DIN2391 ST 37.4 nbk Boiler Tube
Brand Name:TORICH
Certification:ISO
Model Number:DIN2391
Minimum Order Quantity:5 Tons
Delivery Time:30-35days
Payment Terms:L/C, D/P, T/T, Western Union, MoneyGram
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Ningbo Zhejiang China
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Suite 1004, Hongan Plaza, #258 Die Yuan Road, Yinzhou District, Ningbo City, China
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Product Details
DIN2391 ST 37.4 nbk Boiler Tube
Specification Offered For DIN 2391 st37.4 fuel injection steel tube
- Standard: DIN 2391
- Steel grade: ST35, ST37, ST37.4, ST45, ST52, ST52.4
- Size: OD (4-190mm) x WT (0.5-15mm)
- Delivery condition: NBK(+N), GBK(+A), BK(+C), BKW(+LC), BKS(+SR).
- Application: Used in hydraulic system, automobile, locomotive and military industry.
Chemical Composition
Grade | 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 | BK | BKW | BKS | GBK | NBK | |||||||
RmN/mm min | min | RmN/mm min | min | N/mm min | ReH N/mm min | min | N/mm min | min | N/mm min | ReH 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 | Steelnumber | + 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 |
Application :
- Pneumatic cylinder
- Hydraulic cylinder
- Precise machine pipes
- Agriculture machine Boiler construction
Product Pictures:
Packing and Delivery:
FAQ:
Q: Are you trading company or manufacturer ?
A: A professional steel pipes materials inventor, manufacturer and
solution provider
Q: How long is your delivery time?
A: Generally it is 7-14 days if the goods are in stock. or it is
30-60 days if the goods are not in stock, it is according to
quantity.
Q: Do you provide samples of carbon seamless steel tube ? is it
free or extra ?
A: Yes, we could offer the sample for free charge but need pay the
cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30%
T/T in advance ,balance before shippment.
DIN2391 ST 37.4 nbk Boiler Tube
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