The production of hydrogen 15CrMoR steel

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Hydrogen 15CrMoR (H) containing WYJ testing, heat treatment, is more than or equal to -10 DEG C impact work, all the fixed ruler, all properties, electro slag, big ingot      

Hydrogen 15CrMoR, 15CrMoR (H) technical conditions of steel plate production

1 the use of range from Wuyang steel quality management department

The technical conditions applicable to the medium temperature pressure vesselpressure components with less than 150mm thickness of the steel plate.

2 normative references GB713-2008

In 3 dimensions, shape, weight and permissible deviations

3.1 steel plate size, shape and tolerances shall comply with the provisions of GB/T709. 3.2 thickness deviation according to B class or the C GB/T709 class in the contract execution, Naka A.

3.3 plate theoretical weight delivery, theoretical weight the maximum thickness ofsteel plate thickness is permitted and the minimum thickness of the arithmetic mean value. The density of steel 7.85g/ cm 3

The chemical composition of steel requirements, shall be in accordance with the provisions of table 1. Table 1 chemical composition of Wt% components

C Si Mn P  Analysis of the S Max Cr Mo melting

0.12~ ~ ~ ~ ~ ~ 0.18 0.15 0.40 0.40 0.70 0.010   0.010

Analysis of 0.8 ~ 1.2 0.45 ~ 0.60 of the finished product

0.10~ ~ 0.20    0.13 ~ ~ 0.43    0.37 ~ ~ 0.73   0.012   0.010    0.75 ~ ~ 1.25    0.43 ~ ~ 0.62

Analysis of Ni Cu Sb* Sn* component of As* Max [H]* melting

Analysis of 0.20 and 0.20 is less than or equal to 0.003 is less than or equal to 0.015 and 0.016 2ppm products

0.20   0.20  0.003   0.015   0.016

Less than or equal to 2ppm

Note: (1) melting analysis should be per furnace (tank), sampling, analysis of products (including the X coefficient) according to Zhang sample delivery. (2) with "*" the element record analysis results. [H] under the premise of ensuring meltinganalysis, but not for the product analysis. Methods: 4.2 smelting by electric furnace+ refining outside the furnace, and through smelting process vacuum degassing.The plates shall be fine grain steel. 4.3 delivery state: steel plate to normalizing + tempering (allows accelerated cooling) delivery. 4.4 mechanical properties, shallcomply with the provisions of table 2. Table 2 project numerical unit room temperature tensile Rm

Thickness is less than or equal to 100mm 450~~590 MPa

>100~150mm 440~~580 room temperature tensile Rp0.2 less than 100mm thickness greater than 295 MPa

>100~150mm

255

Methods: using electric furnace smelting furnace refining, and through + vacuum degassing of the smelting process. The plates shall be fine grain steel. 4.3 delivery state: steel plate to normalizing + tempering (allows accelerated cooling) delivery.


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Q:Is the steel plate 1.5 meters wide and 2 meters wide at the same price? .
The price of the steel plate is calculated by ton. There are many ways to calculate the price. The whole plate is a kind of price. If you need a specific size, if the cutting angle can not be used, it will be calculated accordingly.
Q:What is the electromagnetic steel plate in the generator?
The use of silicon steel sheet generator is designed to: 1) as magnetic pole and magnetic path with smaller excitation current can get larger magnetic field; 2) adding silicon steel material, increases the permeability and resistance to reduce eddy current losses in the steel sheet; 3) the steel sheet made of a film, increase the path of vortex flow, reduce the eddy current loss.
Q:What does galvanized steel sheet "-PPGI" mean?
Advantages: it has both mechanical strength and formability of the steel plate, as well as good decoration and corrosion resistance of organic materials. Coating adhesion is strong, can maintain colour and lustre for a long time novel.
Q:What do you pay attention to?
In the rapid development of the automotive industry, in order to reduce the weight of the car itself, a variety of lightweight base material is more used by the car, such as plastic products, glass steel and so on. Due to the organizational structure of various materials with different degree of hardness, such as paint layer compared with the plastic to some hard, so it is the same as sandpaper polished plastic will be wiped out some results in the emergence of many, uneven phenomenon, due to very shallow depression layer is in a flat surface, so the putty adhesion is poor. And dry time is slow, difficult grinding. In this case, only the two fill method is used to solve the problem.
Q:What is Larson steel sheet pile?"
The advantages of Larson steel sheet piles1. high quality (high strength, light, good water resistance);2., simple construction, shorten the period of time, good durability, life of more than 50 years;3. construction cost is cheap, interchangeability is good, can be reused 58 times;4., the construction has remarkable environmental protection effect, greatly reduces the amount of soil sampling and the use of concrete, and effectively protects the land resources;5., the timeliness of disaster relief is stronger, such as flood control, landslides, subsidence, quicksand and so on;6. Deal with and solve a series of problems in the process of excavation;7, for the construction task, it can reduce the space requirements;8, the use of steel sheet pile provides the necessary safety, and timeliness;9, the use of steel piles can be free from weather conditions;10, the use of steel sheet pile material can simplify the complexity of inspection materials and system materials;
Q:What's the density of the 0.5 color steel plate?
We often see the color steel plate refers to the processing of sheet metal, the thickness of about 50~100mm, it is composed of the middle filler and two sides of color steel plate. Among them, the color plate thickness of 0.4mm, 0.5mm, 0.6mm and other different thickness, the middle layer can be polyurethane, rock wool or foam plastic. Because of the special profiles, the construction of the building with colored steel plate is very fast (such as the Xiaotangshan hospital in SARS), but the strength is low. The substrate of the color coated steel plate is a cold rolled substrate, a hot-dip galvanized substrate and an electro galvanized substrate. The coating types can be divided into polyester, silicon modified polyester, vinylidene fluoride and two plastic sol. The surface state of color coated steel sheet can be divided into coated plate, embossed plate and printed board.
Q:What are the reasons for the steel mesh on both sides of the back pouring belt?
1, to solve the differential settlement of the high-rise building and the podium and set up the construction of the pouring belt is called the settlement post pouring belt.2, in order to prevent concrete condensation, shrinkage, cracking and set up after the construction zone is called "after pouring" belt.
Q:How can steel plates with a thickness of 1MM be welded?
The seam is also called the wheel welding equipment for the production, mainly uses fuel exhaust pipe seal. The principle is similar to that of spot welding. The difference is that the output current is uninterrupted.
Q:Why should the back of the steel sheet pile cofferdam be pumped after the construction of the pile cap?
According to the construction schedule or on-site organization of steel sheet pile of entry, to ensure the construction of steel sheet pile to meet the schedule requirements, stacking position of steel sheet pile according to the construction requirements and site conditions along the support line dispersed stacked, stacked together to avoid concentration caused by the two handling.
Q:Is PCM steel better than galvanized steel?
In order to obtain the bending and curing enough; and can obtain good washing resistance, pollution resistance and high hardness. The pencil on the back with modified epoxy paint at the back, one can obtain good corrosion resistance, also can obtain excellent adhesion foaming.PCM color steel plate can not only meet the household appliances use environment and the requirements of the service life, but also has good processability, can meet the high speed and precision machining equipment requirements, can be used for bulk refrigerator door, side plate, back plate, box washing machine, water heater

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