C&N HUITONG limited are leading steel pipe,fitting and flange Supplier since 1997.
Phone: +86-0317-6287569     E-mail: alloypipefitting@gmail.com


Stainless Steel Buttweld Fittings

Dimension:1/2in to 48in

Material:WP304/304L/304H, WP310S, WP316/316L, WP317, WP321

Standard:ASME B16.9,ASME B16.28,BS 1640,BS1965, DIN2605, 

                                DIN2616,EN10253-1, GOST 17376,GOST 17378,MSS SP-75  

Inspection:MT, PT,UT,VT etc

Feature:Stock regular sizes, Bevel weld end CNC machining acc B16.25 ,

                                Pressure test postive,OEM service, Customized bending available.  

  • Product Details
  • FAQS
  • Packing & Delivery

HONGCHENG is a manufacturer of 304 & 316 Stainless Steel Buttweld Fittings which cover Equal & Reducing Tee, Pipe Elbow & Bend, Concentric & Eccentric Reducer.

With excellent performance, customers demanded stainless steel pipe fittings in various industries. We stock plenty of SS 304, SS 316 butt weld fittings in regular sizes, keep abreast of the schedule of ship, that’s why we always deliver the goods to you in time.

Stainless Steel Buttweld Fittings Dimensions

Standard ASME B16.9 & ANSI B16.19
Dimension 1/2 to 80 Inch / DN15 — DN2000
Thickness Sch 10S, 20, STD, 40S, 80S, 100, 120,140, 160, XXS
Form Seamless and Welded Pipe Fittings
End Preparation BE (Beveled End)  & PE ( Plain End)

ASME B16. 9 Standard

It is the most common used specification standard for Factory-Made Wrought Buttwelding Fittings. It covers the requirements for dimensions, tolerances, ratings, testings and markings.

Buttwelding Fittings Catalogue

  • To Change Directions

Butt Weld Elbows are used to connect two pipes with same or different nominal diameters, and to make the pipe turn to a certain direction of 45 degree or 90 degree.

Types: 90 Degree Elbow, 45 Degree Elbow, 180 Degree Elbow. Stainless Steel Pipe Bend

  • To Provide Branches

Butt Weld Tees are used to join three different pipes forming a junction. It is normally called as “3-way fitting”. It symbolizes an alphabet “T” which include two inlets and single outlet.
There are two types that Equal Tee and Reducing Tee.

  • To Block Pipeline

Butt Weld Caps are used to weld and block end of pipeline. We call it as Pipe Cap and End Cap.

  • To Reduce Pipe Dimensions

Butt Weld Reducers are connected with pipes in different diameters.
Concentric Reducer, Eccentric Reducer, Reducing Elbow

  • To Use With Flanges

Lap Joint Stub Ends are used in combination with a lap joint flange to make flanged connections.

ASTM Stainless Steel Grades

Grades ASTM A403 WP304/304L, WP304H, WP310S, WP316/316L, WP317, WP321, WP947
UNS Code S30400, S30403, S30409, S31008, S31600, S31603, S31700, S32100

Packing of Stainless Steel Buttweld Fittings

Inspection of Stainless Steel Equal Tee

Visual the surface of stainless steel equal tee fittings body.

Check the marking.<2″ SCH40S ASTM A403 WP316 ASME B16.9 ZZ155>

Measure dimensions. Such as outside diameter, height from end to end, wall thickness.

Buttweld Fittings vs Socket Weld Fittings

  • Standard

ASME B16.9 for buttweld fittings
ASME B16.11 for socket weld fittings

  • Dimensions

BW : 1/2″ to 48″

SW: 1/8″ to 4″

  • Manufacturing

BW: Hot Forming

SW: Forging

  • Price

Normally, the price of socket weld fittings is higher than butt weld fittings in similar size. But the extra cost of butt weld is higher for installation, considering labor cost and skilled welder


pipe fitting with special bending

Frequently Asked Questions

Easy to enjoy our service by scan the follow Frequently Asked Questions

Q: What kind of material does HONGCHENG supply?

