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Stainless steel pipe fittings are a type of pipe fittings. They are made of stainless steel, so they are called stainless steel pipe fittings. They include: stainless steel elbows, stainless steel tees, stainless steel crosses, stainless steel reducers, stainless steel pipe caps, etc., depending on the connection method. It is divided into four categories: socket stainless steel pipe fittings, threaded stainless steel pipe fittings, flange stainless steel pipe fittings and welded stainless steel pipe fittings.
Corrosion resistance: Stainless steel pipes and fittings have excellent corrosion resistance because they contain chromium and other alloying elements. They can resist the erosion of oxidation, acidic and alkaline media, and are suitable for humid, acid-base environments.High strength: Stainless steel pipes and fittings have high strength and can withstand greater pressure and weight. They are suitable for engineering and mechanical fields with high strength requirements.Hygiene: Stainless steel pipes and fittings have a smooth surface, are not likely to breed bacteria, and are easy to clean and disinfect. They are suitable for medical equipment, food processing and other occasions with high hygiene requirements.High temperature resistance: Some stainless steel materials can maintain stability in high temperature environments and are suitable for high temperature industrial fields.Easy to process: Stainless steel pipes and fittings are easy to cold process, hot process and weld, and can produce complex shapes and precise size fittings.Grade | C | Mn | P | S | Si | Ni | Cr | Mo | Ti N |
WPXM-19 | 0.06 | 4.0-6.0 | 0.045 | 0.030 | 1.00 | 11.5-13.5 | 20.5-23.5 | 1.50-3.00 | --- 0.20-0.40 |
WP304 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 8.0-11.0 | 18.0-20.0 | --- | --- --- |
WP304L | 0.030 | 2.00 | 0.045 | 0.030 | 1.00 | 8.0-12.0 | 18.0-20.0 | --- | --- --- |
WP309 | 0.20 | 2.00 | 0.045 | 0.030 | 1.00 | 12.5-15.0 | 22.0-24.0 | --- | --- --- |
WP310S | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 19.0-22.0 | 24.0-26.0 | --- | --- --- |
WP316 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 10.0-14.0 | 16.0-18.0 | 2.00-3.00 | --- --- |
WP316L | 0.030 | 2.00 | 0.045 | 0.030 | 1.00 | 10.0-14.0 | 16.0-18.0 | 2.00-3.00 | --- --- |
Grade | Yield Strength, min, ksi [MPa] | Tensile Strength, min, ksi [MPa] |
304,304LN,304H,309,310,316,316LN316H,317 317L,321,321H,347,347H,348,348H,S31725 | 30 [205] | 75 [515] |
304L,316L | 25 [170] | 70 [485] |
304N,316N,S31726 | 35 [240] | 80 [550] |
XM-19 | 55 [380] | 100 [690] |
S31254 | 44 [300] | 94 [650]-119[820] |
S33228 | 27 [185] | 73 [500] |
S34565 | 60 [415] | 115 [795] |
Standard | ASTM A403 |
Reference Standard | A351/A351M,A743/A743M,A960/A960M,E112,E165,ASME B16.9,MSS SP-25 etc |
Grade | WPXM-19, WP304, WP304L, WP309, WP310S, WP316, WP316L etc |
Type | Seamless/Welded |
Test | Hydrostatic Test |
Used | Pressure Piping application |
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