Phone/Whatsapp:+8613917160311
Email: info@nxf-group.com
Email: Andrew@nxf-group.com
Email: Alice@nxf-group.com
NXF UNS S17400/17-4PH/AISI 630 OD DN15-1200 Thickness SCH10-XXS Special Stainless Steel 90/45 Degree L/R or S/R BW Elbow
Grade 17-4 stainless steel can be formed mildly.
Welding
Grade 17-4 stainless steel can be welded using common fusion and resistance welding methods. Oxyacetylene welding method is not
preferred for welding this alloy.
Heat Treatment
Grade
17-4 stainless steel is soaked at 1038°C (1900°F) for 30 min and cooled below 16°C (60°F) for complete martensite
transformation in the condition A. The condition A material is treated at 482°C (900°F) for 1 h followed by cooling. Solutiontreated material is soaked for 4 h at specific temperature in H925, H1025, H1075, H1100, and H1150 conditions followed by cooling in air.
Solution treated material is soaked at 760°C (1400°F) for 2 h in the H1150M condition followed by cooling. It is again heated at620°C (1150°F) for 4 h followed by cooling.
Forging
Grade 17-4 stainless steel is forged at 1010°C (1850°F). Before performing this process, it is soaked at 1177°C (2150°F).
Post-work solution treatment should be performed before final hardening.
Hot Working
Grade 17-4 stainless steel can be hot worked using common processes. It is treated at 1038°C (1900°F).
treatment should be performed before final hardening.
Cold Working
Grade 17-4 stainless steel can be cold worked using common techniques in spite of its high initial yield strength.
Annealing
Grade 17-4 stainless steel is annealed at 1038°C (1900°F) for 0.5 h followed by cooling rapidly.
Hardening
Grade 17-4 stainless steel has high ductility, and can be formed using all conventional techniques. Powerful equipments are required for forming this alloy because it is stronger than the regular steel. Heavy-duty lubricants are used during cold working.
Applications
Grade 17-4 stainless steel is used in the following applications:
* Nuclear reactor
* Aircraft and gas turbines
* Oil field
* Chemical process components
* Paper mill
Elbow, also known as 90-degree elbow or right-angle elbow, is a pipe fitting used in the piping system to change the direction ofthe pipeline. It is mainly applied in the field of plumbing installation. This pipe fitting can be classified into three common types according to the angle: 45°, 90°, and 180°. It also includes non-standard angles such as 60° for special engineering requirements. When the bending radius is less than or equal to 1.5 times the pipe diameter, it is defined as an elbow. The material of the elbow covers cast iron, wrought cast iron, stainless steel, alloy steel, carbon steel, non-ferrous metals, and plastics, and the connection methods include direct welding, flange connection, hot melt connection, electric fusion connection,threaded connection, and socket connection, etc. The main production processes include hot push forming, stamping forming, andplate welding. Among them, the hot push process has the characteristics of uniform wall thickness and continuous operation, andhas become the main production method for carbon steel elbows. The products need to undergo surface shot blasting treatment andanti-corrosion paint coating. This pipe fitting is widely used in engineering fields such as chemical engineering, construction,petroleum, power, shipbuilding, etc. It performs the functions of direction conversion and connection of different pipe diametersin the pipeline system and is also known by industrial names such as butt-weld elbow.
Our advantage as follow:
1.We have our own factory, and we can control the cost by producing by ourselves. We have a great advantage in price and can give you the lowest price.
2. We can strictly control the quality. We have production, quality inspection, warehousing and other departments to coordinate and control the quality.
3. Our biggest advantage is 3S service. Small quantity, short time, special materials. 4.We have excellent quality certificate system and trademark certificate
4. Forming：Hot pushing: Push heated blanks via pushing machine to form elbow shape with mold. - Hot forging: Forge blanks into
elbow rough shape by forging press.
5. Trimming：Remove flash, burrs and excess material from formed elbows.
6. Heat Treatment：Quench + temper to improve hardness, toughness and corrosion resistance.
7. Machining：Process end faces, inner/outer diameters to meet dimensional accuracy.
8. Surface Treatment：Derust via shot blasting/pickling, then do anti-corrosion coating (painting, galvanizing).
9. Inspection：Check dimensions, appearance, non-destructive testing (UT, RT) and pressure test.
10. Packing & Storage：Pack qualified elbows and store in dry, ventilated warehouse.
New XiFei (SuZhou) Business Co.,Ltd is one of the leading and most respected manufacturers in China. Our products include metals, machinery, containers, construction materials, mechanical products, electrical systems, and medical accessories. Established in 1980, XIFEI has been working diligently ever since to embrace the needs of our global customer base.We work to ensure absolute customer satisfaction. Our team has dedicated itself to perfecting our three core components, "Service, Management and Craftsmanship."
Our advantage as follow:
1.We have our own factory, and we can control the cost by producing by ourselves. We have a great advantage in price and can give you the lowest price.
2. We can strictly control the quality. We have production, quality inspection, warehousing and other departments to coordinate and control the quality.
3. Our biggest advantage is 3S service. Small quantity, short time, special materials.
1. who are we?
We are based in Jiangsu, China, start from 2021,sell to South Asia(30.00%),Eastern Asia(10.00%),Mid East(10.00%),Eastern Europe(10.00%),South America(10.00%),Domestic Market(5.00%),North America(5.00%),Northern Europe(5.00%),Central America(5.00%),Africa(5.00%),Southeast Asia(5.00%). There are total about 101-200 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Pipe,Flange,Steel plate,Pipe fittings,Alloy products
4. why should you buy from us not from other suppliers?
Our advantage:3S Service (Small Quantity/Short Time/Special Material) We have our own factories, quality can be controlled seriously.We Specialize in manufacturing about 21 years.We have professional testing department and testing equipment.
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FCA,DDP,DDU；
Accepted Payment Currency:USD,EUR,CAD,HKD,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A,Credit Card,PayPal;
Language Spoken:English,Chinese,Spanish,Russian
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