ZIZI ENGINEERING CO.,LTD
ZIZI ENGINEERING CO., LTD
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According to the elbow radius, the basic type is LR & SR buttweld elbow, and 3D Elbow, 5D elbow, 10D elbow are also regular elbow types. Generally speaking, the larger radius elbows are suitable for solid conveying pipes with great resistance.
Elbow degree also have many options, the commonly used types are 45 degree elbow, 90 degree elbow and 180 degree elbow, as well as some special degree elbows are available.
| Size | NPS 1/2″ to 48″ |
| Thickness | Sch 10s, 20, STD, 40S, XS, 80S, 120, 160 |
| Standard | DL/T515, SY5257, ASME B16.9 or customer’s technical drawings |
| Bend Angle | 15°, 30°, 45°, 60°, 90°, 135°, 180° or at customer’s option |
| Straight Length L | Usually between 300mm and 1500mm |
| Carbon Steel | ASTM A234 WPB, A860 WPHY42, WHPY52, WPHY60, WHPY65, WPHY70 |
| Stainless Steel | ASTM A403 WP304/304L, WP304H, WP316/316L, WP310, WP317 |
| Alloy Steel | ASTM A234 WP1, WP5, WP9, WP11, WP12, WP22, WP91 |
| Duplex Steel | ASTM A815 UNS S31803, S32205, S32550, S32750, S32760 |
| Low Temp Carbon Steel | ASTM A420 WPL3,WPL6, WPL9 |
Chemical Composition
| C | Cr | Mn | Si | P | S | Ni | Mo |
| 0.03 | 22-23 | 0.2 | 1 | 0.03 | 0.02 | 4.5-6.5 | 3-3.5 |
Mechanical Properties
| Tensile Strength | Yield Strength | Elongation | Hardness |
| 450 | 655 | 20 | 290 |
Features
There are two ways for elbow weight calculation, one is using the formula, the other is using weight chart. Both way have their advantages and weaknesses.
Formula:
● You can get a precise answer but the calculation is complicated
W=0.0387 * S( D – S ) * R / 1000
W = Weight (kg/piece).
S = Thickness Schedule.
D = Nominal Diameter.
R= Radius.
Weight Chart
● Simple but not cover all elbow size.
Quality Assuarance
Certificate
● MTC, CE, ISO, TEST REPORT
Third Party Ispection
● BV, SGS, LR, DNV, ABS
Package
● Anti-rust Oil
● Plastic Film
● Wooden Cases & Pallets
Shipping
● LCL, 20GP, 40GP, Air, Courier
● 7 Days are ready for shipping