logo
products
PRODUCTS DETAILS
Home > Products >
Stainless Steel Butt Welded Flanging Loose Sleeve Looper Stub Carbon Steel Alloy Seamless Flanging

Stainless Steel Butt Welded Flanging Loose Sleeve Looper Stub Carbon Steel Alloy Seamless Flanging

MOQ: 100kgs
Price: Negotiation
Standard Packaging: Standard sea worth bundles,Standard Plywood cases
Delivery Period: 15days
Payment Method: L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Capacity: 2000tons/per month
Detail Information
Place of Origin
China
Brand Name
YUHAO
Certification
ASTM, AISI, GB, DIN, JIS,EN
Model Number
Butt Weld Pipe Fittings
Wall Thickness:
SCH 5s-SCH XXS
Customized Support:
OEM, ODM, OBM
Surface Treatment:
Mirror, Polishing, Sandblasting, Sand Rolled.
Connection Type:
Butt Welded
Application:
Oil, Gas, Chemical, Petrochemical, Power, Etc.
Packing:
PLY-wooden Case Or Pallet Or As For Clients' Requirements.
Standard:
EN, ASTM, AISI, DIN, JIS
Grade:
304, 304L, 316, 316L, 410, 420, 439
Service:
Product Customization
Size:
1/2" Up To 48"
Type:
Long Or Short
Product Description

Stainless Steel Butt Welded  Flanging Loose Sleeve Looper Stub Carbon Steel Alloy Seamless Flanging



►Products description

Our stainless steel butt welded stub ends are meticulously crafted to create flawless connections between pipes and lap joint flanges.     Manufactured from premium 304, 316, 316L, 321, and duplex stainless steels, these critical components deliver:

  • ​​Perfect Flange Alignment:​​ CNC-machined surfaces ensure exact matching with lap joint flanges
  • ​​System Maintenance Efficiency:​​ Enables quick disassembly without pipe cutting
  • ​​Pressure Integrity:​​ Rated for ANSI Class 150 to 2500 applications
  • ​​Superior Corrosion Resistance:​​ Ideal for chemical processing, offshore, and high-temperature services


​​Advanced Manufacturing Excellence:​​
We set industry standards through:

Cutting-Edge Production:​​

  • 5-axis CNC machining centers with micron-level precision
  • Automated orbital welding with full radiographic testing
  • Complete in-house heat treatment capabilities


​​Uncompromising Quality Standards:​​

  • 100% dimensional verification to ASME B16.25 specifications
  • Full material traceability with certified mill test reports
  • Optional PMI testing and comprehensive NDE services


​​Our Competitive Advantages:​​

  • ​​Global Supply Network:​​ Reliable worldwide distribution
  • ​​Technical Excellence:​​ Dedicated engineering support team


​​Material Specifications:​​

  • Available Grades: 304, 316/L, 321, 347, 904L, Duplex 2205, Super Duplex 2507
  • Sizes: 1/2" to 60" diameters
  • Pressure Ratings: Class 150 to 2500
  • Surface Finish: Standard mill finish to 32Ra micro-finish


Trust our stainless steel butt welded stub ends for your most demanding flange connection requirements. Our engineering team provides complete technical support from specification to installation.


►Industry-specific attributes

Place of Origin China
Brand name Yuhao
Connectivity Welding
Size 1/2" up to 48"
Wall thickness SCH 5s-SCH XXS
customized Support ASTM DIN EN BS JIS GOST etc.
Surface treatment Sand blasting, Roll blasting, Pickled or Polished
Type Long or Short
Pressure High Pressure
Packing Cartons, Pallet, Cases


►Product Size

DN NPS OD Nominal Wall Thickness
Schss Sch10S Sch405 Sch8os Sch10 Sch20 Sch30 STD Sch40 Sch60 XS
6 1/8 10.3 - 1.24 1.73 2.41 - - - 1.73 1.73 - 2.41
8 1/4 13.7
1.65 2.24 3.02 - - - 2.24 2.24 - 3.02
10 3/8 17.1 - 1.65 2.31 3.2 - - - 2.31 2.31 - 3.2
15 1/2 21.3 1.65 2.11 2.77 3.73 - - - 2.77 2.77 - 3.73
20 3/4 26.7 1.65 2.11 2.87 3.91 - - - 2.87 2.87 - 3.91
25 1 33.4 1.65 2.77 3.38 4.55 - - - 3.38 3.38 - 4.55
32 1 1/4 42.2 1.65 2.77 3.56 4.85 - - - 3.56 3.56 - 4.85
40 1 1/2 48.3 1.65 2.77 3.68 5.08 - - - 3.68 3.68 - 5.08
50 2 60.3 1.65 2.77 3.91 5.54 - - - 3.91 3.91 - 5.54
65 2 1/2 73 2.11 3.05 5.16 7.01 - - - 5.16 5.16 - 7.01
80 3 88.9 2.11 3.05 5.49 7.62 - - - 5.49 5.49 - 7.62
90 3 1/2 101.6 2.11 3.05 5.74 8.08 - - - 5.74 5.74 - 8.08
100 4 114.3 2.11 3.05 6.02 8.56 - - - 6.02 6.02 - 8.56
125 5 141.3 2.77 3.4 6.55 9.53 - - - 6.55 6.55 - 9.53
150 6 168.3 2.77 3.4 7.11 10.97 - - - 7.11 7.11 - 10.97
200 8 219.1 2.77 3.76 8.18 12.7 - 6.35 7.04 8.18 8.18 10.31 12.7
250 10 273 3.4 4.19 9.27 12.7 - 6.35 7.8 9.27 9.27 12.7 12.7
300 12 323.8 3.96 4.57 9.53 12.7 - 6.35 8.38 9.53 10.31 14.27 12.7
350 14 355.6 3.96 4.78 - - 6.35 7.92 9.53 9.53 11.13 15.09 12.7
400 16 406.4 4.19 4.78 -
6.35 7.92 9.53 9.53 12.7 16.66 12.7
450 18 457 4.19 4.78 - - 6.35 7.92 11.13 9.53 14.27 19.05 12.7
500 20 508 4.78 5.54 - - 6.35 9.53 12.7 9.53 15.09 20.62 12.7
 


