yield strength of A32, D32, E32, F32 is not less than 315N/mm^2, and the tensile strength is 440～570N/mm^2. A, D, E, and F respectively indicate that they can be at 0°, -20°, The impact toughness that can be achieved under -40°, -60°;
The yield strength of A36, D36, E36, and F36 is not less than 355N/mm^2, and the tensile strength is 490～620N/mm^2. A, D, E, and F respectively indicate that they can be at 0°, -20°, The impact toughness that can be achieved under -40°, -60°;
The yield strength of A40, D40, E40, F40 is not less than 390N/mm^2, and the tensile strength is 510～660N/mm^2. A, D, E, and F respectively indicate that they can be at 0°, -20°, The impact toughness that can be achieved at -40°, -60°.
and also,
High-strength quenched and tempered steel for welded structure: A420, D420, E420, F420; A460, D460, E460, F460; A500, D500, E500, F500; A550, D550, E550, F550; A620, D620, E620, F620; A690, D690, E690, F690;
Steel for boilers and pressure vessels: 360A, 360B; 410A, 410B; 460A, 460B; 490A, 490B; 1Cr0.5Mo, 2.25Cr1Mo
Steel for mechanical structure: Generally, the above steel can be used;
Low temperature toughness steel: 0.5NiA, 0.5NiB, 1.5Ni, 3.5Ni, 5Ni, 9Ni;
Austenitic stainless steel: 00Cr18Ni10, 00Cr18Ni10N, 00Cr17Ni14Mo2, 00Cr17Ni13Mo2N, 00Cr19Ni13Mo3, 00Cr19Ni13Mo3N, 0Cr18Ni11Nb;
Duplex stainless steel: 00Cr22Ni5Mo3N, 00Cr25Ni6Mo3Cu, 00Cr25Ni7Mo4N3.
Composite steel plate: suitable for containers and cargo tanks of chemical transport ships;
Z-directed steel: It is based on a certain grade of structural steel (referred to as parent grade steel) that has undergone special treatment (such as calcium treatment, vacuum degassing, argon stirring, etc.) and appropriate heat treatment.
Noteedit
1. Review of quality certification:
The steel plant must deliver the goods in accordance with the specifications agreed in the contract and provide the original quality certificate according to the requirements of the user. The certificate has the following contents:
(1) Specification requirements;
(2) Quality record number and certificate number;
(3) Furnace batch number and technical grade;
(4) Chemical composition and mechanical properties;
(5) Classification society approval certificate and surveyor's signature.
2. Physical inspection:
For the delivery of marine steel, the manufacturer’s logo should be on the physical object. Specifically:
(1) Classification society approved mark;
(2) Use paint to frame or paste the mark, including technical parameters such as: furnace batch number, standard grade, length and width dimensions, etc.;
(3) The appearance is smooth and smooth without defects.
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Shandong Chengming Steel Co.,Ltd
Our company supplies cold/hot-rolled stainless steel sheets,stainless steel bars ,stainless steel coil stainless steel pipes,lead plate,bearing steel,spring steel,steel plate pile,tank plate,alloy steel plate,weather resistant steel plate and wear resistant plate to many steel factories from at home and abroad, including Shanxi Taigang Iron& Steel CO,.LTD (TISCO) Zhangjiagang Pohang (ZPSS), Shanghai Krupp, Ningbo Baoxin and steel factories in Taiwan area, Mainland Chinese and foreign countries and regions.
Our annual capacity is 25, 000 tons. The Annual Domestic Sale is 20 million, Annual Exported Sale about 12 million dollars.Our products supplied to more than 20 countries, such as Indonesia, Spain, Japan, Korea, Vietnam, Italy, Israel,Australia, Malaysia, Brazil, Pakistan, U. A. E, Peru, India etc. Good quality has been getting more and more prise from buyers at home and abroad.Our long-term business lines are 304 .202, 201 .430.409L, 304L, 316L, 309S and 310S, Finish: 2B ,BA ,NO.1 NO.4 ,HL, NO.8 and so on . For the sheets and coils,the thickness ranging from 0.3mm to 100mm.For the bars,the diameter ranging from 1mm to 300mm.For the pipes ,we have seamless pipe and weld pipe. Meanwhile, our company is also engaged in the long-term supply of homemade & imported medium and thick plates,galvanized or carbon
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Stainless steel round steel belongs to the category of long products and bars. The so-called stainless steel round steel refers to a long product with a uniform circular cross section
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