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Langfang Ding Yang Co., Ltd

Langfang Ding Yang Co., Ltd
location LANGFANG, China

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Our Products

We offer a complete product range of Reducer, Carbon Steel API 5L Seamless Pipe, Hubbed Threaded Flange, Carbon Steel Weld Neck/wn ANSI 150LB Flange and Carbon Steel ANSI B16.5 Forged Flange

Flange Materials

460 - 4,600 / piece Get Latest Price
  • Min. Order (MOQ) 100 Piece
  • Connection Type ANSI, API, DIN, GOST, BS, AS, JIS, JPI
  • Color Black, silver
  • Material Carbon Steel, Stainless Steel, Alloy Steel, Carbon Steel: A105(N) C22.8 ST-37.2 S400 S440 SQ235(CS20#) A106B A53 Q345 Stainless Steel: 304, 304L, 316, 316L, A350 LF2, 321, 347, 347H Alloy Steel: ASTM A182 F1, F5a, F9, F11, F12, F22, F91
  • Type Flange, Carbon Steel, Stainless Steel, Alloy Steel
  • Temperature Range high temperature
  • Durability the service life is far longer than ordinary stainless steel flanges
  • Country of Origin China
  • Brand Dingyang

ASTM SAA105 N 304 304L C22.8 316 316L P245GH A182 LF S235JR A694 RSt 37.2 P265GH P250GH 35CrMo

Additional Information:

Payment Terms : L/C, D/A, D/P, T/T, Western Union,

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Reducer

460 - 4,600 / piece Get Latest Price
  • Min. Order (MOQ) 100 Piece
  • Type Reducer Fittings, Butt Welded Fitting
  • Power 1-3kw, 3-6kw, 6-9kw
  • Condition New
  • Color Black
  • Driven Type Hydraulic
  • Brand Dingyang
  • Size Seamless Fittings : 1/2inch to 24 inch Weld Fittings: 2 inch to 72 inch
  • Material A234 WPB , C, A420 . WPHY 42, WPHY, ST37.0

We are offering 1.Reducer 2. Size Seamless Fittings : 12inch to 24 inch Weld Fittings: 2 inch to 72 inch 3. Wall Thickness SCH10, SCH20, SCH30, SCH40, STD, SCH60, SCH80, XS, SCH100, SCH120, SCH140, SCH160, XXS. 4. Executive Standard ASME B16.9 , MSS SP75, MSS SP43 , EN10253, DIN2605 BS1640 , BS1965, GOST17375, GOST17376, GOST17378, GOST17379, ISO3419 , ISO 5251, JIS B2311, JIS B2312, JIS B2313.DIN 5. Material A234 WPB , C, A420 . WPHY 42, WPHY, ST37.0 6. End Treatment Bevel Ends , Plain Ends , or as per Clients Requirments 7. Surface Treatment and Packing Sand Blast, Paint Black Lacquer or Transparent Oil . Wooden Case or Wooden Pallet or as per customers' requirements.

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Carbon Steel ANSI B16.5 Forged Flange

460 / piece Get Latest Price
  • Min. Order (MOQ) 50 pieces
  • Size 5-10 Inch
  • Usage Industrial Use
  • Color Black
  • Shape Round
  • Surface Finishing Polished
  • Material Carbon Steel
  • Brand Name Dingyang

Carbon Steel Flanges are essential components in piping systems, designed to connect pipes, valves, pumps, and other equipment for efficient fluid or gas transport. Known for their durability, high strength, and cost-effectiveness, carbon steel flanges are widely used in industries such as oil & gas, petrochemical, power generation, and water treatment.

Advantages:
High tensile strength and load-bearing capacity
Cost-effective compared to stainless steel alternatives
Reliable performance in extreme conditions
Customizable sizes (1/2" to 60" or larger) and specifications

Additional Information:

Payment Terms : L/C, D/A, D/P, T/T,

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Coupling

460 / piece Get Latest Price
  • Min. Order (MOQ) 50 pieces
  • Brand Name Forged Fitting
  • Material Stainless Steel
  • Finishing Polished
  • Shape Round
  • Color White, silver
  • Usage Structure Pipe, These fittings are widely used in oil & gas, petrochemical, power generation, and other critical in
  • Type Forged Fitting
  • Country of Origin China
  • Condition New
  • Form Tee, Elbow
  • Size 1/8″ – 4″(6mm – 100mm)

Forged fittings are high-performance pipe connectors manufactured through a precision forging process, ensuring superior strength, durability, and leak-proof performance. Designed for high-pressure and high-temperature systems, these fittings are widely used in oil & gas, petrochemical, power generation, and other critical industries where safety and reliability are paramount.

