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DIN 1629 Seamless steel heavy wall tubes, mat. St 52.0 Equivalents
Material Number : 1.0421, DIN .EN ST52 , P355T1 ,
DIN 1629 Seamless steel heavy wall tubes, mat. St 52.0 Material Chemical composition
Standard | Grade | C | Si | Mn | P max | S max |
DIN1629 | St52 | ≤0.22 | ≤0.55 | ≤1.60 | 0.04 | 0.035 |
By DIN 1629 /DIN2391 Part 2
Delivery Condition : BK
Condition | Tensile Strength Rm (Mpa) | Yield Strength R2 (Mpa) | Elongation in 2 in or 50 mm A(%) |
+AR | 500-650 | 355 min | 22 / 19 min |
+C | 640 min | / | 4 min |
+SR | 580 min | 450 min | 10 min |
+A | 450 min | / | 22 min |
+N | 500-630 min | 355 min | 22 / 19 min |
+AR: Hot Finished, +C or BK: Cold Finished(hard) , +SR or BKS: Cold finished and Stress –relieved, +A or GBK: Annealed, +N or NBK: Normalized.
The tubes come with square cut and deburred ends.
ST52 seamless Pipe Certification:
The product is supplied with 3.1.B inspection certificate, according to the standards EN 10204 and ISO 10474.
ST 52 Steel Pipe are marked in indelible ink, the details being repeated along the entire length of each tube and on a label, as follows:
Manufacturer’s trademark – manufacturing standard – dimensions -steel grade – supply condition – cast no. – item number.
ST 52 Steel come in strapped bundles. The minimum weight of each bundle is 2000kg; the maximum bundle weight being 5000kg, with a minimum of 4 pieces