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DIN 17172-78 Steel Ppes For Pipe Lines

DIN 17172-78 Steel Ppes For Pipe Lines

These conditions of delivery apply to seamless and to welded pipes made from the unalloyed and low alloy steels specified in Table 1 for the construction of longdistance pipelines

Description

1.Chemical composition 


GradeMfg.processChemical composition %

(max)

Si

(max)

Mn

P

(max)

S

(max)

NiCrMo
As Rolled or normalized steel
StE210.7S,E,A0.170.450.35min0.0400.035---
StE240.7S,E,A0.170.450.40min0.0400.035---
StE290.7S,E,A0.220.450.50-1.100.0400.035---
StE320.7S,E,A0.220.450.70-1.300.0400.035---
StE360.7S,E,A0.220.550.90-1.500.0400.035---
StE385.7S,E,A0.230.551.00-1.500.0400.035---
StE415.7S,E,A0.230.551.00-1.500.0400.035---

2.Mechanical property



Grade

Material

 number

Min Yield
point
Tensile
 strength
Remarks
(similar to JIS)

Possibility 

temperature

StE210.7
1.0307205325-440(STPG370)
StE240.71.0457235370-490-
StE290.71.0484275420-540-
StE320.71.0409325460-580-
StE360.71.0582360510-630-
StE385.71.8970380530-680-
StE415.71.8972410550-770-



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