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NXF UNS S20910 XM-19 OD DN15-1200 Thickness SCH10-XXS Special Stainless Steel Butt Welding Eccentric/Concentric Reducer
2026-04-08 19:59 NXFGROUP
9
Product Description
UNS S20910 XM-19 stainless steel Introduction
UNS S20910 XM-19 stainless steel Introduction
UNS S20910 XM-19 stainless steel is an austenitic stainless steel with a blend of strength and corrosion resistance that is higher than stainless steel grades 316, 316/316L, 317, and 317/317L .The high strength, corrosion resistance, and low
magneticpermeability of this alloy allows it to be used as a material for
medical implants.
Machinability
Stainless steel grade UNS S20910 XM-19 has machinability characteristics that are similar to other austenitic stainless
steels;however it requires slower speeds, more power, and higher rigidity due to its high work hardening rate. It is recommended that coated carbide tooling be used.
Forming
Stainless steel grade UNS S20910 XM-19 can be formed using the same methods applied for other austenitic stainless steels. More power for forming and forging is needed for this alloy. Forging can be done at 1177-1204°C (2150-2200°F).
Welding
Welding of stainless steel grade UNS S20910 XM-19 can be performed using traditional joining processes. Recommended filler metal should be UNS S20910 XM-19 (AWS E/ER209). Caution should be taken while using autogenous, high power density joining processes such as EB or laser welding, due to low FN potential and severe outgassing possibility.
Heat Treatment
Final annealing process performed for several of the applications, is done at 1065°C (1950°F), which is followed by water
quenching. In case this material is used in a strongly corrosive environment, annealing should be done at 1121°C (2050°F). This alloy cannot be hardened by heat treatment.
magneticpermeability of this alloy allows it to be used as a material for
medical implants.
Machinability
Stainless steel grade UNS S20910 XM-19 has machinability characteristics that are similar to other austenitic stainless
steels;however it requires slower speeds, more power, and higher rigidity due to its high work hardening rate. It is recommended that coated carbide tooling be used.
Forming
Stainless steel grade UNS S20910 XM-19 can be formed using the same methods applied for other austenitic stainless steels. More power for forming and forging is needed for this alloy. Forging can be done at 1177-1204°C (2150-2200°F).
Welding
Welding of stainless steel grade UNS S20910 XM-19 can be performed using traditional joining processes. Recommended filler metal should be UNS S20910 XM-19 (AWS E/ER209). Caution should be taken while using autogenous, high power density joining processes such as EB or laser welding, due to low FN potential and severe outgassing possibility.
Heat Treatment
Final annealing process performed for several of the applications, is done at 1065°C (1950°F), which is followed by water
quenching. In case this material is used in a strongly corrosive environment, annealing should be done at 1121°C (2050°F). This alloy cannot be hardened by heat treatment.
BW Concentric/Eccentric Reducer
BW Concentric/Eccentric Reducer
Reducer, also known as a concentric or eccentric fitting, is one of the pipe fittings used to connect two pipes of different diameters. Butt-weld reducers are divided into concentric reducers (where the center axes of the larger and smaller ends coincide) and eccentric reducers (where one side of the outer wall of the larger and smaller ends is in a straight line).
Concentric reducing pipe, also known as concentric reducer, is a type of steel butt-welded pipe fitting. Its shape resembles a tapered joint and is used to increase or decrease the diameter along the centerline. It facilitates the transportation of slurry and grinding fluids, is suitable for corrosive operations, and is also beneficial in applications requiring different ratings and wear protection when conveying between flanges or pipes. The midpoint of the nozzles at both ends of the reducer lies on the same axis. Therefore, when changing the pipe diameter, the interference with the fluid flow pattern is minimal, which is advantageous for fluid flow and is suitable for altering the diameter of gas or vertical liquid pipes.
The eccentric reducer, also known as an eccentric pipe fitting, is used quite frequently because it ensures that the top or bottom of the pipe maintains the same elevation before and after the diameter change, which facilitates support. Sometimes, to prevent liquid accumulation at the diameter transition, a concentric reducer is used instead. One end of the eccentric reducer is flat. When changing diameters, the position and direction of the cutting point will differ. Therefore, the installation and function of the eccentric reducer are different. Specifically: when the cutting point of the nozzle faces upward, it is called top installation, which is usually used at the pump inlet and helps with venting. When the cutting point is positioned downward, it is typically used for regulating valve installation and drainage. In general, horizontal liquid pipes usually use eccentric reducers.
BW Concentric Reducer Drawing
BW Concentric Reducer Drawing
BW Eccentric Reducer Drawing
BW Eccentric Reducer Drawing
XM-19 Chemical Composition And Mechanical Properties
XM-19 Chemical Composition And Mechanical Properties
Product Image
Product Image
Our Advantages
Our Advantages
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
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
Reducer Produce Processing
Reducer Produce Processing
1. Cutting: Cut the steel pipe or prefabricated welded pipe billet into pipe segments of the specified length. Generally, the segment length is equal to or slightly greater than the height of the finished reducer. Grind the excess height of the weld seam on the welded pipe billet flush with the base material.2. Local heating: Place the pipe billet in a cylindrical induction heating coil, and start the medium-frequency power supply to heat the section of the billet that needs deformation and necking to the specified temperature, ensuring that the billet is heated evenly and without overheating.
3. Press forming: Vertically place the heated tube billet with the hot end downward into a mold with the large end facing upward. Start the press slider to press the billet until the end is flush with the mold, and the heated part is necked along the inner wall of the mandrel. Then, the mold is lifted and flipped upside down by the press slider using iron chains, pushing the billet into the corresponding workstation tool. After that, use a steel pipe with the same diameter as the small end of the reducer to push the formed reducer out of the mandrel using the press slider, completing the forming of the reducer.
4. End shaping: According to process specifications, cut off the excess parts of the reducer pipe at both ends while leaving a certain machining allowance, then heat both pipe ends and shape them on a hydraulic press to achieve the requirements for machining the pipe end bevel.5. Weld inspection: Perform 100% radiographic and ultrasonic non-destructive testing on the longitudinal seams of seam pipes pressed into reducer pipes. Defective areas exceeding the standard are repaired according to the qualified weld repair procedure, and the same area shall not be repaired more than twice.
6. Heat treatment: Perform the corresponding heat treatment according to the material's heat treatment process specifications, so that the crystal structure inside the product, which was distorted or damaged due to extrusion forming and thermal processing, is restored to the original material's structure, ensuring that the finished reducer has the same performance state as the original material. After treatment, conduct surface hardness tests on each reducer individually.7. Surface treatment: The surface treatment of hot press-molded reducers and the machining of end bevels are the same as those for other pipe fittings.
8. Finished Product Inspection: The finished reducer pipes that have passed process flow inspections are fully measured on the testing platform for appearance, dimensions, and geometric deviations. Products that pass the dimensional measurements undergo comprehensive non-destructive testing.
Packing & Delivery
Company Profile
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.
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.
FAQ
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;
LanguageSpoken:English,Chinese,Spanish,Russian
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;
LanguageSpoken:English,Chinese,Spanish,Russian
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