ASTM A53/A106 Seamless/Welded Carbon Steel Pipe 10#/20#/35#/45# in Stock China Supply

• Customization: Available
• After-sales Service: Oversea After-Sales Service
• Warranty: Confirm with The Sellers
• Model NO.: ASTM A53 ASTM A106 API 5L
• Type: Seamless
• Technique: Hot Rolled
• Material: Carbon Steel
• Surface Treatment: Polished
• 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
• Products: Supplier Manufacturing Price Per Kg DIN 2448 ASTM
• Standard Specifications: ASTM A106 ASTM a 53 M ASTM a 106m
• Steel Grade1: L245b, L290 X42, L320 X46 , L360 X52
• Steel Grade2: Q235 = S235 / A53 Grade B / A500 Grade a
• Main Process: Cold-Formed Seamless
• Wt: 1.25mm - 50mm Sch10,Sch40,Sch60,Xs,Sch80,Std,Xxs
• Od: 13.72-1000mm
• Length: 0.5m-20m
• Ends: Square Ends/Plain Ends
• Delivery: 7-35 Days
• Surface: Pickled, Bright Annealed, Polished
• Package: Packed by Bundles, Plastic Bags, Wooden Case,etc
• Usage 1: Pipeline Transport, Boiler Pipe, Hydraulic/Automob
• Usage 2: General Structure and Mechanical,Structure Purpose
• Usage 3: Electronics, Industrial, Food, Boiler,Chemical
• Transport Package: Seaworthy Package
• Specification: 0.8mm-25mm
• Trademark: EZ Steel
• Origin: China
• HS Code: 73043110
• Production Capacity: 500000/Year

Product Description

ASTM A53/A106 Seamless/Welded Carbon Steel Pipe 10#/20#/35#/45# in Stock China Supply

 

 

ASTM / ASME

Product Name	Executive Standard	Dimension (mm)	Steel Code / Steel Grade
Black and Hot-Dipped Zinc-Coated Seamless Steel Pipes	ASTM A53	Ø10.3~1200 x WT1.0~150	Gr.A, Gr.B, Gr.C
Seamless Carbon Steel Pipes for High Temperature Service	ASTM A106	Ø10.3~1200 x WT1.0~150	Gr.B, Gr.C
Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes	ASTM A179	Ø10.3~426 x WT1.0~36	Low Carbon Steel
Seamless Carbon Steel Boiler Tubes for High Pressure	ASTM A192	Ø10.3~426 x WT1.0~36	Low Carbon Steel
Seamless Cold-Drawn Intermediate Alloy Steel Heat-Exchanger and Condenser Tubes	ASTM A199	Ø10.3~426 x 1.0~36	T5, T22
Seamless Medium-Carbon Steel Boiler and Superheater Tubes	ASTM A210	Ø10.3~426 x WT1.0~36	A1, C
Seamless Ferritic and Austenitic Alloy Steel Boiler, Superheater and Heat-Exchanger Tubes	ASTM A213	Ø10.3~426 x WT1.0~36	T5, T9, T11, T12, T22, T91
Seamless Carbon and Alloy Steel for Mechanical Tubing	ASTM A333	Ø1/4"~42" x WT SCH20~XXS	Gr.1, Gr.3, Gr.6
Seamless and Welded Carbon Steel Pipes and Alloy Steel Pipes for Low Temperature Use	ASTM A334	Ø1/4"~4" x WT SCH20~SCH80	Gr.1, Gr.6
Seamless Cold-Drawn Carbon Steel Feedwater Heater Tubes	ASTM A556	Ø10.3~426 x WT1.0~36	A2, B2

 

Product Name	seamless Steel Pipe
Standard	API5L, ASTM A106 Gr.B, ASTM A53 Gr.B, ASTM A270, ASTM A249, ASTM A511,ASTM A778 ,ASTM A312,ASTM A358,ASTM A409,ASTM A213,ASTM A790,ASTM A268,ASTM A269,ASTM A554,ASTM B338,ASTM B673,ASTM B674,ASTM B677,ASTM B675, ASTM B676, ASTM B690,ASTM A928,ASMEB36.19,ASMEB36.10,ASTMA179/A192/A213/A210/370WP91,WP1,WP2
	GB5310-2009,GB3087-2008,GB6479-2013,GB9948-2013,GB/T8163-2008, GB8162-2008,GB/T17396-2009
	EN10216-5,EN10217-7,DIN 17456,DIN 17458
	JIS G3463,JIS G3119,JIS G3446,JIS G3218,JIS G3258,JIS G3448,JIS H4631
	DEP 31,DEP 40,DEP 20,DEP 32,DNV-OS-F101
Grade	Q195 = S195 / A53 Grade A
	Q235 = S235 / A53 Grade B / A500 Grade A / STK400 / SS400 /ST42.2
	Q345 = S355JR / A500 Grade B Grade C
Length	5.8~12.0 m or as customized
Surface Treatment	Prime quality (bared, oiled, color paint, 3LPE, or other anti-corrosive treatment)
Inspection	With Chemical Composition and Mechanical Properties Analysis;
	Dimensional and Visual Inspection, also with Nondestructive Inspection.
Application	Structure, Electric power transmission tower projects, Piling, Water, Oil & gas pipeline engineering, Mechanical industry, Municipal projects, Roads and its auxiliary facilities, etc.

