| Jenis pembayaran: | L/C,D/P,T/T |
| Inkoterm: | CFR,EXW,CIF,FOB |
| Transportasi: | Ocean,Land,Express |
| Pelabuhan: | Tianjin,Shanghai,Qingdao |
Model No: DIN2391 St35 St45 St52
Standar: KERIUHAN
Bahan: ST35-ST52
Bentuk Bagian: Bulat
Tempat Asal: Cina
Aplikasi: Pipa Fluida, Pipa Boiler, Pipa Struktur, Pipa Hidrolik
Proses Produksi: Ditarik Dingin
Sertifikasi: ce
Apakah Paduan: Apakah Paduan
Toleransi: ± 1%
Kategori: Pipa Baja Seamless
Layanan Pengolahan: Pemotongan, Meninju, Dekorasi, Pengelasan, Pembengkokan
| Menjual unit | : | Ton |
| Tipe paket | : | Kemasan Marinir Standar, atau sebagaimana disyaratkan oleh Pelanggan |
| Contoh pada gamba | : |
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DIN2391 Tabung baja presisi yang mulus
DIN 2391 Standar Menentukan tabung baja mulus yang digunakan untuk mekanik dan mobil.
Produk utama dari kelas baja / baja: DIN2391-1 (ST35, ST45, ST52).
DIN2391 Bagian 2 menentukan dimensi untuk tabung baja presisi yang sudah jadi dan mulus dan akan digunakan bersama dengan DIN2391 Part2 yang menyatakan kondisi pengiriman teknis yang relevan. Ukuran pilihan yang tercantum dalam standar terutama digunakan dalam rekayasa mekanik dan otomotif.
Di mana tabung baja dimensi yang ditentukan dalam standar ini adalah untuk mematuhi kondisi pengiriman teknis yang tercantum dalam subklausa 1.2 dari DIN 2391 Bagian 2.
DIN 2391 Aplikasi tabung presisi mulus - digunakan dalam silinder hidrolik & pneumatik, rekayasa mekanik dan otomotif.
| Standard | Grade | Chemical Components (%) | |||||
| Symbol | Material No. | C | Si | Mn | P | S | |
| DIN2391 | St 30 Si | 1.0211 | ≤0.10 | ≤0.10 | ≤0.55 | ≤0.025 | ≤0.025 |
| St 30 Al | 1.0212 | ≤0.10 | ≤0.05 | ≤0.55 | ≤0.025 | ≤0.025 | |
| St 35 | 1.0308 | ≤0.17 | ≤0.35 | ≥0.40 | ≤0.025 | ≤0.025 | |
| St 45 | 1.0408 | ≤0.21 | ≤0.35 | ≥0.40 | ≤0.025 | ≤0.025 | |
| St 52 | 1.058 | ≤0.22 | ≤0.55 | ≤1.60 | ≤0.025 | ≤0.025 | |
Tabung harus diproduksi dari proses yang ditarik dingin atau dingin. Tabung harus disediakan dalam salah satu kondisi pengiriman sebagai berikut:
| Designation | Symbol | Description |
| Cold finished (hard) | BK | Tubes do not undergo heat treatment following the final cold forming and thus, have a rather high resistance to deformation. |
| Cold finished (soft) | BKW | The final heat treatment is followed by cold drawing involving limited deformation. Appropriate further processing allows a certain degree of cold forming (e.g. bending, expanding). |
| Cold finished and stress-relieved | BKS | Heat treatment is applied following the last cold forming process. Subject to appropriate processing conditions, the increase in the residual stresses involved enables both forming and machining to a certain degree. |
| Annealed | GBK | The last cold forming process is followed by annealing in a controlled atmosphere. |
| Normalized | NBK | The last cold forming process is followed by annealing above the upper transformation point in a controlled atmosphere. |
Simbol Kondisi Pengiriman sesuai dengan EN10305 dan DIN2391.
| Symbol in accordance with EN 10305 | Symbol in accordance with DIN2391 |
| +C | BK |
| +LC | BKW |
| +SR | BKS |
| +A | GBK |
| +N | NBK |
| Steel Grade | Minimum values for the delivery condition | ||||||||||||
| Steel Name | Steel Number | BK | BKW | BKS | GBK | NBK | |||||||
| Rm | A % | Rm | A % | Rm | ReH | A % | Rm | A % | Rm | ReH | A % | ||
| Mpa | Mpa | Mpa | Mpa | Mpa | Mpa | Mpa | |||||||
| St 30 Si | 1.0211 | 430 | 8 | 380 | 12 | 380 | 280 | 16 | 280 | 30 | 290 to 420 | 215 | 30 |
| St 30 Al | 1.0212 | 430 | 8 | 380 | 12 | 380 | 280 | 16 | 280 | 30 | 290 to 420 | 215 | 30 |
| St 35 | 1.0308 | 480 | 6 | 420 | 10 | 420 | 315 | 14 | 315 | 25 | 340 to 470 | 235 | 25 |
| St 45 | 1.0408 | 580 | 5 | 520 | 8 | 520 | 375 | 12 | 390 | 21 | 440 to 570 | 255 | 21 |
| St 52 | 1.0580 | 640 | 4 | 580 | 7 | 580 | 420 | 10 | 490 | 22 | 490 to 630 | 355 | 22 |
| Inspection or test types | Test frequency | |
| Internal test | Acceptance test | |
| Chemical analysis | M | M |
| Tensile testing | M | One per tested batch |
| Flattening test or extension test | M | Two per tested batch |
| Dimension verification | M | M |
| Visual inspection | M | M |
| NDT in order to identify leaks | Individual | Individual |
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