| Sign In | Join Free | My entremaqueros.com | 
 | 
| Categories | Octagonal Ring Joint Gasket | 
|---|---|
| Brand Name: | Wenzhou Jingwei Seal Technology Co., Ltd. | 
| Model Number: | oct RTJ gaskets | 
| Certification: | ISO9001 | 
| Place of Origin: | WENZHOU CHINA | 
| MOQ: | 10 | 
| Price: | Negotiable | 
| Payment Terms: | L/C, T/T | 
| Supply Ability: | 100000pcs/month | 
| Delivery Time: | 7 work days | 
| Packaging Details: | Bulk packaged or Customize | 
| stainless steel: | seals ring | 
| api: | gasket | 
| wellhead: | ring joint gasket | 
We Manufacture and supply high quality Ring joint Gaskets for high pressure and temperature service conditions. These gaskets are widely used in Refineries, Petrochemical Industries, Oil drilling well head equipments, Pressure Vessels, valves, Christmas Tree valves and Pipe lines. Ring joints Gasket are strictly manufactured as per API-6A and ASME B16.20 specification.
We manufacture from R 11 through R 105 to suit the following flange specifications:
The Octagonal cross section Ring Joint is the development oval cross section and offers a better sealing performance. Only oval cross section gaskets can be used when the flange grooves are with the round bottom. Both Octagonal and oval cross sectioned gaskets can be used when the grooves of the flange are having a flat bottom.

we supplies ring joint gaskets (RTJ Gasket) with the hardness numbers as follows:
| GASKET MATERIALS | BRINELL HARDNESS NUMBER (max) | ROCKWELL HARDNESS NUMBER (max) | IDENTIFICATION | 
|---|---|---|---|
| Soft iron | 90 | 56 | D | 
| Low carbon steel | 120 | 68 | S | 
| 4-6% Chrome 1/2% molybdenum | 130 | 72 | F5 | 
| 304 Stainless Steel | 160 | 83 | S304 | 
| 316 Stainless Steel | 160 | 83 | S316 | 
| 347 Stainless Steel | 160 | 83 | S347 | 
| Common Materials | |||
| Material | HB Hardness | Temperature Limitations | Identification | 
| Soft Iron | 90 | -60 to +400 °C | D | 
| Low carbon steel | 120 | -40 to +500°C | S | 
| 4%-6% Cr ½% Mo:F5 | 130 | -125 to +500°C | F5 | 
| Stainless steel 304/304L | 160 | -250 to +650°C | S304 or 304L | 
| Stainless steel 316/316L | 160 | -196 to +800°C | S316 or 316L | 
| Stainless steel 321 | 160 | -250 to +870°C | S321 | 
| Stainless steel 347 | 160 | -250 to +870°C | S347 | 
| Stainless steel 410 | 170 | -20 to +500°C | S410 | 
| Inconel 625 | – | 1000°C | 625 | 
| Incoloy 825 | – | 1000°C | 825 | 
| Hastelloy C-276 | – | 1000°C | C-276 | 
| Duplex | – | 800°C | S31803 | 
| Titanium | – | 540°C | TI | 
|   | 
 stainless steel octagonal ring type joint gasket
                                                                                    
                        
                        
                        
                                                            stainless steel octagonal ring type joint gasket
                                                    
                        
                     wellhead RTJ GASKET
                                                                                    
                        
                        
                        
                                                            wellhead RTJ GASKET
                                                    
                        
                     oct ring joint gasket seals ring gasket
                                                                                    
                        
                        
                        
                                                            oct ring joint gasket seals ring gasket
                                                    
                        
                     Octagonal RTJ Gasket  gasket high temperature soft iron gasket ring
                                                                                    
                        
                        
                        
                                                            Octagonal RTJ Gasket  gasket high temperature soft iron gasket ring
                                                    
                        
                     ASME B16.20 BX160 Octagonal Ring Gasket
                                                                                    
                        
                        
                        
                                                            ASME B16.20 BX160 Octagonal Ring Gasket
                                                    
                        
                     ASME B16.20 316SS Octagonal Ring Joint Gasket
                                                                                    
                        
                        
                        
                                                            ASME B16.20 316SS Octagonal Ring Joint Gasket
                                                    
                        
                     ISO9001 Octagonal R23 Stainless Steel Seal
                                                                                    
                        
                        
                        
                                                            ISO9001 Octagonal R23 Stainless Steel Seal
                                                    
                        
                     ASME B16.20 347SS Octagonal Ring Joint Gasket
                                                                                    
                        
                        
                        
                                                            ASME B16.20 347SS Octagonal Ring Joint Gasket
                                                    
                        
                     API 6A 304SS Octagonal Ring Joint Gasket
                                                                                    
                        
                        
                        
                                                            API 6A 304SS Octagonal Ring Joint Gasket
                                                    
                        
                     Carbon Steel Octagonal Ring Joint Gasket
                                                                                    
                        
                        
                        
                                                            Carbon Steel Octagonal Ring Joint Gasket