►Factroy Shoot

Stainless Steel Butt Welded  Flanging Loose Sleeve Looper Stub Carbon Steel Alloy Seamless Flanging 0

Stainless Steel Butt Welded  Flanging Loose Sleeve Looper Stub Carbon Steel Alloy Seamless Flanging 1

Stainless Steel Butt Welded  Flanging Loose Sleeve Looper Stub Carbon Steel Alloy Seamless Flanging 2


►FAQ

Q1: Can you provide the free samples?

A: We can supply the free samples but the sample express freight need paid by yourside.

 

Q2: What about your delivery time if we placed order?

A: We have large of ready stock,in general we can delivery within 2-10days.

 

Q3: How long is your production lead time?

A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.

 

Q4: How is the quality about the products?

A: Quality is priority. We pay much attention to the quality check. Every product will be fully assembled and carefully tested before it's packed for shipment.

 

Q5: What is your minimum order quantity?

A: The MOQ for each product is different, so it would be recommended to refer to the detail page of the product you are interested in. If you need further clarification, send me the product link, and I will reply as soon as possible.

products
PRODUCTS DETAILS
Stainless Steel Butt Welded Flanging Loose Sleeve Looper Stub Carbon Steel Alloy Seamless Flanging
MOQ: 100kgs
Price: Negotiation
Standard Packaging: Standard sea worth bundles,Standard Plywood cases
Delivery Period: 15days
Payment Method: L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Capacity: 2000tons/per month
Detail Information
Place of Origin
China
Brand Name
YUHAO
Certification
ASTM, AISI, GB, DIN, JIS,EN
Model Number
Butt Weld Pipe Fittings
Wall Thickness:
SCH 5s-SCH XXS
Customized Support:
OEM, ODM, OBM
Surface Treatment:
Mirror, Polishing, Sandblasting, Sand Rolled.
Connection Type:
Butt Welded
Application:
Oil, Gas, Chemical, Petrochemical, Power, Etc.
Packing:
PLY-wooden Case Or Pallet Or As For Clients' Requirements.
Standard:
EN, ASTM, AISI, DIN, JIS
Grade:
304, 304L, 316, 316L, 410, 420, 439
Service:
Product Customization
Size:
1/2" Up To 48"
Type:
Long Or Short
Minimum Order Quantity:
100kgs
Price:
Negotiation
Packaging Details:
Standard sea worth bundles,Standard Plywood cases
Delivery Time:
15days
Payment Terms:
L/C,D/A,D/P,T/T,Western Union,MoneyGram
Supply Ability:
2000tons/per month
Product Description

Stainless Steel Butt Welded  Flanging Loose Sleeve Looper Stub Carbon Steel Alloy Seamless Flanging



►Products description

Our stainless steel butt welded stub ends are meticulously crafted to create flawless connections between pipes and lap joint flanges.     Manufactured from premium 304, 316, 316L, 321, and duplex stainless steels, these critical components deliver:

  • ​​Perfect Flange Alignment:​​ CNC-machined surfaces ensure exact matching with lap joint flanges
  • ​​System Maintenance Efficiency:​​ Enables quick disassembly without pipe cutting
  • ​​Pressure Integrity:​​ Rated for ANSI Class 150 to 2500 applications
  • ​​Superior Corrosion Resistance:​​ Ideal for chemical processing, offshore, and high-temperature services


​​Advanced Manufacturing Excellence:​​
We set industry standards through:

Cutting-Edge Production:​​

  • 5-axis CNC machining centers with micron-level precision
  • Automated orbital welding with full radiographic testing
  • Complete in-house heat treatment capabilities


