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| مكان المنشأ: | الصين |
| اسم العلامة التجارية: | YUHONG |
| إصدار الشهادات: | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| رقم الموديل: | ASTM A269 TP316L أنبوب ملحوم من الفولاذ المقاوم للصدأ |
| الحد الأدنى لكمية: | 500 كجم |
|---|---|
| تفاصيل التغليف: | علبة خشبية / حزمة مع غطاء بلاستيكي |
| وقت التسليم: | 7 أيام |
| شروط الدفع: | الاعتماد المستندي، تي/تي |
| اسم المنتج: | أنبوب ملحوم من الفولاذ المقاوم للصدأ | معيار: | أستم A269، أسم SA269 |
|---|---|---|---|
| مادة: | TP304/304L/304H، TP310S/310H، TP316L/316H/316Ti، TP317/317L، TP321/321H، TP347/347H 904L | OD: | 1/4 "، 3/8" ، 1/2 "، 5/8" ، 3/4 "، 1" ، 1.1 / 4 "، إلخ. |
| طول: | واحد عشوائي واحد ، مزدوج العشوائي والقطع | نهاية: | نهاية عادي ، نهاية مشطوفة |
| يكتب: | سلس ، ملحومة | سطح: | مصقول ومخلل ومشرق مصقول |
| تطبيق: | تسخين، تبريد، أجهزة، آلة معالجة الغذاء، | ||
| إبراز: | ASTM A269 TP316L stainless steel tube,316L bright annealed tubing,welded stainless steel tubing BA,316L bright annealed tubing,welded stainless steel tubing BA |
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ASTM A269 / ASME SA269 TP316L Austenitic Stainless Steel Welded Tubing Bright Annealed
Its a precision welded tubing made from 316L stainless steel, which is annealed after welding in a controlled atmosphere to both improve its properties and maintain a bright, clean, cosmetic surface finish. It is primarily used for applications requiring corrosion resistance, hygiene, and a good appearance. Welded tube is generally more cost-effective than seamless tube and has excellent dimensional consistency (wall thickness and OD). For many applications, its performance is equal to or better than seamless.
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Fe |
| SS 316L | 0.035 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 16.00 - 18.00 | 2.00 - 3.00 | 10.00 - 14.00 | 68.89 min |
ASTM A269 TP316L Stainless Steel Welded Tube Physical Properties
Grade |
Density (kg/m3) |
Elastic Modulus (GPa) |
Mean Co-eff of Thermal Expansion (µm/m/°C) | Thermal Conductivity (W/m.K) |
Specific Heat 0-100°C (J/kg.K) |
Elec Resistivity (nΩ.m) |
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| 0-100°C | 0-315°C | 0-538°C | At 100°C | At 500°C | |||||
| 316/L/H | 8000 | 193 | 15.9 | 16.2 | 17.5 | 16.3 | 21.5 | 500 | 740 |
Annealed: After welding, the tube undergoes a heat treatment. This process:
Relieves Stresses: Removes internal stresses induced by the forming and welding operations.
Restores Corrosion Resistance: Re-dissolves any chromium carbides that may have formed, restoring the full corrosion resistance of the 316L material, especially in the weld zone.
Softens the Material: Returns the tube to a soft, ductile state.
Bright: This specifies how the annealing is done. The tube is annealed in a controlled atmosphere furnace (typically with a mixture of Hydrogen and Nitrogen) that contains no oxygen. This prevents the formation of scale (oxide layer) on the surface during the high-temperature process.
Result: The tube comes out of the furnace with a smooth, bright, metallic surface that requires no further pickling or acid cleaning. The finish is often described as a "milky" or satin-bright mirror.
Key Characteristics & Advantages
Excellent Corrosion Resistance: Thanks to 316L composition.
Superior Surface Finish: The BA finish is clean, smooth, and easy to sterilize.
Hygienic & Cleanable: The smooth interior surface prevents bacteria buildup and is easy to clean.
Good Aesthetic Appearance: The bright finish is often suitable for visible applications.
Consistent Dimensions: Welded and drawn processes allow for tight tolerances.
Applications
This type of tube is ideal for industries where corrosion resistance, cleanliness, and appearance are paramount:
Pharmaceutical & Bioprocessing: Process lines, filter housings, transfer lines.
Food & Beverage: Process lines for milk, beer, juice; sanitary fittings.
Semiconductor: High-purity gas and chemical delivery lines.
Chemical Processing: Instrumentation lines, sample lines.
Architecture & Design: Handrails, visible structural components in corrosive environments.
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