HONGCHENG generally specializes in alloy steel and specialty alloys. Some of these specialty alloys include Alloy 20, Duplex Alloys, Nickel Alloys such as various grades of Hastelloy (C276, C22), Aluminum, Chrome Moly ASTM A/ASME SA 335 P1, P2, P5, P9, P11, P12,P22, P23, P91, and P92.
we also offer bending,CNC machining, coating service.

Q. What the define of pipe fittings?
Pipe fitting is the occupation of installing or repairing piping or tubing systems that convey liquid, gas, and occasionally solid materials. This work involves selecting and preparing pipe or tubing, joining it together by various means, and the location and repair of leaks.
Pipe fitting work is done in many different trades: Plumbing, HVAC, manufacturing, fire prevention, and many others. Pipe fitters (sometimes called simply “fitters”) are represented in the USA by the United Association of Journeymen and Apprentices of the Plumbing and Pipe Fitting Industry of the United States and Canada.
Fitters work with a variety of pipe and tubing materials including several types of plastic, copper, steel, iron, aluminium, clay, and lead.

Q. What should I consider for buying pipe fittings?
A. Material, Size, Temperature and Pressure Ratings, Durability, Standards,surface coating etc. And also need share flow media and pressure if need our customized pipeline design service.

Q. What are threaded fittings?
A. Thread fitting is the fitting with thread concetions,the regular screw standards are NPT and BSP.NPT is a U.S. standard for tapered threads used to join pipes and fitting and BSP is a family of standard screw thread types that has been adopted internationally for interconnecting and sealing pipe ends by mating an external (male) with an internal (female) thread.

Q. The define of flange?
A. A flange is usually in the shape of a plate or ring which forms a rim at the end of a pipe when fastened to the pipe.

Q.Do you provide Material Test Reports (MTR’s) ?
Relevant documents according to inspection test plan will be provide along with goods which according to EN10204 3.1.

Q.What is a standard used in pipe fittings?
A. Standards are certain authentication given in reference to manufacture and installation of the product . Some common standards are BSP, NPT, ANSI, ASME etc

Q.Did your company provide design service?
A. Yes, besides design serivce ,we also provide deep process for pipeline products as below

• special coating like FBE,3LPE,PU etc
• Forging
• Surface treatment with Electroplating ,Coating (Zinc, chromed)
• Threading (As per Guage)
• Minor Fabrication
• Machining (CNC)
• Heat Treatment (Hardening & Tempering)
• Die Casting
• Bending

Q. My questions is not answered in this FAQs section, what do I do now?
A: Simply call us or email us at info@alloysteelfitting.com and we will do our best to effectively answer all of your product or order questions. .

All our pipe fitting and flange shipped with proper packing protection, and our factory with good experience on special products like polished pipe packing ,FBE coated fitting and pipe packing, oversizes fitting up to 3500mm packing&shipping.

Common shipping and packing for our products

Item Producs   Dimension Surface Packing
1 Flange below 60in varnish oil wooden case sea/air  
2 Flange over 60in varnish oil wooden pallet/steel frame sea/air For OD over 2.3m
3 Fitting below 24in varnish oil wooden case/pallet sea/air  
4 Fitting over 24in black painting wooden case/pallet sea/air  
5 Fitting over 24in black painting Nude packing Bulk vessel For OD over 2.32m
6 Pipe Below 8in bundle Woven bag/wooden case sea/air  
7 Pipe over 8in single piece Woven bag/wooden case sea/air  
8 Gasket all sizes   Cartons/wooden case sea/air  
9 Fastener all sizes   Cartons/wooden case sea/air  

Also we can fulfill customized packing and delivery requirements. some of our products packing pictures as below

Flange packing Flange packing Steel pipe wooden case packing

Pipe fitting pallet packing Forge fitting packing FBE pipe fitting packing
SPW gasket packing Steel pipe bulk cargo packing Steel frame packing
Steel pipe protection Customize products packing Customize products packing


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