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Premium Carbon Steel
Pipe Fittings & Flanges

High-quality carbon steel elbows, bends, tees, reducers, caps, and flanges for oil, gas, water, and industrial pipeline systems. Manufactured to ASTM, ANSI, DIN, JIS, and GBT standards with full quality control.

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Who We Are

Cangzhou Xingkui Pipeline Equipment Company Limited, founded in 1998 in Hebei, China, is one of the largest suppliers of carbon steel pipe fittings and flanges. With over 25 years of experience, we specialize in manufacturing high-performance butt weld fittings for global industrial applications.

Our product range includes seamless and welded carbon steel elbows, bends, tees, reducers, caps, and flanges, compliant with international standards such as ASTM, ASME, ANSI, DIN, JIS, and GBT.

ISO-Certified Full-Process Quality Control
OEM & Customized Solutions Available
Exported to 50+ Countries Worldwide
Factory Production Line
Est. 1998

Our Premium Products

High-quality carbon steel pipe fittings built for durability and performance

Carbon Steel Elbow

Carbon Steel Elbow

  • Standard: ANSI B16.9, ASTM A234 WPB
  • Size: 1/2" - 48"
  • Radius: LR (1.5D), SR (1D)
  • Angle: 45°, 90°, 180°
  • Usage: Oil, Gas, Water
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Carbon Steel Bend

Carbon Steel Bend

  • Standard: ASTM A105, DIN 2605
  • Size: 2" - 96"
  • Radius: 2D, 3D, 5D
  • Angle: 90°, Custom Angles
  • Type: Seamless, Welded
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Carbon Steel Tee

Carbon Steel Tee

  • Standard: ASTM B16.9, GBT12459
  • Size: DN15 - DN1200
  • Type: Equal, Reducing
  • Connection: Butt Weld
  • Material: A234 WPB, Q235
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Carbon Steel Reducer

Carbon Steel Reducer

  • Standard: GBT12459, EN10253
  • Type: Concentric, Eccentric
  • Schedule: SCH20 - XXS
  • OD Range: 13.7mm - 1620mm
  • Application: Pipeline Connecting
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Carbon Steel Flange

Carbon Steel Flange

  • Standard: ANSI B16.5, DIN2527
  • Class: 150LB - 1500LB
  • Type: Weld Neck, Slip On, Blind
  • Size: DN10 - DN1000
  • Material: A105, Q235
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Carbon Steel Pipe Cap

Carbon Steel Pipe Cap

  • Standard: ASTM A53, JIS G3472
  • Size: 1/2" - 60"
  • Schedule: SCH10 - SCH80
  • Finish: Galvanized, Black Paint
  • Type: Seamless, Welded
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Seamless Carbon Steel Pipe

Carbon Steel Pipe

  • Standard: API 5L Gr.B, ASTM A53
  • Type: Seamless, ERW, Spiral Welded
  • Schedule: SCH20 - SCH160
  • Diameter: 2mm - 25mm
  • Application: Petroleum, Oil, Gas
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Alloy Steel Flange

Alloy Steel Flange

  • Standard: ANSI B16.48, ASME B16.5
  • Material: NO8800, NO8810, NO8825
  • Type: Socket Weld, Slip On
  • Size: 1" - 48"
  • Class: 150LB, Nickel Base
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View All 400+ Products

Why Choose Us?

Reliable quality, global compliance, and customer-focused service

🔧

Precision Engineering

CNC-controlled manufacturing ensures dimensional accuracy and consistency across all fittings.

🛡️

Full Quality Control

Comprehensive inspection process from raw material to final packaging.

🌍

Global Standards

Products meet ASTM, ANSI, DIN, JIS, GBT, and API specifications.

📦

Export Ready

Robust packaging and logistics for safe delivery to 50+ countries.

25+
Years Experience
400+
Products
50+
Countries Served
10M+
Fittings Delivered

Frequently Asked Questions

What materials do you use for carbon steel fittings?

We use ASTM A234 WPB, A105, Q235, and other carbon steel grades depending on application requirements.

Can you provide OEM/ODM services?

Yes, we offer full OEM and customized solutions including size, material, and packaging.

What certifications do your products have?

Our factory follows ISO quality management systems and products comply with ASTM, ANSI, DIN, JIS, and GBT standards.

What is your production capacity?

We produce over 10,000 tons of pipe fittings annually with advanced automated production lines.

How do you ensure product quality?

We implement full-process quality control from raw material inspection to final product testing including hydrostatic, ultrasonic, and dimensional checks.

Get In Touch

For quotes, technical support, or custom orders, visit our official website to contact us directly.

Visit Official Website to Contact

Cangzhou Xingkui Pipeline Equipment Co., Ltd

Cangzhou City, Hebei Province, China

Work Hours: 0:00 - 23:00 (Beijing Time)

Email: admin@hbyhsteel.com

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