Zhejiang Daye Flange Co., Ltd. is one of the leading manufacturers and suppliers of forged ss non-standard flange in China. With abundant experience, we are committed to providing high quality flanges made in China with competitive price. We warmly welcome you to buy durable forged ss non-standard flange in stock here from our factory. Also, quotation is available.
We maintain a dedicated R&D department and over 200 precision lathes. Our machining capacity covers sizes from DN10 to DN4000 (1/2"‑160"), supporting fully custom manufacturing according to customer drawings.
In terms of material solutions, forged ss non-standard flanges represent our core competitive product. Custom fabrication is also available for duplex steel and special alloy steel grades.
For service‑side material selection:
- Forged ss non-standard flanges are preferred for mildly corrosive media;
- Duplex steel non-standard flanges are recommended for services requiring superior chloride-ion corrosion resistance;
- Special alloy steel non-standard flanges are specified for extreme chemical-process operating conditions.
Parameters
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Standard: |
Customization |
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Certifications: |
PED/CE,ISO9001, ISO 45001, ISO14001 |
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Size: |
1/2"-160"/Dn10-Dn4000 |
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Rating: |
Class150-Class2500/Pn10-Pn400 |
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Material: |
Stainless steel: 304/304L, 316/316L, 321, 316Ti, 347/347H, 310S Super stainless steel: 254SMO/F44, 904L Duplex steel: F51/2205, F53/2507 Special alloy steel:Inconel(625, 600, 718, 750, 601), Hastelloy(276, C-22, C-4, C, X, B-2), Monel(400,500), Incoloy(800, 825, 020, 028,925),etc |
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Facing: |
RF/FF/RTJ/MFM/TG |
Product Advantage
- Function-oriented, tailored for special piping requirements.
Applications
Cryogenic piping (LNG / liquid nitrogen)
Extra wall‑thickening is required for cryogenic service conditions.
Transition for special‑shaped piping
Other specific piping requirements
Test
Mill certificate,100%PMI,Tensile Test,Hardness Test,Impact Test,IC Test,etc.it depends on the requirements.
Cerfitications
PED
PED
ISO 45001
ISO 9001
ISO 14001
Packaging
Outer Packaging:
Fumigated wooden crates/Fumigation-free plywood crates/Customized wooden crates
Inner Packaging:
Plastic flange protectors/Bubble wrap/Cardboard/Protective paper
Packaging can be customized to meet your specific requirements.
FAQ
Q: Is a drawing required for non‑standard flanges?
A: Drawings are mandatory for non-standard flanges. We strictly machine per customer-supplied drawings.
Q: What are common incomplete details on drawings?
A: Tolerances are frequently missing. Where tolerance information is not specified, manufacturing will follow general tolerances and actual lathe processing conditions.
Q: Why are forged ss non-standard flanges the most widely used?
A: Forged ss non-standard flanges feature better corrosion resistance than carbon steel, and offer significantly better cost‑performance compared with duplex steel and special alloy steel.
Q: What is the MOQ?
A: We don't have MOQ,but the more quantity,the price lower.
Q: What are your payment terms?
A: Perfer TT,L/C also acceptable.
Q: What surface finish do you provide?
A: 125-150AARH/,we can also customize accoding to your requirements.
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