Ms. Bai

Where can I find the wholesale price of the Hubei steel manufacturer and the normalizing and tempering of the steel factory? Where are the prices low? What welding rod to use? Where can it be cut? What material is it?
1. Scope of application Bai Xue
This technical condition is suitable for thickness-steel plates used in acidic environments
. In order to meet the different requirements of users and facilitate production management, the requirements for steel types are divided into There are three levels: I, II and III.
2. Grade description
- Refers to the steel grade r. The corrosion test is only for hydrogen-induced cracking resistance. The components require melting analysis and finished product analysis.
Size, shape, weight and allowable deviation
. The size, shape, weight and allowable deviation of the steel plate should comply with the regulations.
.The thickness deviation shall be specified in the contract according to the class or class execution.
.Steel plates are delivered according to theoretical weight. The thickness adopted for theoretical weight calculation is the arithmetic mean of the maximum and minimum thickness allowed for the steel plate. The density of steel is ./.
3
Technical requirements
:
.Chemical composition
The chemical composition of steel should comply with the provisions of the table.
Steel type
Grade
=>
Melting analysis
=>
=>
=>
=>
=>
=>
Finished product analysis
Table
Note: Values are for reference only and are not used as acceptance conditions. Contents can be replaced by finished product analysis values instead of smelting analysis values
Carbon equivalent calculation The formula is as follows: +/+(+)/+(++)/
In order to improve the performance of the steel plate, some micro-alloying elements can be added.
Table
Grade
Ingredient
=> Ⅰ
Smelting
Finished product
=> Ⅱ
Smelting
Finished product< br/> => Ⅲ
Smelting
Finished product
. Smelting method
The smelting process adopts electric furnace + outside refining method and should be essentially fine-grained steel whose actual grain size is The granularity is grade 1 or above.
.Delivery status:
Normalizing.
.Sample status:
All steel plates should be subjected to simulated post-weld heat treatment on the test specimens. Recommended simulated post-weld heat treatment temperature: ℃ Holding time: hourly temperature ℃ or above, the furnace heating and cooling rate ℃/if with The recommended heat treatment regime does not match the specific simulated post-weld heat treatment regime specified in the contract.
.Mechanical properties
..The mechanical properties of steel plate specimens simulating the post-weld heat treatment state should comply with the requirements in the table below.