DIN1629 Steel Pipe

DIN 1629

DIN1629 is a standard for seamless steel pipes issued by the German Standardization Organization. The standard specifies the size, material, mechanical properties, chemical composition and inspection methods of seamless steel pipes in detail, providing unified guidance for the production and use of steel pipes.

Our steel pipe products are produced in strict accordance with DIN1629 standard specifications and are made of non-alloyed steel with the main grades St 37.0, St44.0 and St52.0. Support three-party testing to ensure high quality and high performance of products.

DIN1629 PDF Download

DIN1629 Specification

The DIN1629 seamless carbon steel tubes produced by Pandapipe Manufacturing are manufactured to strict standards. Has a very comprehensive product specifications. Can provide welding, bending, drilling, punching and other pipeline processing. And square cutting, bevel cutting, thread cutting, groove cutting and other end types. A variety of surface finishing services are also available.

Experience the superior quality of our DIN1629 Seamless Carbon Steel Pipe, a product that stands out in the market for its exceptional performance and durability. Crafted from unalloyed steels, the main grades of our product are St 37.0, St44.0, and St52.0. These pipes are extensively used in chemical plants, vessel construction, pipework, and general mechanical engineering. With no limiting working pressure values and a working temperature below 300℃, our pipes are designed to meet high performance requirements. Our DIN1629 ST 52 is a low-cost Low Carbon Steel Tube with a maximum of 0.22% carbon content, making it easy to form and shape. It’s not just hard, but also has high tensile properties, making it ideal for structural components.

Standard	DIN1629
Procedure	SMLS
Dimensions	10.2mm – 660mm
	1/8″ – 26″
	DN6 – DN800
Thickness	1.8mm – 30mm
Unit Length	6 meters, 12 meters or customized.
Steel Grade	DIN 1629 St37.0
	DIN 1629 St44.0
	DIN 1629 St52.0
Surface Coating	Varnishing, Black, Oiling, Hot Dip Galvanizing
End Type	Square cut, Bevelled, Threaded, Grooved
Joint Method	Fitting, Flange, Coupling, Clamp, Pipe Shoulder, Welding
Pipe Machining	Welding, Bending, Hole Drilling, Punching, Swaging, Tapering, Flaring, Expanding

Steel Grades in DIN1629

The steel grades used in our DIN1629 Seamless Carbon Steel Pipe include St 37.0, St44.0, and St52.0. These unalloyed steels are known for their strength, durability, and performance. The St 52.0 grade, in particular, is a low-cost Low Carbon Steel with a maximum of 0.22% carbon content. It is not only hard but also has high tensile properties, making it ideal for structural components. These steel grades ensure that our pipes deliver the best performance in various applications.

DIN1629 St37.0

DIN1629 St37.0 steel pipe has a minimum yield strength of 235MPa. Din1629 st37.0 steel pipe has a minimum yield strength of 235mpa. The content of C in the chemical composition is less than 0.17%, and the content of other elements such as P and S also has corresponding regulations.

DIN1629 St44.0

DIN1629 St44.0 steel pipe has a minimum yield strength of 255MPa. Din1629 ST44.0 steel pipe has a minimum yield strength of 255mpa. The content of C in the chemical composition is less than 0.21%, and the content of other elements such as P and S is also stipulated accordingly.

DIN1629 St52.0

DIN1629 St52.0 steel pipe has a minimum yield strength of 355 mpa. Din1629 ST52.0 steel pipe has a minimum yield strength of 355 mpa. The content of C in the chemical composition is less than 0.22%, while it contains a certain amount of Si and Mn elements, and the content of other elements such as P and S is also regulated accordingly.

DIN1629 Dimension Table

Here is the size table of DIN1629 pipe provided by Pandapipe. The chart information includes various sizes and specifications of pipe. As well as steel pipe inside and outside diameter, length, wall thickness and other detailed information. Our size chart will guide you to the right product. We can also provide flexible personalization according to your project needs.

DIN1629 Dimension Table

Mechanical Requirements of DIN1629

We manufacture DIN1629 seamless steel pipe products to meet the mechanical performance requirements. Ensure high performance and durability of steel pipes. These include yield strength, tensile strength and so on. The pipeline is also designed to withstand high operating pressures and temperatures up to 300 ° C. Its mechanical properties make it suitable for various welding methods, including gas fusion welding, arc welding, flash butt welding, voltage welding and gas pressure welding.

