GOST12821-80 CT20 Carbon Steel Pipe Flange Welding Neck
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Product Highlights
- GOST12821-80 Standard: Complies with Russian GOST standards for high-pressure and high-temperature applications.
- Customizable Coating: Surface coating can be customized to Black Painting, Yellow, or Zinc plating.
- Wide Pressure Range: Available in pressure ratings from Pn0.1 to 10 MPa for diverse industrial needs.
- 100% Quality Inspection: Every product undergoes 100% UT testing and passes EN10204 3.1 mill certificate requirements.
- OEM/ODM Support: Supports full customization from samples, designs, and minor adjustments for specific needs.
- Fast Lead Time: Stock items ship in 3 days; fresh production takes 15-20 days depending on quantity.
- Competitive Pricing: Large-scale purchase and standardized production ensure competitive market prices.
Product Attributes
- Customization
- Available
- Standard
- GOST
- Type
- Welding Flange
- Model NO.
- DN250
- Material
- Carbon Steel
- Structure
- Round
- Connection
- Welding
- Sealing Surface
- RF
- Manufacturing Way
- Forging
- Surface Coating
- Black Painting/Yellow/Zinc
- Pressure Rating
- Pn0.1/0.6/1.0/5/6/10 MPa
- Quality Guarantee
- 100% Ut Passed
- Mill's Certificate
- En10204 3.1
- Transport Package
- Wooden Case or Pallet
- Specification
- from dn15 to dn1600
- Trademark
- OEM/KM
- Origin
- China
Product Images of GOST12821-80 CT20 Carbon Steel Pipe Flange Welding Neck
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GOST12821-80 CT20 Carbon Steel Pipe Flange Welding Neck -
GOST12821-80 CT20 Carbon Steel Pipe Flange Welding Neck -
GOST12821-80 CT20 Carbon Steel Pipe Flange Welding Neck -
GOST12821-80 CT20 Carbon Steel Pipe Flange Welding Neck -
GOST12821-80 CT20 Carbon Steel Pipe Flange Welding Neck -
GOST12821-80 CT20 Carbon Steel Pipe Flange Welding Neck -
GOST12821-80 CT20 Carbon Steel Pipe Flange Welding Neck
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Product Description
Gost flange is a flange system that is from Russia. GOST, is a reference to a set of technical standards, that have been maintained by the Euro-Asian Council for Standardization, Metrology and Certification (EASC) as well as a regional standards organization operating under the patronage of the Commonwealth of Independent States (CIS).
The GOST12821-80 Welding neck Flanges have welded necks which hold the pipes in place during welding, widely used in high pressure, high temperature applications such as heat exchangers, power generation plants, super heaters, oil and gas and other various industrial applications.
Specification
| Popular Types | Socket Weld Ring Flange (SWRF), GOST Threaded Ring Flange, GOST Blind Ring Flange (BLRF), GOST Weld Neck Ring Flange (WNRF), GOST Slip-On Ring Flange (SORF), GOST Ring Type Joint Flange (RTJF), GOST Lap Joint Ring Flange (LJRF), GOST |
| Standards | Gost12821-80 |
| Materials | steel 3сп, 20, 25, 09Г2С, 10Г2, 15Х5М, 12Х18Н10Т,gost CT20 |
| Dimensions | From DN15 to DN1600 |
| Pressure Class | PN 0,1-0,6; 1,0-6,3; 10; 16; 20 MPa |
| Face Type | Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
| Coating | Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized |
| Test | Hydrostatic testing machine/ Ultrasonic flaw detector/ X-ray detector/ Direct-reading Spectrograph/ Magnetic particle detector |
| Mill's certificate | EN10204 3.1 |
| Marking | Buyer's or seller's logo/standard/material/dimension/heat no |
| Packing | In wooden case or pallet depends on weight |
| Lead time | 3 days for stock, 15-20days for fresh production depends on quantity |
| Payment term | 30% in advance, balance against packing list, commercial invoice, mill's test certificate and pictures of inspection. |
Company Profile
From 1989 to now, Kingmetal Steel focus on manufacturing and distributing pipeline products including piping, fitting, flange, valve and fastener in stainless, carbon, alloy and duplex steel.
Kingmetal has a factory to manufacture seamless stainless steel pipe from DN6 to DN600 and distribute seamless steel pipe and fitting from top brand manufacturers such as Baosteel, Hengsteel, Tiansteel and Pansteel etc.
All of products are strictly compliance with standard, 100% inspection passed including visual, dimension and PMI test before shipment.
Both our sales and logistic teams are over 10 years of experiences and training frequently.
After- sales service with high efficiency, if any products are short quantity/weight or damaged caused by manufacturing, design or transportation can be compensated.
Why choose us?
One-Stop Solution
We have thousands of total production experience, from raw materials to finished products.
Competitive Price
Large scale purchase, standardized production process and efficient management make our price competitive.
