Pipa las baja tahan karat adalah jenis pipa yang terbuat dari baja tahan karat yang disambung melalui proses pengelasan pada sambungannya. Pipa ini umumnya digunakan dalam aplikasi yang membutuhkan kekuatan tinggi, daya tahan, dan ketahanan terhadap korosi, seperti dalam pembangunan bejana tekan, penukar panas, dan sistem perpipaan.Proses pembuatan tabung baja tahan karat yang dilas dimulai dengan membentuk lembaran datar baja tahan karat menjadi bentuk tabung. Tepi lembaran tersebut kemudian dipanaskan hingga suhu tinggi dan disatukan menggunakan arus listrik atau sinar berenergi tinggi. Proses ini menghasilkan sambungan yang kuat dan terus menerus sepanjang tabung.
Tabung las baja tahan karat Tersedia dalam berbagai ukuran, ketebalan dinding, dan jenis baja tahan karat, termasuk jenis austenitik, ferritik, dan duplex. Pemilihan jenis dan ketebalan dinding akan bergantung pada aplikasi spesifik serta sifat mekanis yang dibutuhkan dari pipa tersebut.
Daftar Isi:
- Spesifikasi dan Ukurandari Baja Tahan Karat yang Dilas tabung
- Aplikasi dari Baja Tahan Karat yang Dilas tabung
- Jenis-jenis Tabung Baja Tahan Karat yang Dilas
- TABEL TOLERANSI DIAMETER LUAR (OD) DAN TOLERANSI KETEBALAN DINDING PIPA LAS SS
- Sifat Kimia Baja Tahan Karat Pipa las
- Sifat Mekanis Baja Tahan Karat Pipa las
- Rasio Tekanan Tabung Las SSNG
Spesifikasi dan Ukuran dari Baja Tahan Karat yang Dilas tabung
Spesifikasi yang Tersedia
| Nama Produk | Standar Eksekutif | Dimensi | Kode Baja / Kelas Baja |
| Pipa Industri | ASTM A312, A358, A778 JIS G3459 | OD: 1/4 ″ ~ 40 ″ WT: SCH5S ~ SCH80S | TP304, TP304L, TP316L, SUS304TP |
| Tabung untuk Boiler dan Penukar Panas, Tabung Servis Umum | ASTM A249, A269, JIS G3463 | OD: 15.9 ~ 139.8mm WT: 1.6 ~ 5.0mm | TP304, TP304L, TP316L, SUS304TB |
| Tabung Mekanis dan Struktural | ASTM A554, JIS G3446 | OD: 7,9 ~ 152.4mm WT: 0,5 ~ 6.5mm | MT304, MT304L, MT316L, MT430 Grade 201, 202 sesuai dengan STD SUS304 dari pabrik |
| Tabung Persegi | ASTM A554 | OD: 12,7 × 12,7 ~ 150x150mm WT: 0,7 ~ 6.5mm | MT304, MT304L, MT316L, MT430 Grade 201, 202 sesuai STD pabrik |
| Tabung Persegi Panjang | ASTM A554 | OD: 10 × 20 ~ 100x200mm WT: 0,7 ~ 6.5mm | MT304, MT304L, MT316L, MT430 Grade 201, 202 sesuai STD pabrik |
| Tabung Sanitasi | ASTM A270 JIS G3447 | OD: 25.4 ~ 165.2mm WT: 0,8 ~ 3,05mm | TP304, TP304L, TP316L, SUS304TBS |
| Pipa Pengukur Besar untuk Perpipaan Biasa | JIS G3448 | OD: 15.88 ~ 318.5mm WT: 0.8 ~ 3.0mm | SUS304TPD |
| Pipa Diameter Besar | JIS G3468 | OD: 14 ″ ~ 40 ″ WT: SCH5S ~ SCH40S | SUS304TPY |
Aplikasi dari Baja Tahan Karat yang Dilas tabung
Pipa las baja tahan karat digunakan dalam berbagai macam aplikasi, seperti di sektor Minyak & Gas, Kilang Minyak, Petrokimia, Kimia, Pupuk, Tenaga Listrik, Otomotif, Bantalan, serta aplikasi Mekanik dan Struktural.
