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DIN 2391 seamless tube

Country of Origin︰China
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Product Description
EN10305-1 / DIN2391 EN10305-2 / DIN2393
EN10216-1 / DIN1629 EN10216-2 / DIN17175

 

EN 10305-1 / DIN 2391
Precision cold drawn seamless steel tube
Application: for Atuo;for machinery use; Oil cylinder tube; Motorcycle shock reducer steel tubes; Auto shock reducer inner cylinder.
Size(mm): O.D.:10-324mm ; W.T.:1-30mm; L：max 14000
 

Grade and Chemical Composition(%):
Brand Chemical Composition(%)
C max Si max Mn P max S max
St 35 0.17 0.35 ≥0.40 0.025 0.025
St 45 0.21 0.35 ≥0.40 0.025 0.025
St 52 0.22 0.55 ≤1.60 0.025 0.025
Steel grade Chemical Composition(%)
Steel name Steel number C max Si max Mn P max S max Al min
E215 1.0212 0.10 0.05 0.70 0.025 0.025 0.025
E235 1.0308 0.17 0.35 1.20 0.025 0.025 -
E355 1.0580 0.22 0.55 1.60 0.025 0.025 -
 

Mechanical Properties(Mpa):
Steel grade BKW BK BKS GBK NBK
Tensile Strength ReH N/mm min Elongation% min Tensile Strength ReH N/mm min Elongation% min Tensile Strength ReH N/mm min Yield strength Rm N/mm min Elongation % mi Tensile Strength ReH N/mm min Elongation % min Tensile Strength ReH N/mm min Yield strength Rm N/mm min Elongation % min
St35 480 6 420 10 420 315 14 315 25 340-470 235 25
St45 580 5 520 8 520 375 12 390 21 440-570 255 21
St52 640 4 580 7 580 420 10 490 22 490-630 355 22
Steel grade Minimum values for the delivery condition
Steel name Steel   number + C + LC + SR + A + N
Rm Mpa A% Rm  Mpa A% Rm   Mpa ReH   Mpa A% ReH Mpa A% Rm  Mpa ReH   Mpa A%
E215 1.0212 430 8 380 12 380 280 16 280 30 290-430 215 30
E235 1.0308 480 6 420 10 420 350 16 315 25 340-480 235 25
E355 1.0580 640 4 580 7 580 450 10 450 22 490-630 355 22

 

EN10305-2 / DIN2393
Precision cold drawn seamless steel tube
Application: For the manufacturing of the boiler, economizer, reheater, and steam pipe.
Size(mm): O.D.:16-219mm ; W.T.:1-21mm; L：max 14000
 

Grade and Chemical Composition(%):
Brand Chemical Composition(%)
C max Si max Mn P max S max
St 35 0.17 0.35 ≥0.40 0.025 0.025
St 45 0.21 0.35 ≥0.40 0.025 0.025
St 52 0.22 0.55 ≤1.60 0.025 0.025
Steel grade Chemical Composition(%)
Steel name Steel number C max Si max Mn P max S max Al min
E215 1.0212 0.10 0.05 0.70 0.025 0.025 0.025
E235 1.0308 0.17 0.35 1.20 0.025 0.025 -
E355 1.0580 0.22 0.55 1.60 0.025 0.025 -
 

Mechanical Properties(Mpa):
Steel grade BKW BKW BKS GBK NBK
Tensile Strength ReH N/mm min Elongation% min Tensile Strength ReH N/mm min Elongation% min Tensile Strength ReH N/mm min Yield strength Rm N/mm min Elongation % mi Tensile Strength ReH N/mm min Elongation % min Tensile Strength ReH N/mm min Yield strength Rm N/mm min Elongation % min
St35 480 6 420 10 420 315 14 315 25 340-470 235 25
St45 580 5 520 8 520 375 12 390 21 440-570 255 21
St52 640 4 580 7 580 420 10 490 22 490-630 355 22
 
Steel grade Minimum values for the delivery condition
Steel name Steel   number + C + LC + SR + A + N
Rm Mpa A% Rm  Mpa A% Rm   Mpa ReH   Mpa A% ReH Mpa A% Rm  Mpa ReH   Mpa A%
E215 1.0212 430 8 380 12 380 280 16 280 30 290-430 215 30
E235 1.0308 480 6 420 10 420 350 16 315 25 340-480 235 25
E355 1.0580
 		 640 4 580 7 580 450 10 450 22 490-630 355 22
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