Exceptional Strength Forged from high-grade carbon steel, stainless steel, or alloy materials, our fittings withstand extreme pressure and stress.

Precision Engineering Machined to exact tolerances for seamless compatibility with pipes, valves, and flanges.

Additional Information:

Payment Terms : L/C, D/A, D/P, T/T

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Square Flange

460 / pc Get Latest Price
  • Country of Origin china
  • Brand Name Dingyang
  • Temperature Range High Temperature
  • Type Flange, Carbon Steel Flange
  • Specialities High Tensile
  • Usage Automobiles Use, Fittings, Industrial Use
  • Color Shiny Silver
  • Surface Finishing Polished
  • Material Carbon Steel: A105(N) C22.8 ST-37.2 Q235
  • Size Range 1/2′ ‘to 4 ‘.
Description

HS code:73079100

1. Size: 1/2 to 4 .

2. Material: Carbon Steel: A105(N) C22.8 ST-37.2 Q235

3. Pressure: Class150, 300, 600, 900.

4. Standard: ANSI, API, DIN, UNI

5. Type: Socket Welding, Threaded,

6. Finish: rust-black proof oil,

7. Connection: Socket & Thread

8. Application: Chemical area, petroleum area construction industry

9. Delivery Time: about within 25 days

10. Packing: as per customer s requirement

Additional Information:

Payment Terms : L/C, D/A, D/P, T/T, Western Union,

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Carbon Steel Weld Neck/wn ANSI 150LB Flange

  • Brand Name Dingyang
  • Material Carbon Steel
  • Surface Finishing Polished
  • Shape Round
  • Color Black
  • Usage Automobiles Use, Fittings, Industrial Use
  • Size 1-5 Inch
  • Type Carbon Steel Flange
  • Country of Origin China
Material Carbon steel ASTM A105. ASTM A350 LF1. LF2, CL1/CL2, A234, S235JRG2, P245GH
P250GH, P280GHM 16MN, 20MN , 20#
Stainless steel ASTM A182, F304/304L, F316/316L
Alloy steel ASTM A182 A182 F12, F11, F22, F5, F9, F91etc.
Flange Standard ANSI Class 150 Flanges-Class 2500 Flanges
DIN 6Bar 10Bar 16Bar 25Bar 40Bar
JIS 5K Flanges-20K Flanges
UNI 6Bar 10Bar 16Bar 25Bar 40Bar
EN 6Bar 10Bar 16Bar 25Bar 40Bar
Flange TYPE 1.Welding neck Flange;;; 2.Slip on
3.Blind flange4.Long welding neck flange
5.Lap joint flange 6.Socket welding
7.Threaded flange 8.Flat flange
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Ancho Rstainless Steel Flange

  • Brand Name Dingyang
  • Material Stainless Steel
  • Surface Finishing Polished
  • Color Silver
  • Application Chemical industry, petroleum industry, construction industry, and so on
  • Size 1-5 Inch, 1/2′ ‘to 80’ ‘.
  • Type Stainless Steel Flanges
  • Country of Origin China

1. Size: 1/2 to 80 .

2. Material: Carbon Steel: A105(N) C22.8 ST-37.2 S400 S440 SQ235(CS20#) A106B A53 Q345Stainless Steel: 304, 304L, 316, 316L, A350 LF2, 321, 347, 347HAlloy Steel: ASTM A182 F1, F5a, F9, F11, F12, F22, F91

3. Pressure: Class150 to 900.PN6, to PN64JIS 5K, 10K, 16K and 20K

4. Standard: ANSI, API, DIN, GOST, BS, AS, JIS, JPI

5. Type: Slip-On, Welding Neck, Blind, Socket Welding, Threaded, Lap Joint, Plate, etc

6. Finish: Transparent oil, rust-proof oil, hot galvanizing

7. Connection: Butt Weld & Socket Weld & Thread

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Blind/bl Steel Flange

  • Brand Name Dingyang
  • Material Stainless Steel
  • Surface Finishing Polished
  • Shape Round
  • Color Silver
  • Application Chemical industry, petroleum industry, construction industry, and so on
  • Size 1-5 Inch
  • Type Stainless Steel Flanges
  • Country of Origin China
Description