Steel Grade		Upper Yield Stress ReH For Wall Thickness，in mm			Tensile Strength Rm	Elongation After Fracture
Steel Grade		up to 16	Over 16 up to 40	Over 40 up to 65	Tensile Strength Rm	Longitudinal	Transverse
Symbol	Material Number	N/mm2 min			N/mm2	% min
St 37.0	1.0254	235	225	215	350 to 480	25	23
St 44.0	1.0256	275	265	255	420 to 550	21	19
St 52.0	1.0421	355	345	335	500 to 650	21	19

Chemical Requirements of DIN1629

Pandapipe manufactures high performance steel pipe products in strict accordance with the chemical composition requirements of the DIN1629 standard. The chemical composition includes a carbon content of up to 0.22%, which makes the pipe easy to form. At the same time, other elements are also strictly controlled to ensure the hardness, strength and weldability of the pipeline.

Steel Grade		Chemical Composition % by Mass
Symbol	Material Number	Type of Deoxidization（R，Killed（Including Semi-Killed）RR，Fully Killed）	C	P	S	N	Addition of Nitrogen Fixing Elements（e.g.not less than 0.020%Altotal）
St 37.0	1.0254	R	0.17	0.04	0.04	0.009	–
St 44.0	1.0256	R	0.21	0.04	0.04	0.009	–
St 52.0	1.0421	RR	0.22	0.04	0.035	–	Yes

DIN1629 Dimension Table

Outside Diameter	Tube Thickness （mm）
mm	1.6	1.8	2	2.3	2.6	2.9	3.2	3.6	4.0	4.5	5	5.6	6.3	7.1	8.0	8.8	10	11	12.5	14.2	16	17.5	20	22.2	25	28	30	32	36	40	45	50	55	60	65	70	75	80	85	90	100
10.2	●	●	●	●	●
13.5		●	●	●	●	●	●	●
16		●	●	●	●	●	●	●	●
17.2		●	●	●	●	●	●	●	●	●
19			●	●	●	●	●	●	●	●	●
20			●	●	●	●	●	●	●	●	●
21.3			●	●	●	●	●	●	●	●	●
25			●	●	●	●	●	●	●	●	●	●	●
25.4			●	●	●	●	●	●	●	●	●	●	●
26.9			●	●	●	●	●	●	●	●	●	●	●	●
30				●	●	●	●	●	●	●	●	●	●	●
31.8				●	●	●	●	●	●	●	●	●	●	●	●
33.7				●	●	●	●	●	●	●	●	●	●	●	●
38					●	●	●	●	●	●	●	●	●	●	●	●
42.4					●	●	●	●	●	●	●	●	●	●	●	●	●
44.5					●	●	●	●	●	●	●	●	●	●	●	●	●	●
48.3					●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
51					●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
54					●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
57						●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
60.3						●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
63.5						●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
70						●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
73						●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
76.1						●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
82.5							●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
88.9							●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
101.6								●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
108								●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
114.3								●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
127									●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
133									●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
139.7									●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
152.4										●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
159										●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
168.3										●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
177.8											●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
193.7												●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
219.1													●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
244.5													●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
273													●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
323.9														●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
355.6															●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
406.4																●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
457																	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
508																		●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
559																			●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
610																			●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●
660																				●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●

Application of DIN1629

Steel manufacturing: DIN 1629 standard is widely used in the production and quality control of seamless steel pipes.
Machinery and equipment manufacturing: The application of DIN 1629 standard enables the machinery and equipment manufacturing industry to obtain high-quality seamless steel pipes, improving the overall performance and reliability of machinery and equipment.
Chemical equipment manufacturing industry: DIN 1629 standard seamless steel pipe products with corrosion resistance, high temperature and high pressure resistance and other properties, to ensure the normal operation of chemical equipment and safe production.

Application of DIN1629

1.What are the common brands of DIN 1629 standard pipes?

The common old grades of DIN 1629 pipes are St 37.0 and St 44.0, which correspond to the European standard grade P235GH.

2.What is the difference betweenDIN 1629 and ASTM A106 ？

DIN1629 is the European standard and ASTM A106 is the American standard. Both of these pipe standards are used for seamless carbon steel pipes for high temperature and high pressure. Although they are not equivalent standards, they are generally interchangeable.

3. DIN1629 Steel Pipe PDF Free Download

DIN1629 Steel Pipe PDF Click here to download for free

DIN1629 Steel Pipe

DIN 1629

DIN1629 Specification

Steel Grades in DIN1629

DIN1629 Dimension Table

Mechanical Requirements of DIN1629

Chemical Requirements of DIN1629

DIN1629 Dimension Table

Application of DIN1629

Application of DIN1629

1.What are the common brands of DIN 1629 standard pipes?

2.What is the difference betweenDIN 1629 and ASTM A106 ？

3. DIN1629 Steel Pipe PDF Free Download

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