Company Profile
We design new steel warehouse & workshop structures and modify exsiting structures (and turnkey projects) for any application to the requirements of our customer. Woking closly with Architects and Engineers we provide you with the best possible advice for a full and comprehensive service from design to completion of your steel building project.
No matter what type pf steel buildings you are looking for-large, small or anything in between-we can offer you a host of benefits. And we'll also ensure that you are satisfied with your choice.
Competitive pricing, efficiency, quality workmanship and on-time construction are basic requirements for the success of steel building projects.
Economy is gained not only by savings in steel mass through careful design, but also by the adoption of simple, efficient construction details that can be processed in the workshop at minium cost.
1) Roof and Wall: Corrugated steel sheet/sandwich panel
2) Supporting: Section steels
3) Window and door: PVC windows, Rolling doors
4) Mutli-span, custom designed, efficient scheduling, delivery
5) Top quality at great prices with personalized and most professional service
Our service:
We can offer one stop service for the customer from designing, manufacturing, to testing, installation. All the steel structure building can be fabricated customized according to customers' demand and will be professional advice according to our experience.
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| Type of Building |
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| Please state type of building, ie: workshop, warehouse, hall, hangar, farm, roof structure or other construction |
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a(width) |
b(length) |
h1(wall height) |
h2(total height) |
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| Construction Site |
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| Roofing and Walls |
(1) sandwich panel
(2) profile steel sheets
(3) steel sheet+glass wool blanket
(4) no walls-only roof with structures |
| Contact Name |
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| Company Name |
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| Phone Number |
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| Email |
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| Additional info |
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| Send us sketches, drawings or the project, if you have |
FAQ
1. What kind of company you are?
We are steel structure building Manufacturer located in Qingdao China, We were gaining good reputation among our customers for our professional, warm and thoughtful service. Because we know that a long terms business based on the quality control, price, packing, delivery time etc.
2. Does your company is a factory or trade company?
We are factory, so you will enjoy the best price and competitive price. Our factory covers an area of 150,000 square meters.
3. Whats the quality assurance you provided and how do you control quality ?
Established a procedure to check products at all stages of the manufacturing process - raw materials, in process materials, validated or tested materials, finished goods, etc.
4. Can you offer designing service?
Yes, we have more than 100 design engineers. We could design full solution drawings as per your requirments. They use software: Auto CAD,PKPM, MTS, 3D3S, Tarch, Tekla Structures(X steel)V12.0.etc.
5. Do you offer guiding installation on site overseas?
Yes, we can provide the service of installation, supervision and training by extra. We can send our professional technical engineer to surpervise installation on site overseas. Besides, We also have our own abroad guiding installation team consisting of more than 30 people.
Welcome to send your inquiry on blank as below
Process, fabrication and quality control standard on welding groove/beveling of steel structure
1. Purpose
To ensure the welding quality, meeting up the technical requirements of welded members and improve the standardization of our fabrication, we specially formulate this regulation.
2. Application scope
This manual apply for the design, fabricate and inspection of groove joint in terms of manual arc welding, CO2 arch welding, mixed gas arch welding, submerged arc welding and electroslag welding.
3. Design of welding groove
3.1 Key points on design welding groove:
In order to obtain quality groove, it is necessary to choose appropriate form of groove. The option of groove mainly depends on the thickness of base metal, welding method and craftsmanship requirements.The followings are the factors we need to consider:
- minimize the amount of filler metal
- easy for beveling
- in convenience for welding operation and slag removal
- After welding stress and deformation should be as small as possible
3.2 Groove direction:
We will consider the following factors for the groove direction:
A)in favor of welding process and removing slag and leave enough space for welding process on the fusion face
B)minimize the times of flip-flop during welding
C)way of fit-up in actual welding
3.3. Regulation on groove direction of members:
3.3.1 Butt welding on H section rafter/column (when CJP-complete joint penetration and single side fusion is required)
1) When there is no welding backing, the groove orientation on flange plates should be same and falls on the direction in favor of welding on web plats(same rules apply for the PJP situation). Please refer to illustration 1
2)When there is welding backing, we require the groove direction being outward for the flange plates(opposite direction for web plates) and still falls on the direction in favor of welding on web plates. Please refer to illustration 2
3)Butt-welding on construction site:we require all the grooves should be bevelled on the upper rafter/column when it comes to bolt connection for web plates(see illustration 3). For the scenario of welding on web plates, please refer to the illustration 4.
3.3.2 Box column(groove on itself).See illustration 5
4. Welding groove form
4.1. Mark on form and size of welding joint groove:
Example: Shielded metal arch welding, complete joint penetration, butt welding, I shape groove, welding backing and single side weld would be marked MC-BI-BS1
4.2. For the mark of welding method and penetration type, please see the following chart 1.
Chart 1 Mark on welding method and penetration type
| Mark |
Welding method |
Penetration type |
| MC |
Shielded metal arch welding |
CJP-complete joint penetration |
| MP |
PJP-partial joint penetration |
| GC |
Shielded arch welding
Self-shielded arc welding |
CJP-complete joint penetration |
| GP |
PJP-partial joint penetration |
| SC |
Submerged arc welding |
CJP-complete joint penetration |
| SP |
PJP-partial joint penetration |
| SL |
Electroslag welding |
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4.3. For the mark of single, double side welding and backing material type, please see the following chart 2
Chart 2 Single/double side welding and backing material type mark
| Backing material type |
Single/double side welding |
| Mark |
Material |
Mark |
Single/double side welding |
| BS |
Metal backing |
1 |
Single side welding |
| BF |
Other backing |
2 |
Double side welding |
4.4. Mark on each part size of groove, see chart 3.
Chart 3 Size mark on groove
| Mark |
Size of each part on groove |
| t |
Thickness of welding plate(mm) |
| b |
Groove root gap or gap between two members(mm) |
| h |
Groove depth(mm) |
| p |
Groove roof face(mm) |
| α |
Groove angle(º) |
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