Jenis-jenis Tabung Baja Tahan Karat yang Dilas
- Pipa Baja Tahan Karat yang Dilas
- Pipa Las SS
- Pipa Baja Tahan Karat ERW
- Pipa SS ERW
- Pipa Baja Tahan Karat Las ASTM A249
- Harga Pipa Las SS di Bengaluru
- Pemasok Pipa Baja Tahan Karat Las ASTM A249 di Thane
- Pengecer Tabung Baja Tahan Karat Las di Dahej
- Pipa Las Baja Tahan Karat AISI
- Pipa Las SS
- Pipa Baja Tahan Karat ASME Tipe ERW
- Pipa SS ERW
- Pipa Baja Tahan Karat AISI yang Dilas
- Pemasok Pipa Las SS di Ankleshwar
- Pemasok Pipa Baja Tahan Karat ERW di Pune
- Produsen Pipa Baja Tahan Karat Las di Hyderabad
TABEL TOLERANSI DIAMETER LUAR (OD) DAN TOLERANSI KETEBALAN DINDING PIPA LAS SS
| Toleransi Diameter Luar (OD) Tabung Baja Tahan Karat yang Dilas | ||||
| NPS | + | – | ||
| inci | mm | inci | mm | |
| 1/8~1 1 /2 > 1 1/2–4 > 4–8 > 8–18 > 18–26 > 26–34 > 34–48 | 1/64(0.015) 1/32(0.031) 1/16(0.062) 3/32(0.093) 1/8(0.125) 5/32(0.156) 3/16(0.187) | 0.4 0.8 1.6 2.4 3.2 4.0 4.8 | 1/32(0.031) 1/32(0.031) 1/32(0.031) 1/32(0.031) 1/32(0.031) 1/32(0.031) 1/32(0.031) | 0.8 0.8 0.8 0.8 0.8 0.8 0.8 |
| NPS | Toleransi Ketebalan Dinding Tabung Baja Tahan Karat, % | |
| + | – | |
| 1/8-2 1 /2 | 20.0 | 12.5 |
| 3–18, t/D ≤ 5% | 22.5 | 12.5 |
| 3–18, t/D > 5% | 15.0 | 12.5 |
| ≥ 20, dilas | 17.5 | 12.5 |
| ≥ 20, tanpa sambungan, t/D ≤ 5% | 22.5 | 12.5 |
| ≥ 20, tanpa sambungan, t/D > 5% | 15.0 | 12.5 |
Sifat Kimia Baja Tahan Karat Pipa las
Komposisi Kimia (Sebagai Referensi)
Spesifikasi JIS
Spesifikasi JIS G4303, G4304, G4305, G4312
| Jenis Baja | C% Maks. | Si% Maks. | Mn% Maks. | P% Maks. | S% Maks. | Cr% Maks. | Ni% Maks. | Mo% Maks. | Ti% Maks. | Lain-lain |
| SUS 201 | 0.15 | 1.0 | 5.5~7.5 | 0.06 | 0.03 | 16.0~18.0 | 3.5~5.5 | – | – | N:0,25 |
| SUS 202 | 0.15 | 1.0 | 7.5~10.0 | 0.06 | 0.03 | 17.0~19.0 | 4.0~6.0 | – | – | N:0,25 |
| SUS 304 | 0.08 | 1.0 | 2.0 | 0.045 | 0.03 | 18.0~20.0 | 8.0~10.5 | – | – | – |
| SUS 304L | 0.03 | 1.0 | 2.0 | 0.045 | 0.03 | 18.0~20.0 | 9.0~13.0 | – | – | Cu: 1,0–3,0 |
| SUS 316L | 0.03 | 1.0 | 2.0 | 0.045 | 0.03 | 16.0~18.0 | 12.0~15.0 | 2.0~3.0 | – | – |
| SUS 430 | 0.12 | 0.75 | 1.0 | 0.04 | 0.03 | 16.0~18.0 | – | – | – | – |
Sifat Mekanis Baja Tahan Karat Pipa las
Sifat Mekanis (Sebagai Referensi)
Spesifikasi JIS
Spesifikasi JIS G4303, G4304, G4305, G4312
