Factory Wholesale Alloy ERW Welded Square Hollow Section Steel Pipes Hot Rolled Surface DIN Standard Structural Use Grade

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Product Description

Basic Information
Technique
Cold Rolled/Cold Formed/Hot Finished/Cold Drawn
Shape
Round, Square, Rectangular
Surface Treatment
Ba/2b/No.1/No.3/No.4/8K/Hl/2D/1d
Special Use
High-strength Steel Plate, Wear Resistant Steel, Silicon Steel
Length
1-12m or Customizable
Thickness
6-3000mm or Customizable
Diameter
1/2"-8" (21.3-219.1mm)
Tolerance
±1%
HS Code
7306309000
Capacity
50,000,000 Tons
Alloy Steel Pipe Banner
Product Description
Alloy Steel Pipes Introduction: As core adaptive piping for high-end equipment manufacturing and harsh working conditions, our alloy steel pipes are produced from premium raw materials and advanced rolling technologies.

Integrating multiple advantages including high strength, resistance to extreme temperatures, and corrosion resistance, we provide customized pipe solutions for the chemical, energy, machinery, and high-end equipment industries. We cover core categories such as chromium-molybdenum alloy pipes, manganese-vanadium alloy pipes, and stainless alloy pipes.

Alloy Steel Pipe Sample 1
Alloy Steel Pipe Sample 2
Alloy Steel Pipe Sample 3
Superior Precision

Uniform wall thickness and precise inner diameter. Dimensional tolerances strictly adhere to international standards.

Mechanical Performance

High tensile strength, yield strength, and impact resistance for extreme high/low temperature conditions.

Durability

Outstanding corrosion resistance, oxidation resistance, and wear resistance in acid-alkali media.

Main Application Fields
Chemical Industry New Energy Industry Mechanical Equipment Oil & Gas Industry Automotive Industry Aerospace Support

Our products are widely used in high-temperature reactors, hydraulic pipes for wind power, high-pressure oil pipes for engineering machinery, and exploration equipment fittings.

Customizable Materials by Standards
National Standard (GB): 16Mn, Q345 Series, Q355B/C/D/E, 20Cr, 40Cr, 15CrMo, 42CrMo
German (DIN) & European (EN): E355, St52, S355JR, S355J2, 42CrMo4, 16MnCr5, P355GH
Japanese (JIS): SCr440, SCM415, SCM440, SNCM220, SMn420
American (ASTM/SAE): Gr50, Gr65, 4130, 4140, 8620, 4340
Field Test & Quality Control
Field testing and quality inspection
Product Catalog
Stamping Parts
Stamping Parts
Mechanical Parts
Mechanical Parts
Shaped Steel
Shaped Steel
Steel Bar
Steel Bar
Steel Pipe
Steel Pipe
Steel Plate
Steel Plate
Production Facility
Frequently Asked Questions
Q: What metal materials and related services can you provide?
A: We supply a full range of metal materials including steel pipes, plates, and profiles, alongside integrated services such as precision machining and metal stamping for a one-stop solution.
Q: What is your Minimum Order Quantity (MOQ)?
A: The MOQ varies by product. For standard products, it is usually 500 units. However, we accept small-batch trial orders of 1-100 units for quality verification.
Q: Which international quality standards do your products comply with?
A: Our products comply with ASTM, DIN, JIS, and ISO standards. We can also provide certification for EU REACH, RoHS, or US FDA based on target market requirements.
Q: Do you provide OEM/ODM customization services?
A: Yes, we support OEM/ODM models. We can customize dimensions, material grades, and surface treatments based on your technical drawings.
Q: What are the typical production lead times?
A: In-stock standard products ship within 48 hours. Mass production takes 10-15 working days, while customized products generally take 15-30 working days.
Q: How do you handle after-sales technical or quality issues?
A: Our after-sales team provides 24/7 support. We respond quickly with solutions such as maintenance or replacement based on the actual situation to protect your interests.

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