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DIN 1629 Seamless Steel Pipe

DIN 1629 seamless steel pipe has three main grades of St37.0, St44.0, St52.0. Generally, the DIN 1629 standard is not limited to the working pressure value, and the working temperature is limited to below 300 ℃.

Classification :

Carbon Steel Pipe

+85255011775

Allen@tpcometal.com

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PRODUCT DETAILS

DIN 1629 Seamless Steel Pipe Description

DIN 1629 seamless steel pipes are circular tubes and pipes made up of non alloy materials for special quality requirements. There are three major grades as DIN 1629 ST 37.0, 44.0 and 52.0. The DIN 1629 Pipe grades differ in the material composition and the mechanical properties. The applications of the different grades of the DIN 1629 include manufacturing pipeline, vessels, equipment, pipe fittings and other applications. The DIN 1629 seamless steel pipe can be hot rolled, cold worked, stress relieved, annealed or normalized for heat treatment to improve the hardness of the products.

Product Parameters

Product Name	DIN 1629 Seamless Steel Pipe
Standard	EN/DIN/JIS/ASTM/BS/ASME/AISI etc.
Outer Diameter	Seamless: 1/4"-36"	Welding: 21.3mm-3620mm
	Round Tube: 1/2"-10"	Square Tube/Rectangular Tube: 15x15mm-400x600mm
Wall Thickness	Seamless: 1.25mm-50mm	Welding: 1.65mm-65mm
Length	3-12 meters, Support customization
Surface Process	Bright, Polished, Black
Other Services	Machining(cnc), Centerless Grinding(cg), Heat Treatment, Annealing, Pickling, Polishing, Rolling, Forging, Cutting, Bending, Small Machining, etc.

Chemical Composition

Grade	Materials No.	Deoxidation Yype	C	P	S	N¹)
St37	1.0254	R	0.17	0.040	0.040	0.009 ²)
St44	1.0255	R	0.21	0.040	0.040	0.009 ²)
St52	1.0421	RR	0.22	0.040	0.035	-

Mechanical Properties

DIN 1629		Yield Strength(Wall Thickness/mm)			Tensile Strength N/² mm	Elongation(%) A5
Grade	Material No.	<16	16-40	40-65	Tensile Strength N/² mm	Vertical	Transverse
St37	1.0254	235	225	216	350²) to 480	25	23
St44	1.0256	275	265 ¹)	255 ¹)	420²) to 550	21	19
St52	1.0421	355	345	335	500²) to 650	21	19

Scope of Application

Seamless steel pipe applications are: chemical plants, vessels, pipeline engineering and general mechanical engineering.

Standard of carbon steel pipe

API 5L	for use in conveying gas, water, and oil in the natural gas and oil industries, and covers seamless and welded steel line pipe.
API 5CT	for casing and tubing
ASTM A53	for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless
ASTM A106	for Seamless Carbon Steel Pipe for High-Temperature Service
ASTM A179	for Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes
ASTM A192	for Seamless Carbon Steel Boiler Tubes for High-Pressure Service
ASTM A213	for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
ASTM A252	for Welded and Seamless Steel Pipe Piles
ASTM A333	for Seamless and Welded Steel Pipe for Low-Temperature Service and Other Applications with Required Notch Toughness
ASTM A672	for Electric-Fusion-Welded Steel Pipe for High-Pressure Service at Moderate Temperatures
ASTM A335	for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service
DIN 17175	seamless steel pipes are used in boiler installations, high-pressure pipelines and tank construction and special machinery for both high temperature and high-pressure devices.
DIN 1629	specifies the Seamless Circular Tubes of Non Alloys Steels with Special Quality Requirements.
DIN 2391	for Cold Drawn High Precision Seamless Tube
DIN 2458	Welded Steel Pipes in Unalloyed and Low Alloy Steels for Supply Purposes
EN 10210	Seamless steel tubes for pressure purposes
BS 3059	Steel boiler and superheater tubes
JIS G3454	Carbon steel pipes for pressure service

PACKING AND SHIPPING

We have our own transportation fleet with the most convenient transportation and timely delivery.The company's products are exported to more than 70 countries and regions in the world, including Europe, America, Germany, South Korea, Indonesia, Bangladesh, etc.

CUSTOMER VISIT

Its products are exported to over 100 countries and regions, with production, sales, and export volumes consistently ranking among the highest in China.

QUALITY INSPECTION

The company has introduced world-leading equipment for ironmaking, steelmaking, tube rolling, tube processing, heat treatment, and non-destructive testing.

FACTORY WORKSHOP

Its 7 rolling facilities cover all 4 types of seamless piperolling equipment, which are MPM, PQF, ASSEL and REM. Among these rolling facilities, the high precision 3-roll continuous rolling mill – PQF (Premium Quality Finishing).

Factory Workshop

APPLICATION AREAS

Pipeline transportation

Aviation and railways

Maritime transport

Petrochemical

Pipeline transportation

Aviation and railways

FAQ

Q1:Can you send samples?

A:Of course, we can provide customers with free samples and express shipping service to all over of the world.

Q2:What product information do I need to provide?

A:Please kindly provide the grade, width, thickness, surface treatment requirement should you have and quantities you need to purchase.

Q3:It's my first time to import steel products, can you help me with it?

A:Sure,we have agent to arrange the shipment, we will do it together with you.

Q4:What about product prices information?

A:Prices various according to periodic price changes of raw materials.

Q5:What ports of shipment are there?

A:Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao, Ningbo ports, you can specify other ports according to your needs.

Q6:What is your terms of payment ?

A:Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shipment or based on BL copy or LC at sight.