DIN 1630

tubo d'acciaio senza saldatura_tubo di linea API 5L senza saldatura

DIN 1630 Carbon Steel Seamless Pipes Supplier in China

Panoramica dello standard:
DIN 1630 is a German standard that specifies high-performance carbon steel seamless pipes and tubes. It sets delivery conditions for high-quality, seamless, round, non-alloy steel tubes. DIN 1630 has been mostly withdrawn. It has been replaced by EN 10305-1, a European standard for precision steel tubes. However, DIN 1630 is still referenced for older or legacy applications.

Materiali principali:
Carbon Steel. Specifically, it covers low-carbon steel pipes with different carbon contents:

  • St 37.4 grade: carbon content up to 0.17%, manganese content down to 0.35%
  • St 52.4 grade: carbon content up to 0.22%, manganese content up to 1.60%

Applicazioni:
DIN 1630 steel pipes are used in high-performance, high-quality environments, including:

  • Chemical plant construction
  • Container manufacturing
  • General mechanical engineering purposes
  • Hydraulic systems (seamless hydraulic carbon steel pipes)

Why Choose UNIASEN DIN 1630 Carbon Steel Pipe?

  • Our DIN 1630 seamless carbon steel pipes are made from non-alloy steel. They are seamless, round, and designed for high-performance use.
  • With no limits on working pressure, these pipes are flexible for many uses. They can withstand temperatures up to 300 degrees Celsius. So, they are a reliable choice for demanding environments.
  • Our ST37.4 steel grade is particularly popular for its excellent mechanical properties and versatility. This steel grade meets high-performance standards. It is ideal for building chemical plants, vessels, pipelines, and for general mechanical engineering.
  • Our DIN 1630 seamless carbon steel pipes have detailed specs. They include dimensions, production procedures, steel grades, surface coatings, end types, joint methods, and processing services.
  • We have the perfect solution for you. Whether you need large-diameter pipes for high flow rates or small-diameter pipes for precision applications.

DIN1630 Pipe Standard Specifications

Standard DIN1630
Procedura SMLS
Dimensioni 10.3mm -660mm
  1/8″ – 26″
  DN6-DN650
Spessore 1.73mm – 65mm
  3 - 12 metri
Grado di acciaio St 37.4
  St 44.4
  St 52.4
Rivestimento di superficie Black lacquer coating,Varnishing, Oiling, Hot Dip Galvanizing
  FBE, 2PP, 3PP, 2PE, 3PE
Tipo di estremità Liscio, smussato, filettato, scanalato, a spalla.
Metodo congiunto Raccordo, flangia, accoppiamento, morsetto, spalla del tubo, saldatura
Lavorazione di tubi Saldatura, curvatura, foratura, punzonatura, imbutitura, rastrematura, svasatura, dilatazione

Dimensione

All'esterno
Diametro		 Spessore del tubo (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 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●

Requisiti chimici

High performance seamless circular unalloyed steel tubes
Grado Material
Numero		 Chemical Composition % Proprietà meccaniche
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
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

Requisiti meccanici

High performance seamless circular unalloyed steel tubes
Grado Material
Numero		 Chemical Composition % Proprietà meccaniche
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
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

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