| Jenis Baja | N/mm 2 MIN. Tegangan Tarik | N/mm 2 MIN. Tegangan Bukti | Perpanjangan MIN. | HRB MAX. Kekerasan | Kemampuan ditekuk: Sudut tekukan | Kelenturan: Jari-jari bagian dalam |
| SUS 201 | 520 | 275 | 40 | 100 | Tidak Diperlukan | – |
| SUS 202 | 520 | 275 | 40 | 95 | Tidak Diperlukan | – |
| SUS 304 | 520 | 205 | 40 | 90 | Tidak Diperlukan | – |
| SUS 304L | 480 | 175 | 40 | 90 | Tidak Diperlukan | – |
| SUS 316L | 480 | 175 | 40 | 90 | Tidak Diperlukan | – |
| SUS 430 | 450 | 205 | 22 | 88 | 180° | 1,0 kali ketebalannya |
NILAI TEKANAN PIPA LAS SS
| OD inci | Rata-rata ketebalan dinding dalam inci | Kekuatan Leleh Minimum (PSI) | Kekuatan Tarik Minimum (PSI) | Tekanan Ledakan Teoritis * (PSI) | Tekanan Kerja (PSI) 25% Tekanan Pecah | Titik Leleh Teoritis ** (PSI) | Tekanan Lipat *** (PSI) |
| 0.250 | 0.020 | 30,000 | 75,000 | 14,286 | 3,571 | 5,714 | 4,416 |
| 0.250 | 0.028 | 30,000 | 75,000 | 21,649 | 5,412 | 8,660 | 5,967 |
| 0.250 | 0.035 | 30,000 | 75,000 | 29,167 | 7,292 | 11,667 | 7,224 |
| 0.250 | 0.049 | 30,000 | 75,000 | 48,355 | 12,089 | 19,342 | 9,455 |
| 0.250 | 0.065 | 30,000 | 75,000 | 81,250 | 20,313 | 32,500 | 11,544 |
| 0.375 | 0.020 | 30,000 | 75,000 | 8,955 | 2,239 | 3,582 | 3,029 |
| 0.375 | 0.028 | 30,000 | 75,000 | 13,166 | 3,292 | 5,266 | 4,145 |
| 0.375 | 0.035 | 30,000 | 75,000 | 17,213 | 4,303 | 6,885 | 5,077 |
| 0.375 | 0.049 | 30,000 | 75,000 | 26,534 | 6,634 | 10,614 | 6,816 |
| 0.375 | 0.065 | 30,000 | 75,000 | 39,796 | 9,949 | 15,918 | 8,597 |
| 0.500 | 0.020 | 30,000 | 75,000 | 6,522 | 1,630 | 2,609 | 2.304 L |
| 0.500 | 0.028 | 30,000 | 75,000 | 9,459 | 2,365 | 3,784 | 3,172 |
| 0.500 | 0.035 | 30,000 | 75,000 | 12,209 | 3,052 | 4,884 | 3,906 |
| 0.500 | 0.049 | 30,000 | 75,000 | 18,284 | 4,571 | 7,313 | 5.304 L |
| 0.500 | 0.065 | 30,000 | 75,000 | 26,351 | 6,588 | 10,541 | 6,786 |
| 0.500 | 0.083 | 30,000 | 75,000 | 37,275 | 9,319 | 14,910 | 8,307 |
| 0.625 | 0.020 | 30,000 | 75,000 | 5,128 | 1,282 | 2,051 | 1,859 |
| 0.625 | 0.028 | 30,000 | 75,000 | 7,381 | 1,845 | 2,953 | 2,568 |
| 0.625 | 0.035 | 30,000 | 75,000 | 9,459 | 2,365 | 3,784 | 3,172 |
| 0.625 | 0.049 | 30,000 | 75,000 | 13,947 | 3,487 | 5,579 | 4,335 |
| 0.625 | 0.065 | 30,000 | 75,000 | 19,697 | 4,924 | 7,879 | 5,591 |
