Corrosion Resistance Custom Seamless Carbon Steel Tube for Mechanical Structural Components

• Customization: Available
• Type: Seamless
• Technique: Hot Rolled,Extruded
• Model NO.: Seamless Steel Tube
• Material: Carbon Steel, Alloy Steel
• Surface Treatment: Hot Rolled, Galvanized, Polished, Coated
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
• Section Shape: Square
• Thickness: 3-100mm
• Diameter: 6-500mm
• Length: 6m, 9m, 12m or Customized
• Processing Services: Cutting, Polishing, Drilling
• Technique Type: Cold Drawn, Hot Rolled, Forged
• Surface: Prime Original Surface, Galvanized or Coated
• Product Category: Steel Pipe & Tube
• Standards (Main): ASTM, DIN, JIS, GB/T, En, BS, GOST
• Transport Package: Standard Exporting Package
• Specification: 6-500mm
• Trademark: ZENGZE
• Origin: Tianjin, China
• Production Capacity: 10000tons/Year

Product Description

Product Description

SEAMLESS STEEL PIPE & TUBE — HIGH-INTEGRITY TUBING FOR PRESSURE, HEAT, AND CRITICAL SERVICE

Seamless steel pipe/tube is manufactured through piercing and rolling, extrusion, and cold drawing/cold rolling processes to produce a weld-free tube body with no longitudinal seam.

Compared with welded pipe, seamless pipe typically offers higher pressure resistance, improved structural integrity, and more reliable performance in demanding conditions such as high temperature, corrosion, and cyclic stress.

It is widely specified and sourced as carbon steel seamless pipe, alloy seamless steel tube, and stainless steel seamless pipe, and frequently purchased by standard and grade such as ASTM A106 Gr.B, ASTM A53, ASTM A335 P11/P22/P91, ASTM A213/A179, and 5L seamless line pipe (PSL2).

Buyers commonly define requirements using a practical format: material + standard/application + manufacturing process + OD/WT/Length, ensuring the right tube for pipeline, boiler, heat exchanger, hydraulic, and oil & gas projects.

Specification

Product Name	Alloy Steel Pipe/Tube (Seamless)
Keywords	Seamless Steel Tube
Product Category	Steel Pipe & Tube
Manufacturing Process	Hot Rolled, Cold Drawn, Hot Expanded, Cold Rolled
Standards (Main)	ASTM, DIN, JIS, GB/T, EN, BS, GOST
ASTM Standards	ASTM A335, A213, A312, A519, A53, A106, A269, A778, A789
DIN/EN/BS Standards	DIN 17175, DIN 17456/17457/17459, EN 10216, EN 10210, BS 3605, BS 3059, BS 1387
JIS/GOST/GB Standards	JIS G3459, JIS G3463, JIS G3444, JIS G3445, GOST 8731/8732/9941, GB/T 5310, GB/T 8162, GB/T 8163, GB/T 3077
Alloy Steel Grades (Examples)	Q345B/C/D/E, 16Mn, 12CrMoV, 12Cr1MoV, 15CrMo, P11/P12/P22/P91/P92/P122, 10CrMo910, 13CrMo44
Stainless Steel Grades (Examples)	200/300/400 Series (201/304/316/321/310 Etc.), Duplex 2205/2507, 904L, UNS S31803, UNS S32750
Nickel Alloy Grades (Examples)	Inconel 600/625/718/X-750, Incoloy 800/825/925, Monel 400/K-500, Hastelloy C276/C22/B2
Carbon/Structural Grades (Examples)	10#/20#/45#, Q235/Q345/Q195/Q215, A53/A106B, 5L, ST37/ST52

Functional Advantages

WELD-FREE STRENGTH & SAFETY

Seamless construction eliminates a longitudinal weld seam, helping deliver stronger pressure-bearing capability and improved reliability for critical piping systems.

HIGH PRESSURE CAPABILITY FOR DEMANDING SERVICE

Designed for applications that require stable performance under high internal pressure, including industrial piping, power generation, and hydraulic circuits.

OPTIONS FOR HIGH-TEMPERATURE PERFORMANCE (ALLOY GRADES)

Alloy seamless pipes (e.g., Cr-Mo series and heat-resistant grades) are suitable for high-temperature steam lines, superheaters, and reheaters where heat resistance is essential.

CORROSION RESISTANCE CHOICES (STAINLESS & DUPLEX)

Stainless steel seamless pipe/tube (e.g., 304/L, 316/L, 321, 347, duplex 2205/2507) provides strong corrosion resistance for chemical processing, fluid handling, and harsh environments.

Core Applications

OIL & GAS PIPELINES ( 5L SEAMLESS LINE PIPE)

Used for oil, gas, and fluid transportation pipelines, including 5L PSL2 seamless line pipe for demanding transmission and gathering systems.

OCTG & FIELD PIPING (SEAMLESS CASING / PETROLEUM TUBING)

Applied in oilfield environments as seamless casing pipe and supporting high-reliability lines in upstream and midstream operations.

POWER GENERATION & BOILERS (HIGH PRESSURE BOILER TUBE)

Ideal for boiler systems such as superheaters, reheaters, and high-pressure steam piping, where temperature and pressure performance are critical.

HEAT EXCHANGERS & CHEMICAL PROCESSING

Used in heat exchangers, reactors, and chemical fluid transport pipelines, where corrosion resistance (stainless/duplex/nickel alloy) and integrity matter.

HYDRAULIC SYSTEMS & CYLINDERS (HYDRAULIC SEAMLESS TUBING)

Commonly selected for hydraulic cylinder tubing and hydraulic piping, especially where precision and consistent wall thickness support sealing and durability.

MECHANICAL STRUCTURE & MACHINED COMPONENTS

Suitable for mechanical structure pipes, machined parts, and industrial equipment where strength and consistency are required.

MARINE, SHIPBUILDING & PRESSURE PIPING

Used for ship pressure pipelines and shipboard heat exchange systems, supporting reliability in harsh marine environments.

CONSTRUCTION & GENERAL INDUSTRIAL PIPING

Applied in building and industrial projects for fluid transport and structural uses, selected according to service conditions and applicable standards.

Company Profile

WELCOME TO TIANJIN ZENGZE
Why You Should Choose Us?

Tianjin Zengze Steel Trading Co. Ltd. is awell-established enterprise engaged in the steelndustry in China, with an annual sales volume ofover 10 million tons. Guojie has built considerablenfluence within the steel sector.

As a comprehensive enterprise integratingsales, processing,cutting and transportation,we are committed to delivering one-stop steelprocurement services for global clients. Mainproducts: Steel Plate/Sheet, Galvanized SteelCoil, PPGl, Beam Steel, Steel Pipe/Tube, AluminumPlate/sheet, Lead Plate/sheet

FAQ

Q1: Are you a factory or a trader?
A: We are a manufacturer integrating industry and trade. Welcome to visit our company.
 
Q2: Can I add my LOGO to the product?
A: We support on-demand customization, including LOGO customization, color customization, appearance size customization, etc.
 
Q3: What payment methods do you support?
A: We support T/T, Western Union, PayPal, cash, etc. The details can be negotiated.
 
Q4: What are your modes of transportation?
A: We usually choose the appropriate mode of transportation (sea, air, land) according to the conditions of the goods, or we can choose the mode of transportation according to your requirements.
 
Q5: How can I get an accurate quotation?
A: You can first send your specific demand information and product pictures, and we will customize a solution for you according to your needs and inform you of the specific price.