ZIZI ENGINEERING CO.,LTD
ZIZI ENGINEERING CO., LTD
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Professional supplier of forged steel high pressure pipe flanges export 4" 2500# weld neck flange RF alloy steel ASTM A182 F9 ASME B16.5 for Vietnam project.
The flange pressure ratings are 150#, 300#, 400#, 600#, 900#, 1500# and 2500#. We can express them in different ways that 150 Lb, 150 Lbs or Class 150. The higher the class is, the thicker the metal is. Thus a higher pressure can be handled.
| Size | NPS 1/2" - 24", DN15 - DN600 |
| Pressure | Class 150, 300, 600, 900, 1500, 2500, 150#-2500#, JIS 5K,10K, 20K, 30K, PN6 - PN40 |
| Standard | ASME B16.5, B16.47, DIN, JIS |
| Seal Types | Raised Face, Flat Face, Ring Type Joint, Male-Female |
| Material | ASTM A182 F1, F5, F9, F11, F12, F22, F91 |
Since the pressure is large, the diameter covers NPS 1/2 to 12 only. And not cover the socket weld flange, because it's pressure up to 1500# only.
Marking
The workers marked " WNFF Flange 4" 2500# ASTM A182 F9 ASME B16.5 ZZ165" on weld neck flanges. It covers flange type, size, pressure, material grade, stadnard and heat No.
Surface
Surfaced the alloy steel grade 9 flanges with anti-rust oil againest the rust during the shipment.
Use plastic film to wrapped of all forged steel flanges after done anti-rust oil.
Package
Put 4 inch weld neck flanges on wooden case and bundle it with packing belts.
Print and stick shipping mark on the outside of wooden case for easy indentification.
Inspection
Why Choose Us?
| C | Mn | P | S | Si | Cr | Mo |
| 0.15 | 0.3-0.6 | 0.03 | 0.03 | 0.5-1.0 | 8-10 | 0.9-1.1 |
| Tensile Strength | Yield Strength | Elongation |
| 380 (Mpa) | 585 (Mpa) | 20 (%) |