1. Size: 1/2 to 80 .

2. Material: Carbon Steel: A105(N) C22.8 ST-37.2 S400 S440 SQ235(CS20#) A106B A53 Q345Stainless Steel: 304, 304L, 316, 316L, A350 LF2, 321, 347, 347HAlloy Steel: ASTM A182 F1, F5a, F9, F11, F12, F22, F91

3. Pressure: Class150, 300, 600, 900.PN6, PN10, PN16, PN25, PN40 and PN64JIS 5K, 10K, 16K and 20K

4. Standard: ANSI, API, DIN, GOST, BS, AS, JIS, JPI

5. Finish: Transparent oil, rust-proof oil, hot galvanize

6. Connection: Butt Weld & Socket Weld & Thread

7. Type: Slip-On, Welding Neck, Blind, Socket Welding, Threaded, Lap Joint, Plate, etc

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Carbon Steel API 5L Seamless Pipe

460 / piece Get Latest Price
  • Brand Name Dingyang
  • Material Stainless Steel Flange, API 5L, API 5CT, ASTM A106/A53, ASTM A519, JIS G 3441, JIS G3444, JIS G3445 DIN 2391, EN10305, EN10210, ASME SA106, SA192, SA210, SA213, SA335, DIN17175, ASTM A179
  • Finishing Polished
  • Color Silver
  • Application Water Treatment Plant, Marine Applications, Construction
  • Certification ISI Certified
  • Country of Origin China
Description
Size OD: 10.3mm 762mm
Thickness: 1.73-63.5mm
Length: 3-12morasrequest
SteelMaterial API 5L, API 5CT, ASTM A106/A53, ASTM A519, JIS G 3441, JIS G3444,
JIS G3445 DIN 2391, EN10305, EN10210, ASME SA106, SA192, SA210, SA213, SA335, DIN17175, ASTM A179
Standard ASTM, ASME, DIN, GB, JIS, ASNI, BS
End Beveled end, plain end meet your need
Usage Used for low pressure liquid delivery, such as water, gas, and oil; construction and piling.
Inspection SGB, BV, LloydsWithHydraulicTesting, EddyCurrent, InfraredTest
Package Packed in bundles with several steel strips, two tags on each bundle.
Delivery LessThan 15/45DaysAccordingToTheQuantity
Port Tianjin, China
Payment L/C, T/T
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Figure 8 Blind Steel Flange

460 / piece Get Latest Price
  • Temperature Rating high Temperature
  • Application Chemical industry, petroleum industry, construction industry, and so on
  • Material Stainless Steel
  • Type Stainless Steel Flange
  • Brand Dingyang
  • Color silver
  • Country of Origin China
Description

1. Size: 1/2 to 80 .

2. Material: Carbon Steel: A105(N) C22.8 ST-37.2 S400 S440 SQ235(CS20#) A106B A53 Q345Stainless Steel: 304, 304L, 316, 316L, A350 LF2, 321, 347, 347HAlloy Steel: ASTM A182 F1, F5a, F9, F11, F12, F22, F91

3. Pressure: Class150, 300, 600, 900.PN6, PN10, PN16, PN25, PN40 and PN64JIS 5K, 10K, 16K and 20K

4.

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Hubbed Threaded Flange

460 / piece Get Latest Price
  • Pressure Rating the service life is far longer than ordinary stainless steel flanges
  • Industry food pharmaceutical petrochemical, municipal water supply and drainage, marine engine
  • Connection Type Stainless Steel Flange,Carbon Steel Flange
  • Size 1/2″-3″
  • Type Stainless Steel Flange
  • Brand Dingyang
  • Material PN0.6MPa-PN42MPa, EN1092-1, BS4504, DIN2502,
  • Color silver
  • Country of Origin China

Description

FF/RF /RTJ
SIZE: 1/2-3
PRESSIRE: PN0.6MPa-PN42MPa
STANDARD : EN1092-1, BS4504, DIN2502
MATERIAL : PN0.6MPa-PN42MPa, EN1092-1, BS4504, DIN2502, 1.4301;1.4406;1.4541;1.4404;1.4571;1.4435; 1.4550;1.4539;1.4462;1.4410

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