Tubing Baja Struktural Bulat Seamless Presisi Tinggi Standar ASTM A53
Rincian produk
Tabung Baja struktural
,cold formed steel tube
ASTM A53 Gr.B TypeS Cold Drawn Seamless Structural Pipe (pipa struktural tanpa jahitan yang ditarik dingin)
Jangkauan ukuran:O.D.: 6-168mm W.T.:1-15mm L: max 12000mm
Kelas baja dan komposisi kimia:
| Baja Kelas | C | Mn | P | S | Cr | Cu | Mo | Tidak | V |
| maksimal | maksimal | maksimal | maksimal | maksimal | maksimal | maksimal | maksimal | maksimal | |
| A | 0.25 | 0.95 | 0.05 | 0.045 | 0.40 | 0.40 | 0.15 | 0.40 | 0.08 |
| B | 0.30 | 1.2 | 0.05 | 0.045 | 0.40 | 0.40 | 0.15 | 0.40 | 0.08 |
Sifat Mekanis:
| Kelas | Kekuatan tarik Mpa | Titik Hasil Mpa | Perpanjangan % |
| A | ≥330 | ≥205 | 20 |
| B | ≥415 | ≥ 240 | 20 |
Pembuatan:
Tabung dibuat dengan proses yang mulus.
Toleransi:
Diameter-- Untuk pipa NPS1 1/2 (DN40) atau lebih kecil, diameter luar di setiap titik tidak boleh berbeda lebih dari ± 1/64in (0,4mm) dari diameter luar yang ditentukan.diameter luar tidak dapat berbeda lebih dari ± 1% dari diameter luar yang ditentukan.
Ketebalan √ Ketebalan dinding minimum di setiap titik tidak boleh lebih dari 12,5% di bawah ketebalan dinding yang ditentukan.
Pengerjaan, Penutup, dan Penampilan:
Produsen pipa harus mengeksplorasi sejumlah kekurangan permukaan visual yang cukup untuk memberikan kepastian yang wajar bahwa mereka telah dievaluasi dengan benar sehubungan dengan kedalaman.
Uji dan Pemeriksaan:
- Tes Mekanis
- Tes ketegangan
- Tes perataan
- Tes Kekerasan
- Tes lentur
- Uji hidrostatik
- Tes listrik non-destructive
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