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China Butt Weld Fittings manufacturer


TOBO International Trading(Shanghia)Co.,Ltd       Tianda Oil Pipe Co., Ltd

TOBO Pipeline Equipment Co.,Ltd        TPCO & TISCO Pipe(Tianjin)Co.,Ltd.                        


June 15, 2022

​Ansi B16.9 4X3 Inch Std40 Concentric Eccentric Reducer

​Ansi B16.9 4X3 Inch Std40 Concentric Eccentric Reducer

Product Description

Asme ansi b16.9 316 F316 361L 316H317 317L F317 F347 F348 4*3 inch std40 stainless steel concentric eccentric reducer

1) Product name: concentric reducer with weld end
2) Stardard: AISI,SUS,GB,JIS,ASTM,DIN etc.
3) Grade: carbon steel ,200,300,400series, 201,202,301,303,304,304L,310S,316,316Ti,316L,321,317,410,420,430,630 ,904L,CuNi9010 etc.
4) Size:


From ½” up to 72” From 1/2 to 30 (Seamless Pipe Fittings),
Form16 to 72(Seam Pipe Fittings),

or According to client's requirement

5) Technology: Hot rolled, Cold drawn,Pickled,Forged,
6) Packing: Standard export package or following client's request
7) Payment term: L/C, T/T,Western Union,etc.
8) Quality: We can offer the certifications of chemical compostion and mechanical property
9)Application Machine-made industry, chemical industry, shipping industry architecture, food industry, household products,and so on.


ASME B16.9-2007

ASME B16.25-2007

ASME B16.5-2007

EN10253-1-1999 EN10253-2-2007 EN10253-3-2008 EN10253-4-2008

DIN2605-1-1992 DIN2605-2-1995

JIS B2311-2009 JIS B2312-2009 JIS B2313-2009

GB/T12459-2005 GB/T13401-2005 GB/T10752-2005

SH/T3408-1996 SH/T3409-1996

SY/T0609-2006 SY/T0518-2002 SY/T0510-1998

DL/T695-1999 GD2000 GD87-1101

HG/T21635-1987 HG/T21631-1990


Dtailed Production Description

1)Size: Seamless: 1/2”-60" SCH10s-XXS

2)Standard: ANSI B16.9/B16.11/B16.28, DIN, JIS, ISO

3)Material:carbon steel:A234-WPB WPC,

alloy steel :A420-WPL6, A234-WP11, A234-WP12, A234-WP5,A234-WP9,A234-WP22,15Mo3,15CrMoV,35CrmoV

stainless steel:A403 WP 304-304L-304H-304LN-304N

A403 WP 316-316L-316H-316LN-316N-316Ti

A403 WP 321-321H

A403 WP 347-347H

low tempture steel: A402 WPL3-WPL6

high performance steel: A860 WPHY 42-46-52-60-55-70

4)Surface treatment: carbon steel: shot blasted, black painting, rust-proof oil,transparent oil, galvanizing,hot galvanizing

alloy steel: Shot blasted, black painting, rust-proof oil,transparent oil, galvanizing,hot galvanizing

stainless steel: pickled ,Polish

5)Nominal wall thickness:SCH5-SCH160, STD, XS, XXS

6)Packing: Wooden case or wooden pallet according to the size of fittings

7)Delivery time:7-10 days for a 20 ft container

8)Others:1) Special design available 2)All the production process are made under the ISO 9001:2000 strictly.


Our products are widely used in pipeline engineering of the industries of oil and gas (including petrochemical), chemical

and pharmaceutial, pulp and paper, fertilizer, desalination, nuclear, electrict power, boiler,heat exchanger,metallurgy, refinery,

machinery,steel fabrication,shipbuilding, water disposal, construction, aviation,textile,ect.

our advangtage

1) Raw material use 100% material steel

2) good service

3) Competive price

4) Fast delivery

5)High quality products

other products

we can provide steel butt weld pipe fittings such as elbow, tee, reducer,cap,bend and so on. Good quality, competitive price

and excellence service are your best choice.

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Packaging & Shipping



Packing Details :In wooden case, pallets or as per customers’ requirement
Delivery Details : 7-15 days after the PO


Our Services



We have more than 20 professional sales and service staff . they have good knowledge in produce and international business , any questions you can call us or talk with online service.


We accept all kinds of payment terems, such like T/T (bank transfer) and Western Union, even Paypal or Credit card and L/C , you can chose the best way for your business.


We accept small order , like sample order .we know that you need samples to check our quality . we can provide 1- 10 pcs products send to you to check .


We take part in trade assurance system. that means 100% protect the buyers . after you received goods if you are not satisfied with our products . you can get all your money back though trade assurance



Our Advantages



More than 120 top-class mills


A number of advanced equipments


Company with a variety of detection devices


We have five branch factories

If the quantity of order is not very big,we could send them to you by express delivery,such as TNT,DHL,UPS OR EMS etc.

If order is big ,we will advise you use Air Shipping or Sea Shipping through your nominated forwarder agent.Our long-term cooperated agent also available.



1. Are you trading company or manufacturer ?

We are manufacturer ,You can see the Alibaba certification.

2. How long is your delivery time?

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.

3. Do you provide samples ? is it free or extra ?

Yes, we could offer the sample for free charge but need pay the cost of freight.

4. What is your terms of payment ?

Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.


Contact Details