| 0.625 | 0.083 | 30,000 | 75,000 | 27,124 | 6,781 | 10,850 | 6,910 |
| 0.625 | 0.095 | 30,000 | 75,000 | 32,759 | 8,190 | 13,103 | 7,734 |
| 0.625 | 0.109 | 30,000 | 75,000 | 40,172 | 10,043 | 16,069 | 8,639 |
| 0.750 | 0.028 | 30,000 | 75,000 | 6,052 | 1,513 | 2,421 | 2,156 |
| 0.750 | 0.035 | 30,000 | 75,000 | 7,721 | 1,930 | 3,088 | 2,669 |
| 0.750 | 0.049 | 30,000 | 75,000 | 11,273 | 2,818 | 4,509 | 3,664 |
| 0.750 | 0.065 | 30,000 | 75,000 | 15,726 | 3,931 | 6,290 | 4,749 |
| 0.750 | 0.083 | 30,000 | 75,000 | 21,318 | 5,330 | 8,527 | 5,905 |
| 0.750 | 0.095 | 30,000 | 75,000 | 25,446 | 6,362 | 10,179 | 6,637 |
| 0.750 | 0.109 | 30,000 | 75,000 | 30,733 | 7,683 | 12,293 | 7,453 |
| 0.750 | 0.120 | 30,000 | 75,000 | 35,294 | 8,824 | 14,118 | 8,064 |
| 0.875 | 0.020 | 30,000 | 75,000 | 3,593 | 898 | 1,437 | 1,340 |
| 0.875 | 0.028 | 30,000 | 75,000 | 5,128 | 1,282 | 2,051 | 1,859 |
| 0.875 | 0.035 | 30,000 | 75,000 | 6,522 | 1,630 | 2,609 | 2.304 L |
| 0.875 | 0.049 | 30,000 | 75,000 | 9,459 | 2,365 | 3,784 | 3,172 |
| 0.875 | 0.065 | 30,000 | 75,000 | 13,087 | 3,272 | 5,235 | 4,126 |
| 0.875 | 0.083 | 30,000 | 75,000 | 17,560 | 4,390 | 7,024 | 5,152 |
| 0.875 | 0.095 | 30,000 | 75,000 | 20,803 | 5,201 | 8,321 | 5,807 |
| 0.875 | 0.109 | 30,000 | 75,000 | 24,886 | 6,221 | 9,954 | 6,543 |
| 0.875 | 0.120 | 30,000 | 75,000 | 28,346 | 7,087 | 11,339 | 7,100 |
| 1.000 | 0.028 | 30,000 | 75,000 | 4,449 | 1,112 | 1,780 | 1,633 |
| 1.000 | 0.035 | 30,000 | 75,000 | 5,645 | 1,411 | 2,258 | 2,027 |
| 1.000 | 0.049 | 30,000 | 75,000 | 8,149 | 2,037 | 3,259 | 2,796 |
| 1.000 | 0.065 | 30,000 | 75,000 | 11,207 | 2,802 | 4,483 | 3,647 |
| 1.000 | 0.083 | 30,000 | 75,000 | 14,928 | 3,732 | 5,971 | 4,567 |
| 1.000 | 0.095 | 30,000 | 75,000 | 17,593 | 4,398 | 7,037 | 5,159 |
| 1.000 | 0.109 | 30,000 | 75,000 | 20,908 | 5,227 | 8,363 | 5,827 |
| 1.000 | 0.120 | 30,000 | 75,000 | 23,684 | 5,921 | 9,474 | 6,336 |
| 1.000 | 0.134 | 30,000 | 75,000 | 27,459 | 6,865 | 10,984 | 6,963 |
| 1.250 | 0.035 | 30,000 | 75,000 | 4,449 | 1,112 | 1,780 | 1,633 |
| 1.250 | 0.049 | 30,000 | 75,000 | 6,380 | 1,595 | 2,552 | 2,260 |
| 1.250 | 0.065 | 30,000 | 75,000 | 8,705 | 2,176 | 3,482 | 2,958 |
| 1.250 | 0.083 | 30,000 | 75,000 | 11,485 | 2,871 | 4,594 | 3,719 |
