ASTM A135 ERW Conduit Steel Pipe Zinc-Coated EMT/Rmc Electrical Applications CS Pipe

• Customization: Available
• After-sales Service: 24h Onilne Service
• Warranty: 24h Onilne Service
• Type: Welded
• Technique: Cold Drawn
• Material: Carbon Steel
• Surface Treatment: Varnishing
• 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: Round
• Steel Grade 1: 5L/5CT : Gr a-B, X42-X80, J55
• Steel Grade 2: ASTM : Gr a-C GB: Q195-Q345, L245-L555
• Steel Grade 3: En: S275, S275jr, S355jrh, S355j2h
• Od: 60.3-610mm (1/2 - 24")
• Wt: 6.5-60mm
• Length: 5.8-12m
• Certificate: 5L Psl1 / Psl2, ISO 9001-2008
• Process: Electric Resistance Welded Steel Pipe
• Standard: 5CT, ASTM 53, En10217, DIN 2458. Is 35
• Model No.: Electric-Resistance Arc Welding Steel Pipe
• Delivery Time: 7-35 Days
• Usage1: Oil and Gas Transportation, Hydraulic Systems
• Usage2: Mineral Poweder Transportation, High Humidity Area
• Usage3: Marine, Power Station, Construction and Engineer
• Usage4: Chemical/Electrical/Power Industry/Water System
• Transport Package: Packed by Bundles, Plastic Bags, Wooden Case, etc.
• Trademark: EZS
• Origin: China
• Production Capacity: 5000tons/Year

Product Description

Product Description

ASTM A135 ERW Conduit Steel Pipe Zinc-Coated EMT/RMC Electrical Applications CS Pipe

Item	Electric Resistance Welding Steel Pipe
Material	5DP,EN10219,ANSI B36,ASTM A53-2007,ANSI B36
Wall Thickness	6.5-60mm
Length	6m,11.8m,12m,other length is available according to demands
Size	219-2200mm
Surface Treatment	Black Paint, Varnish, Oil, Galvanized, Anti-corrosion coated (3PE,3lpe)
Pipe Ends	Two ends of the beveled ends, plastic, CAPS(small OD), iron protector(large OD), pipe ends with steel support for thin wall
Application	Aetospace, structure pipe, building,etc
Delivery	15-45 Days, It depends on the specific situation and quantity

 

Standard	Grade	Chemical Composition(max)%					Mechanical Properties(min)
		C	Mn	Si	S	P	Yield Strength (Mpa)	Tensile Strength (Mpa)
GB/T700-2006	A	0.22	1.4	0.35	0.050	0.045	235	370
	B	0.2	1.4	0.35	0.045	0.045	235	370
	C	0.17	1.4	0.35	0.040	0.040	235	370
	D	0.17	1.4	0.35	0.035	0.035	235	370
GB/T1591-2009	A	0.2	1.7	0.5	0.035	0.035	345	470
	B	0.2	1.7	0.5	0.030	0.030	345	470
	C	0.2	1.7	0.5	0.030	0.030	345	470
BS En10025	S235JR	0.17	1.4	-	0.035	0.035	235	360
	S275JR	0.21	1.5	-	0.035	0.035	275	410
	S355JR	0.24	1.6	-	0.035	0.035	355	470
DIN 17100	ST37-2	0.2	-	-	0.050	0.050	225	340
	ST44-2	0.21	-	-	0.050	0.050	265	410
	ST52-3	0.2	1.6	0.55	0.040	0.040	345	490
JIS G3101	SS400	-	-	-	0.050	0.050	235	400
	SS490	-	-	-	0.050	0.050	275	490
5L PSL1/PSL2	A	0.22	0.9	-	0.03	0.03	210	335
	B	0.26	1.2	-	0.03	0.03	245	415
	X42	0.26	1.3	-	0.03	0.03	290	415
	X46	0.26	1.4	-	0.03	0.03	320	435
	X52	0.26	1.4	-	0.03	0.03	360	460
	X56	0.26	1.1	-	0.03	0.03	390	490
	X60	0.26	1.4	-	0.03	0.03	415	520
	X65	0.26	1.45	-	0.03	0.03	450	535
	X70	0.26	1.65	-	0.03	0.03	585	570

 

