ASTM A312 TP304 Hollow Bars, With Thick Walls, Used To Manufacture Flanges And Machinery
Price:
NEGOTIABLE
MOQ:
1pc
Delivery Time:
5-80 DAYS
Brand:
YUHONG
Product Description
ASTM A312 TP304 Hollow Bars, With Thick Walls, Used To Manufacture Flanges And Machinery
Description
HOLLOW BAR represents the optimal form for flange production from round bars.
Flange/Forging Machining: When producing large-diameter flanges, using solid round bars directly requires drilling a huge hole, resulting in significant material waste and time consumption. Using HOLLOW BAR, the material is already close to its final shape, requiring only minimal internal and external turning, leading to high material utilization and low processing costs.
Large Sleeves/Machinery Parts: Used in manufacturing bearing rings, large hydraulic cylinder barrels, machine bushings, and other parts requiring high wall thickness and strength. The wall thickness is thicker than ordinary pipes, but not yet reaching the wall thickness level of typical hollow bars.
| Chemical Composition (%) | |
| Element | TP304 |
| Carbon (C) | ≤ 0.08 |
| Manganese (Mn) | ≤ 2.00 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
| Silicon (Si) | ≤ 1.00 |
| Chromium (Cr) | 18.0 – 20.0 |
| Nickel (Ni) | 8.0 – 11.0 |
| Iron (Fe) | Balance |
| Mechanical Properties (Room Temperature) | |
| Property | TP304 |
| Tensile Strength, Rm (min) | 515 MPa (75 ksi) |
| Yield Strength, Rp0.2 (min) | 205 MPa (30 ksi) |
| Elongation (in 2" or 50mm), min | 35% |
| Hardness (HBW), max | 183 |
Application
| Usage Mode | Application Focus | Key Advantage |
| As Pipe (A312) | Fluid transmission, chemical processing, sanitary lines | Corrosion resistance, ease of welding, ready-to-use |
| As Blank (Hollow Bar) | Flanges, valve bodies, large fittings, mechanical parts | Near-net shape, minimal machining, high material utilization |
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Company
Yuhong Group Co.,Ltd
Location
20TH FLOOR,NO.1 NEW WORLD BUILDING ,NO.1018 MINAN ROAD,YINZHOU DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE, CHINA
Contact Person
Jikin Cai