GNEE hot-selling products
ASTM B861 Titanium Alloy Seamless Pipe
Ti-6A1-4V Medical Titanium Alloy Rod
GR7 GR9 Precision Titanium Alloy
Titanium Grade 1 Strip Coil
In industrial production, titanium flange forgings (including forged-rolled pieces), as critical connecting components, directly impact the safety and stable operation of the entire equipment. Therefore, the manufacturing process and technical requirements for titanium flange forgings must be strictly controlled. Below is a detailed explanation of the technical requirements and manufacturing standards for titanium flange forgings:
Forging (Including Forged-Rolled Pieces) Grades and Material Requirements
Forging Grades: The grades and technical requirements for forgings must strictly comply with the relevant provisions of the JB4726-4728 standards.
• Carbon steel and austenitic stainless steel forgings with a nominal pressure (PN) ranging from 0.25 MPa to 1.0 MPa may adopt Grade I forgings.
• Forgings with a nominal pressure (PN) ranging from 1.6 MPa to 6.3 MPa must meet the requirements of Grade II or higher forgings, unless otherwise specified.
• Forgings for flanges with a nominal pressure (PN) ≥ 10.0 MPa, chromium-molybdenum steel forgings with a nominal pressure (PN) > 4.0 MPa, and ferritic steel forgings with a nominal pressure (PN) > 1.6 MPa and operating temperature ≤ -20°C must meet the requirements of Grade III forgings.
Material Requirements: Forgings must be made of high-quality titanium materials that comply with relevant standards, ensuring that the chemical composition, mechanical properties, and microstructure meet the design requirements.
Flange Manufacturing Process and Quality Requirements
Manufacturing Process: Welding neck, slip-on, socket weld, and threaded flanges are generally manufactured using forgings or forged-rolled processes. If steel plates or section steel must be used for special reasons, the following requirements must be strictly adhered to:
• Steel plates must undergo ultrasonic testing to ensure no lamination defects.
• Steel plates must be cut into strips along the rolling direction and formed into rings by bending and welding. The cylindrical surface of the ring must be formed from the surface of the steel material. It is strictly prohibited to directly machine steel plates into welding neck flanges.
• The butt welds of the rings must be full-penetration welds to ensure weld strength and sealing.
• The butt welds of the rings must undergo post-weld heat treatment and be subjected to 100% radiographic or ultrasonic testing. Radiographic testing must meet the Grade II requirements of the JB4730 standard, while ultrasonic testing must meet the Grade I requirements of the JB4730 standard.
Neck Taper: The external taper of the neck for slip-on, socket weld, and threaded flanges must be strictly controlled to no more than 7° to ensure sealing performance and installation convenience.
Other Special Requirements
Surface Quality: The surface of forgings must be smooth, free from cracks, folds, inclusions, and other defects. For forgings requiring surface treatment, processes such as sandblasting, pickling, and passivation must be performed in accordance with relevant standards to improve corrosion resistance.
Dimensional Accuracy: The dimensional accuracy of forgings must comply with the requirements of the design drawings and relevant standards. Key dimensions must undergo strict inspection and measurement to ensure they meet usage requirements.
Marking and Packaging: Forgings must be marked in accordance with regulations, including information such as material, specifications, grade, and production date. Additionally, forgings must be properly packaged to prevent damage during transportation and storage.
In summary, the manufacturing process and technical requirements for titanium flange forgings are highly stringent and must be strictly followed in accordance with relevant standards and regulations. Only in this way can the quality and performance of titanium flange forgings meet usage requirements, providing a strong guarantee for the stable operation of equipment.