ERW Carbon Steel Pipe Standards & Materials Specification Table

Standard	Grade	Chemical Composition (%) (Max unless noted)	Mechanical Properties	Common Applications
ASTM A53	Gr. A	C≤0.25, Mn≤0.95, P≤0.05, S≤0.045	TS≥330MPa, YS≥205MPa	Plumbing, Structural
	Gr. B	C≤0.30, Mn≤1.20, P≤0.05, S≤0.045	TS≥415MPa, YS≥240MPa	Oil/Gas, Pressure Systems
5L	PSL1 Gr. B	C≤0.26, Mn≤1.20, P≤0.030, S≤0.030	TS≥414MPa, YS≥241MPa	Pipeline Transportation
	PSL2 X42	C≤0.22, Mn≤1.30, CE≤0.43, P≤0.025, S≤0.015	TS≥414MPa, YS≥290MPa (SMYS)	High-Pressure Gas Lines
ASTM A135	Gr. A	C≤0.25, Mn≤0.95, P≤0.035, S≤0.035	TS≥310MPa, YS≥165MPa	Electrical Conduits
EN 10219	S235JR	C≤0.17, Mn≤1.40, P≤0.035, S≤0.035	TS≥360MPa, YS≥235MPa	Construction, Hollow Sections
JIS G3444	STK400	C≤0.30, Mn≤1.20, P≤0.050, S≤0.050	TS≥400MPa, YS≥235MPa	General Purpose Tubing
BS 1387	Medium	C≤0.25, Mn≤1.00, P≤0.050, S≤0.050	TS≥324MPa, YS≥210MPa	Scaffolding, Low-Pressure

 

Our ASTM A135 ERW (Electric Resistance Welded) Conduit Steel Pipes are high-quality, zinc-coated (galvanized) carbon steel pipes designed for electrical conduit applications, including EMT (Electrical Metallic Tubing) and RMC (Rigid Metal Conduit). These pipes comply with ASTM A135 standards, ensuring durability, corrosion resistance, and mechanical strength for protecting electrical wiring in commercial, industrial, and residential installations.

 

Key Features & Benefits

 Compliant with ASTM A135 Standards - Manufactured to meet strict industry requirements for electrical conduit applications.
 Zinc-Coated (Galvanized) for Corrosion Resistance - Extends service life in harsh and humid environments.
 Lightweight & Easy to Install - Suitable for EMT (thin-wall) and RMC (thick-wall) applications.
 Smooth Interior Surface - Facilitates easy wire pulling and reduces friction.
 High Mechanical Strength - Resists bending, crushing, and impact damage.
 Fire-Resistant & Non-Combustible - Enhances safety in electrical systems.
 Wide Range of Sizes - Available in various diameters (1/2" to 6") and lengths (10' to 20').

 

Available Types & Specifications

Type	Wall Thickness	Coating	Common Applications
EMT (Electrical Metallic Tubing)	Thin-wall	Zinc-coated (Galvanized)	Indoor/outdoor wiring, light-duty conduits
RMC (Rigid Metal Conduit)	Thick-wall	Hot-dip galvanized	Heavy-duty industrial, underground, and hazardous locations
IMC (Intermediate Metal Conduit)	Medium-wall	Zinc-coated	General-purpose electrical raceways

Material & Mechanical Properties

• Standard: ASTM A135

• Material: Carbon Steel (CS)

• Surface Treatment: Electro-galvanized or hot-dip galvanized

• Tensile Strength: ≥ 48,000 psi (330 MPa)

• Yield Strength: ≥ 30,000 psi (205 MPa)

• Elongation: ≥ 23%

 

Manufacturing Process

1. Steel Strip Uncoiling & Forming - High-quality carbon steel strip is shaped into a cylindrical form.

2. Electric Resistance Welding (ERW) - Precision welding ensures strong, seamless joints.

3. Sizing & Cutting - Pipes are sized to exact dimensions and cut to required lengths.

4. Galvanizing (Zinc Coating) - Electro-galvanized or hot-dip galvanized for corrosion protection.

5. Inspection & Testing - Hydrostatic testing, visual inspection, and dimensional checks.

6. Packaging - Bundled with protective end caps for safe transportation.

 

Applications

 Commercial & Industrial Wiring - Conduit systems for power distribution.
 Residential Electrical Installations - Protection for in-wall and underground wiring.
 Data Centers & Telecom - Cable management in server rooms.
 HVAC & Lighting Systems - Conduit for control wiring and fixtures.
 Outdoor & Underground Use - Weather-resistant and corrosion-protected.

 

Packaging & Delivery

• Standard Packaging: Bundled with steel straps, plastic end caps for protection.

• Custom Options: Wooden crates, waterproof wrapping for export.

• Delivery Time: 10-25 days (depending on order size and destination).

About EZ STEEL Group

Detailed Photos

Detailed Photos

Workshop Equipment

Production Process

Detecting Department

Packaging & Shipping

 

Application Scope
Construction and Building Industry
Our steel pipes are the foundation of modern construction, providing unparalleled strength and support to structures. Ideal for frameworks and architectural designs, our pipes ensure longevity and resilience in residential, commercial, and infrastructural projects. Choose our steel pipes for their load-bearing capacity and robustness in your next construction endeavor.
Oil and Gas Industry
Engineered to meet the demanding requirements of the oil and gas industry, our steel pipes are indispensable for drilling, transportation, and refinery operations. Featuring high-pressure resistance and superior strength, our seamless pipes are the go-to choice for maintaining pipeline integrity over long distances and challenging conditions.
Chemical Industry
Navigate the complexities of the chemical industry with our specially designed steel pipes, capable of withstanding aggressive substances. Our alloy steel pipes offer unmatched durability and safety for chemical transport, processing, and waste management, ensuring your operations are leak-free and environmentally compliant.