​​Uncompromising Quality Standards:​​

  • 100% dimensional verification to ASME B16.25 specifications
  • Full material traceability with certified mill test reports
  • Optional PMI testing and comprehensive NDE services


​​Our Competitive Advantages:​​

  • ​​Global Supply Network:​​ Reliable worldwide distribution
  • ​​Technical Excellence:​​ Dedicated engineering support team


​​Material Specifications:​​

  • Available Grades: 304, 316/L, 321, 347, 904L, Duplex 2205, Super Duplex 2507
  • Sizes: 1/2" to 60" diameters
  • Pressure Ratings: Class 150 to 2500
  • Surface Finish: Standard mill finish to 32Ra micro-finish


Trust our stainless steel butt welded stub ends for your most demanding flange connection requirements. Our engineering team provides complete technical support from specification to installation.


►Industry-specific attributes

Place of Origin China
Brand name Yuhao
Connectivity Welding
Size 1/2" up to 48"
Wall thickness SCH 5s-SCH XXS
customized Support ASTM DIN EN BS JIS GOST etc.
Surface treatment Sand blasting, Roll blasting, Pickled or Polished
Type Long or Short
Pressure High Pressure
Packing Cartons, Pallet, Cases


►Product Size

DN NPS OD Nominal Wall Thickness
Schss Sch10S Sch405 Sch8os Sch10 Sch20 Sch30 STD Sch40 Sch60 XS
6 1/8 10.3 - 1.24 1.73 2.41 - - - 1.73 1.73 - 2.41
8 1/4 13.7
1.65 2.24 3.02 - - - 2.24 2.24 - 3.02
10 3/8 17.1 - 1.65 2.31 3.2 - - - 2.31 2.31 - 3.2
15 1/2 21.3 1.65 2.11 2.77 3.73 - - - 2.77 2.77 - 3.73
20 3/4 26.7 1.65 2.11 2.87 3.91 - - - 2.87 2.87 - 3.91
25 1 33.4 1.65 2.77 3.38 4.55 - - - 3.38 3.38 - 4.55
32 1 1/4 42.2 1.65 2.77 3.56 4.85 - - - 3.56 3.56 - 4.85
40 1 1/2 48.3 1.65 2.77 3.68 5.08 - - - 3.68 3.68 - 5.08
50 2 60.3 1.65 2.77 3.91 5.54 - - - 3.91 3.91 - 5.54
65 2 1/2 73 2.11 3.05 5.16 7.01 - - - 5.16 5.16 - 7.01
80 3 88.9 2.11 3.05 5.49 7.62 - - - 5.49 5.49 - 7.62
90 3 1/2 101.6 2.11 3.05 5.74 8.08 - - - 5.74 5.74 - 8.08
100 4 114.3 2.11 3.05 6.02 8.56 - - - 6.02 6.02 - 8.56
125 5 141.3 2.77 3.4 6.55 9.53 - - - 6.55 6.55 - 9.53
150 6 168.3 2.77 3.4 7.11 10.97 - - - 7.11 7.11 - 10.97
200 8 219.1 2.77 3.76 8.18 12.7 - 6.35 7.04 8.18 8.18 10.31 12.7
250 10 273 3.4 4.19 9.27 12.7 - 6.35 7.8 9.27 9.27 12.7 12.7
300 12 323.8 3.96 4.57 9.53 12.7 - 6.35 8.38 9.53 10.31 14.27 12.7
350 14 355.6 3.96 4.78 - - 6.35 7.92 9.53 9.53 11.13 15.09 12.7
400 16 406.4 4.19 4.78 -
6.35 7.92 9.53 9.53 12.7 16.66 12.7
450 18 457 4.19 4.78 - - 6.35 7.92 11.13 9.53 14.27 19.05 12.7
500 20 508 4.78 5.54 - - 6.35 9.53 12.7 9.53 15.09 20.62 12.7
 


►Factroy Shoot

Stainless Steel Butt Welded  Flanging Loose Sleeve Looper Stub Carbon Steel Alloy Seamless Flanging 0

Stainless Steel Butt Welded  Flanging Loose Sleeve Looper Stub Carbon Steel Alloy Seamless Flanging 1

Stainless Steel Butt Welded  Flanging Loose Sleeve Looper Stub Carbon Steel Alloy Seamless Flanging 2


►FAQ

Q1: Can you provide the free samples?

A: We can supply the free samples but the sample express freight need paid by yourside.

 

Q2: What about your delivery time if we placed order?

A: We have large of ready stock,in general we can delivery within 2-10days.

 

Q3: How long is your production lead time?

A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.

 

Q4: How is the quality about the products?

A: Quality is priority. We pay much attention to the quality check. Every product will be fully assembled and carefully tested before it's packed for shipment.

 

Q5: What is your minimum order quantity?

A: The MOQ for each product is different, so it would be recommended to refer to the detail page of the product you are interested in. If you need further clarification, send me the product link, and I will reply as soon as possible.