Titanium products provided by GNEE
CNC machined parts
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Machining Equipment |
10 CNC Tapping Center, 260CNC Lathes,200 auto lathe,2 MAZAK five axis CNC, etc. We increase about 10 lathes every month |
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Processing |
Turning, Milling, Drilling, Tapping, Knurling,Wire EDM ,Grinding,Engraving,Knurling,etc. |
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Tolerance |
+/-0.005mm |
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Material Workable |
Copper,Steel, Aluminum, Brass, Stainless Steel, Titanium, Plastics (PEEK,ABS, Teflon,Acrylic , Delrin, PP, PMMA, PC, POM, |
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Surface Treatment |
Nickel Plating, Anodizing, Chorme Plating, Brushing, Polishing, Blacken, Powder coating, Sandblasting, de-buring, |
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Drawing Format |
JPEG, PDF, DWG, DXF, IGS, STEP, CAD |
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MOQ |
No MOQ Required, 1 PC is fine for us. |
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Lead Time |
1-30 days accordingly to your orders. |
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Quality System |
100% inspection before shipment, (CMM, Projector, Gauge and other inspection tools) |
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Size |
Customization |
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Standard |
OEM/ODM |
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FOB Port |
Xiamen,China |
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Pay ment |
50% T/T in advance,50 % before shipment . Accept T/T L/C ,Escrow,paypal,Western Union |
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Packing |
Carton box, wooden case, pallet, etc. |
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Shipping |
By sea,by air,by DHL ,UPS, FedEx, TNT or EMS,ect. |
Titanium tube
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Name |
Titanium Tube & Pipe |
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Material |
Pure Titanium/ Titanium Alloy |
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Standard |
GB/T 3624,GB/T 3625,GB/T 26057
ASTM B337,ASTM B338,ASTM B861,ASTM B862 JIS H 4630 |
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Common Grade |
National standard grades: TA1, TA2, TC4, TA9, TA18, TA10 |
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Length: 50-6000mm or according to customer requirements |
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Outer diameter: 3-300mm or according to customer requirements |
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Wall thickness: 0.2-5.5mm or according to customer requirements |
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Section shape |
Round / Square/Oval/Spiral/Bar |
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Surface |
Bright annealing, Pickling,Polishing |
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Titanium rod
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Material
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Pure titanium and Titanium alloy
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Titanium Grade
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GR1/GR2/GR3/Gr4/GR5/GR7/GR9/GR12/Gr5Eli/Gr23
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Standard
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ASTM B348/ASME SB348, ASTMF67, ASTM F136, ISO-5832-2(3),AMS 4928 etc
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Shape
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Titanium round rod/bar, Titanium square rod/bar,Titanium flat rod/bar
Titanium rectangle rod/bar, Titanium hex rod/bar |
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Diameter
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1-300mm,customizable
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Length
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50mm-6000mm,customizable
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Tolerance
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h6~h13 H10~H13
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Surface
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Bright/Polished/ Machined
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Main Technique
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Hot Forged; Hot Rolled; Cold drawn; Straighten etc
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Heat Treatment
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Usually are Annealled,but Solid Solution & Aging can be also OK
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Material Milling Certificate
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According to. EN 10204.3.1
Including Chemical composition and Mechanical property |
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Application
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Metallurgy, Electronics, Medical, Chemical, Petroleum, Pharmaceutical, aerospace, etc.
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Titanium sheet/plate/strip
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Grade |
GR1,GR2,GR3,GR5,GR6,GR7,GR9,GR11,GR12, etc. |
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Standard |
ASTM B265,ASTM F136,ASTM F67,AMS4928 |
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Size |
0.5-5.0mm x 1000mm x 2000-3500mm (Thickness x Width x Length) |
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Application |
Metallurgy, electronics, machinery, medical treatment, chemical industry, petroleum, medical treatment, aerospace |
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Supply status |
M (Y/ R/ ST) |
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Feature |
High corrosion resistance, low density, good thermal stability |
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Technics |
Hot Forged, Hot Rolled, Cold Rolled, Annealing, Pickling |
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Surface |
Bright, Polished, Pickling, Acid cleaning, Sandblasting |
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Packing |
Export Standard Woodcase |
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Payment terms |
T/T, L/C, D/A, D/P, Escrow, Western Union, PayPal |
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Certificate |
ISO 9001:2008; The third test report; TÜV Rheinland; |
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Delivery time |
7-15days according to the quantity and process of the product |
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Quality and test |
Hardness test, Bending test, Hydrostatic etc. |
Titanium wire
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Wire Shape |
Round Wire |
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Diameter Range(mm) |
0.1-2.5 |
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Standards |
ASTM F2063,GB 24627 |
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Diameter Tolerance |
±0.001mm |
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Surface Finish |
Black Oxidized, Lightly Oxidized, Bright, Ultra Bright, Polished, Clean |
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Delivery Condition |
Straightened superelastic , Cold-worked |
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Supply Form |
Spool wound, Straight |
About Us
GNEE is a trusted exporter of high-purity titanium raw materials. We utilize advanced forging and precision CNC machining to ensure superior product quality. Every shipment is guaranteed through a rigorous pre-shipment inspection process, verifying chemical composition, mechanical properties, and dimensional accuracy to meet global standards.
Email:sale@gneemetal.com
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Enterprise Employees
Cooperating Partner
Years Experience
