Black Phosphate Precision Tube
Main Features: high accuracy, excellent brightness, no oxidization on the outer and inner walls after heat treatment, high cleanness inside wall. The steel tube is able to stand high pressure. No deformation after cold bending, no crack after flaring and flattening . The complicated geometrical forming and machining can be realized. bright black. Color is homogeneously distributed on the tube surface. The tube has good property of antirust.
Main Application: to be used in hydraulic system, automobile and in the occasion where the high precision, brightness, cleanness and mechanical properties of the tube are required.
Sekiranya ada pertanyaan, sila hubungi sales@grandsteeltube.com
- Kelebihan Besar
- Chemical Composition & Mechanical Properties
- Siasatan
1. Production of DIN/EN10305 seamless high precision tubes since 2005.
2. Bekerja dengan pelanggan dari Eropah,Asia Barat,Amerika Utara,Amerika Selatan,etc since 2006.
3. Sampel boleh dihantar dalam 25 hari selepas pengesahan
4. 40 hari sebagai tempoh pengeluaran dan penghantaran selepas pengesahan pesanan.
5. 150,000 meters of seamless steel tubes in stock.
6. 200 saiz boleh ditawarkan dari OD:3mmxWT:0.5mm ke OD:100mmxWT:10Mm
7. Pemeriksaan pihak ketiga seperti:TUV,BV,SGS,dan lain-lain diterima
8. Pasukan profesional membantu keperluan tiub khas anda.
9. Other related tubes: bright annealed tubes,hydraulic steel tube;Dll
Sekiranya ada pertanyaan,anda dialu-alukan untuk menghubungi sales@grandsteeltube.com
Gred | 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 | - |
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 | 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 | 25 |
Sekiranya ada pertanyaan,anda dialu-alukan untuk menghubungi sales@grandsteeltube.com