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DIN 2391 / EN10305-1 Precision Seamless Steel Tube / Pipe for duct connector
QuickDetail:
1) Standard: DIN2391, EN10305-1, EN10305-4
2) Steel grade: St35, St37, St45, St52, E235, E355
3) Condition: GBK(+A)NBK(+N), BK(+C), BKS
4) Size: OD3-60mm. WT0.5-8mmMax length 12meters.
5) All steel tube can test Ultrasonic flaw detector, Eddy current flaw detector, depend on customers requirement
6) Usage: Cylinders of machinery, high pressure tubing, automotive etc.
Description:
Alloy Steel:
20Cr/AISI5120/Scr420/20Cr4;30CrMo/AISI4130/SCM430/25CrMo4
40Cr/AISI5140/Scr440/41Cr
Standard:
ChinaStandardGB8162-2008,GB3639-2000
AmericanStandardASTMA106,ASTMA519,ASTMA513,ASTMA179
GermanyStandardDIN2391,DIN2445
JapaneseStandardJISG3445etc
Applications:
We,thistypeseamlesssteelpipebewidelyusedinkindsofindustries:
| Grade and Chemical Composition(%) | ||||||||||||||||||||||||
| Grade | Chemical Composition(%): | |||||||||||||||||||||||
| C max | Si (max) | Mn (min) | 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(max) | P (max) | S (max) | Al (min) | |||||||||||||||||
| E215 | 1.0212 | 0.1 | 0.05 | 0.7 | 0.025 | 0.025 | 0.025 | |||||||||||||||||
| E235 | 1.0308 | 0.17 | 0.35 | 1.20 | 0.025 | 0.025 | - | |||||||||||||||||
| E355 | 1.058 | 0.22 | 0.55 | 1.60 | 0.025 | 0.025 | - | |||||||||||||||||
| Mechanical Properties(Mpa) | ||||||||||||||||||||||||
| Steel grade | BK | BKW | BKS | GBK | NBK | |||||||||||||||||||
| RmN/mm | min | RmN/mm | min | N/mm | ReH | min | N/mm | min | N/mm | ReH | min | |||||||||||||
| min | min | min | N/mm | min | min | N/mm | ||||||||||||||||||
| min | 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 | 235 | 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 | |||||||||||
