China Factory Suppliers of Seven Corner Forging Petroleum Flange – Precision Engineered for Industry Use
Product Introduction
- Manufacturing standard: GB3077-2015;
- Pressure rating: 150MPA;
- Product material: 31603;
- Production process: forging, roughing, heat treatment, finishing, boring and washing, tapping.
- Product features: Strong acid and alkali resistance, high temperature resistance, long service life, smooth surface, beautiful appearance, high pressure resistance;
- Scope of application: Chemical and petroleum industries.
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Precision-forged Heptagonal Component for Critical Oil & Gas Applications
This advanced heptagonal forging represents a proprietary prototype co-developed with CNPC (China National Petroleum Corporation) for high-stakes petroleum industry applications. Manufactured from certified 31603 stainless steel via single-billet integral forging, the component achieves exceptional structural integrity and corrosion resistance. Our precision manufacturing protocol includes: rough machining, solution annealing, CNC precision finishing, deep-hole boring, and API-spec thread tapping. Engineered to withstand extreme downhole environments, it delivers unmatched dimensional accuracy (ISO 2768-m) and material homogeneity for critical sealing and load-bearing functions in next-generation drilling systems.
Why Choose Us?
✅ 18+ Years Manufacturing Expertise
✅ Direct Factory Pricing
✅ Technical Support for Installation & Selection
✅ Compliance with API, CE, and ASME Standards
We DHDZ manufacture forged flanges which meet international quality standard: DIN, EN1092-1, BS4504, ANSI, API, MSS, AWWA, UNI, JIS, SANS, GOST, NFE, ISO, AS, etc. We DHDZ manufacture 75 lbs, 150lbs, 300lbs, 600lbs, 900lbs, 1500lbs, 2500lbs, PN6, PN10, PN25, PN40, PN63, PN64, PN100, GOST 12820 and GOST 12821, PN0.6 MPA, PN1.0 MPA, PN1.6 MPA, PN2.5MPA PN4.0MPA, SANS1123 or SABS 1123, 600kpa, 1000kpa, 1600kpa, 2500kpa, 4000kpa flange ratings as per purchaser's specification.
Product Display
Frequently Asked Questions (FAQ)
Q What manufacturing standards and materials are used for the heptagonal component?
The component is manufactured according to the GB3077-2015 standard and is made from certified 31603 stainless steel to ensure high durability and corrosion resistance.
Q What is the pressure rating of this precision-forged component?
This specific heptagonal forging is engineered with a high pressure rating of 150MPA, making it suitable for high-stakes oil and gas applications.
Q What production processes does the component undergo?
Our comprehensive manufacturing protocol includes single-billet integral forging, roughing, heat treatment (solution annealing), CNC precision finishing, deep-hole boring and washing, and API-spec thread tapping.
Q What are the primary features and applications of this product?
It features strong acid and alkali resistance, high temperature resistance, long service life, a smooth surface, and high pressure resistance. It is designed for critical sealing and load-bearing functions in next-generation drilling systems within the chemical and petroleum industries.
Q Which international flange standards can DHDZ comply with?
DHDZ manufactures forged flanges complying with various international quality standards including DIN, EN1092-1, BS4504, ANSI, API, MSS, AWWA, UNI, JIS, SANS, GOST, NFE, ISO, and AS.
Q What pressure class ratings can DHDZ supply?
We can manufacture flanges with ratings of 75 lbs, 150lbs, 300lbs, 600lbs, 900lbs, 1500lbs, 2500lbs, PN6, PN10, PN25, PN40, PN63, PN64, PN100, GOST ratings, and up to 4000kpa depending on the purchaser's specifications.