Sep-09-2021
The bridge formwork is made up of three parts: the bottom mold, the outer mold, and the inner mold: the first is the bottom mold. The box girder can be poured with more than 530 tons of concrete at a time. In addition, the girder bridge template weighs mo
Sep-08-2021
As we all know, bridge steel formwork manufacturers need to pay attention to its thickness during the manufacturing process. This factor directly affects the subsequent construction and use. Therefore, it is necessary to pay attention to the thickness con
Sep-06-2021
We supply elliptical head, butterfly head, large diameter head, spherical head, pressure vessel head, boiler head, etc. with complete specifications and models and quality assurance.Maintenance steps of elliptical head:
1. The chloride ion content of wat
Sep-03-2021
Perforated metal plate refers to punching holes of different shapes on the same material to meet different needs. It can be used for environmental protection and noise control barriers in traffic and municipal facilities such as expressways, railways and
Sep-02-2021
The main factors affecting tubesheet corrosion are:
(1) Medium composition and concentration: the influence of concentration is different. For example, in hydrochloric acid, the greater the concentration, the more serious the corrosion. Carbon steel and
Sep-01-2021
The flat steel for automobile girder (longitudinal beam and cross beam) is usually low alloy hot rolled steel with thickness of 2.5-12.0mm. The shape of automobile girder is complex, which requires good stamping performance in addition to high strength an
Aug-31-2021
The single tank volume of oil storage tank is often very large, and the product quality requirements are also very high. In particular, the shell plates of large oil storage tanks are prefabricated and processed in the manufacturing plant, including arc r
Aug-30-2021
1. The same series of NP550 steel include NP370, NP450, NP500, etc.2. NP550 steel plate is based on the rare high-hardness and ultra-high-hardness special protective steel in China, and has developed a thin steel plate with high anti-elasticity, high stre
Aug-27-2021
1. Q420qDNH atmospheric corrosion resistant bridge steel plate chemical composition (mass fraction) /%: Grade C Si Mn Nb V Ti Cr Ni Cu N Al Mo Q420qNH ≤0.11 0.15-0.5 1.1-1.5 0.01-0.1 0.01-0.1 0.006-0.0
Aug-26-2021
1. 08Ni3DR steel plate implementation specification: GB/T 35312. 08Ni3DR steel description: 08: nominal carbon content is 0.08%, practical content does not exceed 0.10%; Ni3: Ni (nickel) nominal content is 3%, practical content is 3.25%-3.70% , DR means f
Aug-25-2021
1. Q355ND-Z35 steel plate chemical composition:
Carbon C: not more than 0.20
Silicon Si: not more than 0.5
Mn: 0.90-1.65
Phosphorus P: 0.030
Sulfur S: 0.030
Nb: 0.005-0.05
Vanadium V: 0.01-0.12
Titanium Ti: 0.006-0.05
Cr: not more than 0.30
Nick
Aug-24-2021
S460N-Z35 steel plate is a European standard steel with high strength, especially in the normalizing or normalizing and tempering state, it has higher comprehensive mechanical properties. S460N-Z35 performance specification: EN10025-3. Mechanical properti
Aug-24-2021
1. S355J2+N-Z15 steel plate is a European standard low-alloy high-strength steel plate, in which S refers to structural steel, and 355 refers to the yield strength at room temperature not less than 355Mpa. J2 requires -20℃ impact. As for the +N at the bac
Aug-20-2021
1. Steel plates for nuclear power plants include: Q205HD, Q230HD, Q250HD, Q275HD, Q345HD, Q420HD, 20MnHR, 16MnHR, 20HR, 16MnD5, 18MnD5, 20MnD5 and other vessel steel plates for nuclear power, low alloy high strength steel plates P265GH, P295GH, SA516gr60,
Aug-18-2021
1. In terms of the material Q420GJD, it is obvious that it is high-grade steel, executing the Chinese national standard GB/T 19879.2. Q420GJD construction steel heat treatment process includes: hot rolling, normalizing, normalizing and tempering, TMCP, TM
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