Chemistry Composition

C, %	Mn, %	P, %	S, %
0.30 max	0.40-1.06	0.025 max	0.025 max

Mechanical Properties

Tensile Strength , MPa	Yield Strength, MPa	Elongation, %	Hardness, HB
380 min	205 min	35 min	163 max

Outside Diameter & Tolerance

Hot rolled	Outside Diameter, mm	Tolerance, mm
	OD≤101.6	+0.4/-0.8
	101.6	+0.4/-1.2
	190.5	+0.4/-1.6
Cold Drawn	Outside Diameter , mm	Tolerance, mm
	OD<25.4	±0.10
	25.4≤OD≤38.1	±0.15
	38.1	±0.20
	50.8≤OD<63.5	±0.25
	63.5≤OD<76.2	±0.30
	76.2≤OD≤101.6	±0.38
	101.6	+0.38/-0.64
	190.5	+0.38/-1.14

Wall thickness & Tolerance

Hot rolled	Outside Diameter , mm	Tolerance, %
	OD≤101.6, WT≤2.4	+40/-0
	OD≤101.6, 2.4	+35/-0
	OD≤101.6, 3.8	+33/-0
	OD≤101.6, WT>4.6	+28/-0
	OD>101.6, 2.4	+35/-0
	OD>101.6, 3.8	+33/-0
	OD>101.6, WT>4.6	+28/-0
Cold Drawn	Outside Diameter , mm	Tolerance, %
	OD≤38.1	+20/-0
	OD>38.1	+22/-0

 

ASTM A53 & ASTM A106 are widely used carbon steel pipe standards for general-purpose and high-temperature service in industries such as oil & gas, construction, water transmission, and structural applications.

Our stock includes seamless (SMLS) and welded (ERW) pipes in Grades 10#, 20#, 35#, and 45#, ensuring high strength, durability, and cost-effectiveness for various industrial needs.

 

Key Features & Benefits

 High-Quality Material - Made from carbon steel (10#, 20#, 35#, 45#) for superior strength.
 Multiple Manufacturing Methods - Seamless (A106) & Welded (A53 ERW) options available.
 Wide Size Range - NPS 1/8" to 24", Schedule 10 to XXS.
 Pressure & Temperature Resistance - Suitable for high-pressure steam, water, and gas lines.
 Ready Stock in China - Fast delivery, no long lead times.

 

Material Grades Comparison

Grade	Carbon Content	Tensile Strength	Yield Strength	Common Applications
10#	Low Carbon (0.07-0.14%)	≥335 MPa	≥205 MPa	Low-pressure fluid transport, structural use
20#	Medium Carbon (0.17-0.24%)	≥415 MPa	≥240 MPa	Boiler tubes, general piping
35#	Medium-High Carbon (0.32-0.40%)	≥485 MPa	≥275 MPa	Machinery parts, high-strength components
45#	High Carbon (0.42-0.50%)	≥590 MPa	≥335 MPa	Shafts, gears, high-stress applications

 

Standards & Specifications

• ASTM A53 - Covers welded (ERW) & seamless (Type S) carbon steel pipes for general use.

• ASTM A106 - Seamless only, designed for high-temperature service (up to 750°F / 400°C).

• ASME B36.10M - Standard dimensions for welded & seamless pipes.

• Testing - Hydrostatic, ultrasonic (UT), eddy current (ET), mechanical & chemical testing available.

 

Available Types & Finishes

• Seamless (SMLS) - Smoother interior, higher pressure resistance.

• Electric Resistance Welded (ERW) - Cost-effective for low/medium-pressure applications.

• Black / Galvanized (A53 only) - Anti-corrosion zinc coating available.

• Bevelled Ends / Threaded Ends - Ready for welding or fittings.

 

Applications

• Oil & Gas Pipelines (Transmission, drilling)

• Water & Sewage Systems

• Boiler & Heat Exchanger Tubes

• Structural & Construction Use (Scaffolding, support columns)

• Mechanical & Automotive Components

 

Why Choose Our Carbon Steel Pipes?

 Competitive Factory Price - Direct supply from China, no intermediaries.
 Large Stock Availability - Immediate shipment for urgent orders.
 Full Compliance - MTC, ISO 9001, SGS inspection available.
 Customization - Cut-to-length, special coatings, marking, and packaging.

 

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!