Quick Shipping
Years of export experience enable us to control the transportation time more accurately.
Quality Control
The standardized production process, comprehensive management system, professional testing equipment
Special material customization
We support the customization of various complex materials
OEM/ODM
We support any form of OEM/ODM customization requirements.
About the Supplier
This supplier has been audited by BV. Verify the report on the official BV website with ID "MIC-ASR241136". Items marked "
" are certified.
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Company Profile
Guangzhou Kingmetal Steel Industry Co., Ltd., is an Industry Group Company. It is a professional company in designing, producing and selling steel pipe, pipefittings and prefabricated house. We have our own big factories with modern machine line to make high quality products, which is mainly to be exported to oversea markets.
We have two factories. One is located in Wenzhou city, it was established in 1989. This factory is a leading seamless stainless steel pipe and pipefitting manufacturer in China. It occupied 114, 000 square meters, with fixed capital over 200 million and total amount 300 million. It owns 500 staffs including 80 advanced engineers. It owns perfect management system, vigorous technology supports, advanced production equipment and completed inspection equipment. The factory pay highly attention to enterprise foundation establishment, successfully was approved the authentication of PED and AD by TUV from German company, and the national special equipment license. Our products greatly provide for petroleum chemical, metallurgy, pharmaceutical machinery, paper making, food, shipbuilding, environmental protection, boiler, heater exchanger, pressure container, condensation, water, electricity and so on. The mainly grades we can provide are 304, 304L, 316, 316L, 321, 321H, 317L, 310S, 347H, 31803 etc.
Another factory is located in Guangzhou city, it was established in 2002. This factory is one of the largest prefab house corporation in southern China. It occupied 30, 000 square meters, with fixed capital over 40 million and total amount 100 million. It owns 200 staffs. Annual out put is more than 2 million square meter, and there have a stock of about 50 thousand square meter. These products include slope top prefab house, flat top prefab house, non-standard steel structure (warehouse, industrial shed), container house, mobile fence wall, sentry box etc. Our goods not only sold to domestic market but also extended to Southeast Asia, Middle East, Europe, Australia, Africa, and South America etc.
At the same time, we also are the agency of Bao Steel, Hengyang, Tianjin, Anshan, Pangang etc. Big group steel company. We offer the seamless carbon, welded carbon steel pipe, GI pipe, and special pipe. Fittings elbow, tee, reducer, cap, lap joint, flanges etc...This is better for our customer to buy the different products from China, while they are saving their time, but they can enjoy in our best serves.
We have advanced technology of management, we win the trust because of our good quality.
We have clannish conscientious and passionate salesman, we gladden and steady the customers with our best service.
We are pure-hearted and awaiting for your kind attention to our company.
About Our Factory & Business Background
- Address
- Room 703, Jinbi Lingxiu International Center, No. 3 North Junya Street, Guangzhou, China
-
Terms of Payment
- LC, T/T, D/P, Western Union, Small-amount payment
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR, EXW
-
Average Lead Time
-
Peak Season Lead Time: one month, 1-3 months
Off Season Lead Time: within 15 workdays, one month -
Nearest Port
- Guangzhou Port, Shenzhen Port
-
Supply Chain Partners
- 200
Our Production Capability & Technical Expertise
- Main Products
- Steel Pipes, Pipes Fittings, Socket Fittings, Flange, Angle Bar, C Chanel, Steel Coils, Steel Plate, Valves, Grooved Fittings
-
Customization Options
- Customization from Samples, Customization from Designs, Full Customization, Minor Customization, Flexible customization
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
-
R&D Engineers
- 3 people
Our Industry Experience & Global Business Record
-
Export Year
- 13 years
-
Main Markets
- North America, South America, Europe, Southeast Asia/ Mideast, Africa
-
Number of Foreign Trading Staff
- 10
-
Overseas Agent/Branch
- No
-
New Products Launched in Last year
- No
FAQ
- What is the standard for this flange?
- The flange complies with the GOST12821-80 standard, maintained by the Euro-Asian Council for Standardization.
- What are the pressure ratings?
- Pressure ratings range from Pn0.1/0.6/1.0/5/6/10 MPa, covering PN 0.1-0.6, 1.0-6.3, 10, 16, and 20 MPa.
- Can the surface coating be customized?
- Yes, surface coating can be customized to Black Painting, Yellow, or Zinc plating based on customer requirements.
- What is the lead time for production?
- Stock items are shipped within 3 days. Fresh production typically takes 15-20 days depending on the quantity ordered.
- What payment terms are accepted?
- Payment terms are 30% in advance, with the balance paid against the packing list, commercial invoice, and mill's test certificate.
- Is OEM/ODM service available?
- Yes, we support any form of OEM/ODM customization requirements, including customization from samples and designs.
- What quality guarantees are provided?
- We provide 100% UT passed quality guarantee and EN10204 3.1 mill's certificate for all products.
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