ASTM A214 Carbon Steel Heat Exchanger Perlawanan Listrik Pipa Dilas
Rincian produk
baja karbon Tabung
,Penukar panas tabung
ASTM A214 Saldo penukar panas dan tabung kondensor baja karbon bertentangan listrik
Aplikasi: untuk boiler, superheater, exchanger panas, kondensator
Jangkauan ukuran:O.D.:6-76mm W.T.:0.9-19.0mm L: sesuai kebutuhan pelanggan
Pembuatan:
Tabung dibuat dengan pengelasan resistensi listrik.
Kondisi permukaan:
Tabung yang sudah jadi bebas dari skala., sedikit oksidasi tidak dianggap sebagai skala
Pengolahan panas:
Setelah pengelasan, semua tabung dirawat panas pada suhu 1200 °F ((650 °C) atau lebih tinggi dan selanjutnya dengan pendinginan di udara atau di ruang pendinginan di tungku atmosfer terkontrol.
Tabung-tabung yang ditarik dingin harus dirawat panas setelah melewati proses penarik dingin terakhir pada suhu 1200°F ((650°C) atau lebih tinggi
Uji dan Pemeriksaan:
Persyaratan Kekerasan
Tes Mekanis
- Tes perataan
- Uji Flange
- Uji terbalik
- Uji listrik hidrostatik atau tidak merusak
Kelas baja dan komposisi kimia:
| C | 0.18 |
| Mn | 0.27 ke 0.63 |
| P | ≤ 0.035 |
| S | ≤ 0.035 |
Sifat Mekanis
Stretch Tensile: min ksi[Mpa] 47[325]
Titik Hasil: min ksi[Mpa] 26[180]
Elongasi: ≥35%
Kekerasan: ≤ 72HRB
| Toleransi untuk OD dan WT ((SA-450/SA-450M) | |||||
| OD dalam ((mm) | + | - | WT dalam mm) | + | - |
| <1''(25.4) | 0.10 | 0.10 | ≤1,1/2'(38.1) | 20% | 0 |
| 1'''1'1'1'25.4'38.1 | 0.15 | 0.15 | >1.1/2'(38.2) | 22% | 0 |
| > 1,1/2' ′ < 2' ′8 | 0.20 | 0.20 | |||
| 2' ′ < 2.1/2 ′ ((50.8 ′ 63.5) | 0.25 | 0.25 | |||
| 2.1/2''<3'(63.5'76.2) | 0.30 | 0.30 | |||
| 3''?? < 4' ((76.2 ️ 101.6) | 0.38 | 0.38 | |||
| 4' ′ < 7.1/2' ((101.6 ′ 190.5) | 0.38 | 0.64 | |||
| > 7.1/2 ′9′(190.5 ′228.6) | 0.38 | 1.14 | |||
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