| 1.250 | 0.095 | 30,000 | 75,000 | 13,443 | 3,361 | 5,377 | 4,213 |
| 1.250 | 0.109 | 30,000 | 75,000 | 15,843 | 3,961 | 6,337 | 4,776 |
| 1.250 | 0.120 | 30,000 | 75,000 | 17,822 | 4,455 | 7,129 | 5,207 |
| 1.250 | 0.134 | 30,000 | 75,000 | 20,468 | 5,117 | 8,187 | 5,742 |
| 1.500 | 0.035 | 30,000 | 75,000 | 3,671 | 918 | 1,469 | 1,367 |
| 1.500 | 0.049 | 30,000 | 75,000 | 5,243 | 1,311 | 2,097 | 1,896 |
| 1.500 | 0.065 | 30,000 | 75,000 | 7,117 | 1,779 | 2,847 | 2,487 |
| 1.500 | 0.083 | 30,000 | 75,000 | 9,333 | 2,333 | 3,733 | 3,136 |
| 1.500 | 0.095 | 30,000 | 75,000 | 10,878 | 2,719 | 4,351 | 3,559 |
| 1.500 | 0.109 | 30,000 | 75,000 | 12,754 | 3,188 | 5,101 | 4,043 |
| 1.500 | 0.120 | 30,000 | 75,000 | 14,286 | 3,571 | 5,714 | 4,416 |
| 1.500 | 0.134 | 30,000 | 75,000 | 16,315 | 4,079 | 6,526 | 4,881 |
| 1.500 | 0.148 | 30,000 | 75,000 | 18,439 | 4,610 | 7,375 | 5,336 |
| 1.750 | 0.035 | 30,000 | 75,000 | 3,125 | 781 | 1,250 | 1,176 |
| 1.750 | 0.049 | 30,000 | 75,000 | 3,864 | 966 | 1,546 | 1,434 |
| 1.750 | 0.065 | 30,000 | 75,000 | 6,019 | 1,505 | 2,407 | 2,146 |
| 1.750 | 0.083 | 30,000 | 75,000 | 7,860 | 1,965 | 3,144 | 2,711 |
| 1.750 | 0.095 | 30,000 | 75,000 | 9,135 | 2,284 | 3,654 | 3,080 |
| 1.750 | 0.109 | 30,000 | 75,000 | 10,672 | 2,668 | 4,213 | 3,504 |
| 1.750 | 0.120 | 30,000 | 75,000 | 11,921 | 2,980 | 4,768 | 3,832 |
| 1.750 | 0.134 | 30,000 | 75,000 | 13,563 | 3,391 | 5,425 | 4,242 |
| 1.750 | 0.148 | 30,000 | 75,000 | 15,268 | 3,817 | 6,107 | 4,645 |
| 1.750 | 0.165 | 30,000 | 75,000 | 17,430 | 4,357 | 6,972 | 5,124 |
| 2.000 | 0.035 | 30,000 | 75,000 | 2,720 | 680 | 1,088 | 1,032 |
| 2.000 | 0.049 | 30,000 | 75,000 | 3,864 | 966 | 1,546 | 1,434 |
| 2.000 | 0.065 | 30,000 | 75,000 | 5,214 | 1,303 | 2,086 | 1,887 |
| 2.000 | 0.083 | 30,000 | 75,000 | 6,788 | 1,697 | 2,715 | 2,387 |
| 2.000 | 0.095 | 30,000 | 75,000 | 7,873 | 1,968 | 3,149 | 2,715 |
| 2.000 | 0.109 | 30,000 | 75,000 | 9,175 | 2,294 | 3,670 | 3,092 |
| 2.000 | 0.120 | 30,000 | 75,000 | 10,227 | 2,557 | 4,091 | 3,384 |
| 2.000 | 0.134 | 30,000 | 75,000 | 11,605 | 2,901 | 4,642 | 3,751 |
| 2.000 | 0.148 | 30,000 | 75,000 | 13,028 | 3,257 | 5,211 | 4,111 |
| 2.000 | 0.165 | 30,000 | 75,000 | 14,820 | 3,705 | 5,928 | 4,542 |
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