China Suppliers Factory Seven Corner Forging Petroleum Flange - High-Quality Integral Forging for Industry Use
Product Introduction
GB3077-2015
150MPA
31603
Forging, roughing, heat treatment, finishing, boring and washing, tapping
Strong acid and alkali resistance, high temperature resistance, long service life, smooth surface, beautiful appearance, high pressure resistance
Chemical and petroleum industries
Video
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?
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 is the manufacturing standard and material of the heptagonal component?
A: The heptagonal component is manufactured according to the GB3077-2015 standard and is made of certified 31603 stainless steel to ensure high corrosion resistance and structural strength.
Q: What pressure ratings can this forged component withstand?
A: This specific precision-forged component features a high-pressure rating of 150MPA, engineered for extreme downhole drilling environments.
Q: What production processes are involved in the manufacturing of this prototype?
A: The complete manufacturing protocol involves single-billet integral forging, roughing, solution annealing, heat treatment, CNC precision finishing, deep-hole boring, washing, and API-spec thread tapping.
Q: Which international standards do DHDZ forged flanges comply with?
A: We manufacture forged flanges that comply with major international quality standards, including DIN, EN1092-1, BS4504, ANSI, API, MSS, AWWA, UNI, JIS, SANS, GOST, NFE, ISO, and AS.
Q: What flange pressure classes and ratings can be customized?
A: We offer a wide range of ratings, including 75 lbs to 2500 lbs, PN6 to PN100, GOST 12820 and GOST 12821, PN0.6 MPA to PN4.0MPA, and SANS1123/SABS 1123 (from 600kpa up to 4000kpa) according to client specifications.