Water Treatment and Supply Industry
Ensure the purity and safety of water systems with our steel pipes. From clean water transportation in stainless steel pipes to robust sewage systems with coated pipes, our solutions are designed for durability and reliability, making them perfect for main supply lines and critical water infrastructure.
Automotive Industry
Elevate your automotive manufacturing with our steel pipes, integral for constructing robust vehicle frames, chassis, and exhaust systems. Their adaptability makes them ideal for hydraulic systems and fluid conduits, contributing to vehicle safety, performance, and longevity.
Energy Industry
Power the future with our steel pipes, essential for energy generation and distribution. Utilized in thermal power plants and renewable energy structures, our pipes guarantee efficiency and stability in power delivery systems, ensuring the robustness of your energy infrastructure.

Machinery and Manufacturing Industry
Our steel pipes are the backbone of machinery and manufacturing, offering precision, strength, and reliability for heavy-duty equipment and industrial tools. Ideal for hydraulic systems and manufacturing processes, our pipes ensure operational efficiency and long-term durability in the most demanding conditions.
Aerospace and Defense Industry
Support cutting-edge aerospace and defense projects with our high-performance steel pipes, crucial for structural integrity, fuel, and hydraulic systems. Our pipes offer an optimal strength-to-weight ratio, essential for the efficiency and safety of aircraft, spacecraft, and military technologies.
Shipbuilding Industry
Our steel pipes are the cornerstone of shipbuilding, providing strength, durability, and corrosion resistance for vessel frameworks, piping systems, and structural components. Designed to withstand the harsh marine environment, our pipes ensure the longevity and safety of your maritime vessels and structures.

Global Business Main Customers

 

Our Advantages

 

Certifications

 

FAQ

Q:  How many days can you deliver after confirmed the order?
A:  For stock:  within 5-7 days;
      For customized product:  around 30 days;
      For special sizes:  subject to negotiation.

Q: How does your company do quality control?
A: ISO 9001:2015 certified;
     Product certificate as per EN10204 3.1 or 3.2 as per customer's request.
    
  
Q: Can I have a factory-visit?
A:  Surely. All customers are welcome to visit us in China.

Q: Can I have a trial order?
A: Of course, it is an honor for us to have the opportunity to show our quality and service. 
 

Company Profile

	Business Type:	Manufacturer/Factory
	Main Products:	Carbon Steel Pipe , Stainless Steel Pipe , Copper Nickel Tube , Heat Exchanger Tube , Boiler ...
	Registered Capital:	2000000 RMB
	Plant Area:	>2000 square meters
	Management System Certification:	ISO 9001, ISO 14001, OHSAS/ OHSMS 18001, ANSI/ESD
	Average Lead Time:	Peak Season Lead Time: 1-3 months Off Season Lead Time: within 15 workdays

SGS Serial NO. :

QIP-ASI199413Report Verification

EZ STEEL INDUSTRIAL Co., Ltd, together with LONG-RUN METALS Co., Ltd, is the export division and window company of EZ STEEL GROUP, which was founded in 1996 and has been committed to the development and manufacturing of industrial tubes in the past 20 years. It is one of the largest steel tube manufacturing enterprise groups in China. The group possess fixed assets over 200million and more than 800 employees with annual production capacity over 300 thousand tons.

The company has continuously introduced the world advanced manufacturing equipment and now is able to produce welded and seamless steel tube, copper tube and nickle alloy tube. We also have our own coating facilities and workshops for further processing. After years of development, EZ STEEL GROUP and the affiliated enterprises have obtained many kinds of domestic and international certifications including ISO 9001 Quality Management System Certification, ISO14000 Environment Management System Certification, CE, License for Manufacture of Pressure Piping in China, etc. The company has obtained good domestic achievements and is the nominated supplier of CNPC and CNOOC. The product are exported to Southeast Asia, the Middle East and Africa, Europe, Australia, North and Latin Americas via trade companies, and are widely used in pipeline works, foundation works, steel structure works, boiler and condenser fabrication, oil refinery plant, power plant, sugar-making plant, ship-building and offshore construction projects etc.

Holding the concept of First-class Brand, First-class Service, First-class Value, EZ STEEL GROUP is aiming to build up a win-win enterprise platform for both our customers and employees.

CONTACT US
Contact: Rosy Xu
EZ STEEL INDUSTRIAL CO., LTD
Add: No.199,  Xiangfu Road, Yuhua Industrial Zone, Changsha City , P.R China 

Pls. do not hesitate to contact me if you have any questions!

You are warm welcomed to visit our factory!!!

Thank you for visiting our products & Looking forward to hearing from you!