DIN1630 Steel Pipe

DIN1630 Pipe

DIN1630 is a standard published by the German Standardization Organization for seamless cold-drawn and hot-rolled round steel pipes. The standard covers the requirements for the material, size, manufacturing process, steel grade, chemical composition and mechanical properties of the pipe. The DIN1630 standard steel pipes from Pandapipe support tripartite certification, ensuring high quality and high performance products.

PANDAPIPE DIN1630 Specification

DIN1630 seamless carbon steel pipe with comprehensive specifications. Pandapipe’s production processes strictly follow the highest industry standards, ensuring the quality and durability of the pipes. We offer a wide range of steel grades and support a variety of end types and connection methods to meet the specific installation needs of your project. In addition, pandapipe also provides you with flexible and personalized processing services.

Standard	DIN1630
Procedure	SMLS
Dimensions	10.3mm -660mm
	1/8″ – 26″
	DN6-DN650
Thickness	1.73mm – 65mm
Thickness	3 – 12 mtrs
Steel Grade	St 37.4
	St 44.4
	St 52.4
Surface Coating	Black lacquer coating,Varnishing, Oiling, Hot Dip Galvanizing
Surface Coating	FBE, 2PP, 3PP, 2PE, 3PE
End Type	Plain, Bevelled, Threaded, Grooved，Shouldered
Joint Method	Fitting, Flange, Coupling, Clamp, Pipe Shoulder, Welding
Pipe Machining	Welding, Bending, Hole Drilling, Punching, Swaging, Tapering, Flaring, Expanding

Steel Grades in DIN1630

DIN1630 St37.4

DIN1630 St37.4 steel pipe has a minimum yield strength of 235MPa. DIN1630 St37.4 steel pipe is suitable for general mechanical structures and some low pressure fluid transfer systems.

DIN1630 St44.4

DIN1630 St44.4 steel pipe has a minimum yield strength of 275MPa. DIN1630 St44.4 steel pipe is suitable for structural parts subjected to large static and dynamic loads, and low temperature environmental conditions.

DIN1630 St52.4

DIN1630 St52.4 steel pipe has a minimum yield strength of 355 mpa. High strength, DIN1630 St52.4 steel pipe is suitable for applications where strength and wear resistance are required. For example, heavy machinery manufacturing, automobile manufacturing axle, transmission shaft and hydraulic cylinder and so on.

DIN1630 Dimension Table

Here is the size table of DIN1630 pipe provided by Pandapipe. The table contains details of the outer diameter, wall thickness, length and weight of the DIN1630 seamless steel pipe. At the same time, pandapipe can provide you with a personalized service to ensure that seamless tubes can perfectly fit your project.

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	22.7	25	28	30	32	36	40	45	50	55	60	65
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																				●	●	●	●	●	●	●	●	●	●	●	●	●	●	●	●

Chemical Requirements of DIN1630

Pandapipe offers to manufacture DIN1630 seamless carbon steel tubes in strict compliance with the chemical composition required by the standard. By carefully balancing the chemical elements of the pipe, including carbon, silicon, manganese, phosphorus, sulfur and nitrogen, mechanical properties such as strength, ductility and hardness are provided. Rest assured that even in extreme conditions, the pipes deliver the performance you need.

Grade	Material Number	Chemical Composition %					Mechanical Properties
		C max.	Mn max.	P max.	S max.	Si max.	U.T.S Mpa （min.）	Y.S.Mpa （min.）	El%		Impact Energy V Notch J
		C max.	Mn max.	P max.	S max.	Si max.	U.T.S Mpa （min.）	Y.S.Mpa （min.）	Longi.	Tranv.	Longi.	Tranv.
St 37.4	1.0255	0.170	≥0.35	0.040	0.040	0.035	350 to 480	235	25	23	43	27
St 44.4	1.0257	0.200	≥0.40	0.040	0.040	0.035	420 to 550	275	21	19	43	27
St 52.4	1.0581	0.220	≤1.60	0.040	0.035	0.550	500 to 650	355	21	19	43	27

Mechanical Requirements of DIN1630

The DIN1630 seamless steel pipe products manufactured by Pandapipe not only meet the specified elongation and other values, but also undergo tensile tests, yield tests and other tests. Ensure the high performance and durability of the steel pipe. And passed the certification of international standards, to ensure the pressure and load capacity of the pipe.

Grade	Material Number	Chemical Composition %					Mechanical Properties
		C max.	Mn max.	P max.	S max.	Si max.	U.T.S Mpa （min.）	Y.S.Mpa （min.）	El%		Impact Energy V Notch J
		C max.	Mn max.	P max.	S max.	Si max.	U.T.S Mpa （min.）	Y.S.Mpa （min.）	Longi.	Tranv.	Longi.	Tranv.
St 37.4	1.0255	0.170	≥0.35	0.040	0.040	0.035	350 to 480	235	25	23	43	27
St 44.4	1.0257	0.200	≥0.40	0.040	0.040	0.035	420 to 550	275	21	19	43	27
St 52.4	1.0581	0.220	≤1.60	0.040	0.035	0.550	500 to 650	355	21	19	43	27

Application of DIN1630

Piping of hydraulic system: DIN1630 steel pipe can withstand high pressure, impact, and has good bending deformation ability.
Construction machinery and railway locomotives: The excellent performance of DIN1630 steel pipes can meet the requirements of stability and durability of piping systems.
Aerospace and Marine: Environmental conditions in the aerospace and Marine sector are extremely harsh. DIN1630 steel tubes are resistant to extreme temperatures and pressures.

FAQs：

1. What common types of steel pipes are covered by DIN 1630?
It primarily covers two types of non-alloy steel pipe: DIN 1630 St 33.2 / EN 10255 S235 and DIN 1630 St 37.4 / EN 10255 S275.

2. What is the difference between DIN 1630 and DIN 2440 / DIN 2441?
DIN 1630 is more suitable for pipes that transport fluids requiring tightness, while DIN 2440 / DIN 2441 is more suitable for structural applications requiring mechanical strength.

3. DIN 1630 PDF free download
Click here to download DIN1630 PDF for free