Pickling stainless steel angle steel advantage
1、Through pickling the stainless steel surface has an average of 10um thick layer of surface is corroded off, the chemical activity of the acid makes the dissolution rate of the defective parts is higher than other parts on the surface, so pickling can make the whole surface tends to be uniform balance, some of the original easy to cause corrosion hidden dangers are removed.
2、Through pickling passivation, iron and iron oxides are dissolved in priority than chromium and chromium oxides, the chrome-poor layer is removed, and the surface of stainless steel is chrome-rich. Under the action of oxidizer passivation, the surface of stainless steel produces a complete and stable passivation film. The potential of this chrome-rich passivation film can reach +1.0V(SCE), which is close to the potential of precious metals, improving the corrosion stability of stainless steel.
Why pickling
During The process of manufacturing stainless steel pipes, after welding stainless steel coil, the weld will has seam and the surface of stainless steel will have oil pollution, oxide scale, welding spots etc., So we need to pickling these things. Pickling stainless steel pipes is the necessary process which is improtant to form and sale the stainless steel pipes.
Pickling stainless steel angle steel chemical composition
| Chemical Material Composition of SS 304 | ||||||||||
| Grade | Mn | C | P | Si | Cr | S | Ni | Mo | N | |
| Stainless Steel 304 | minimum | – | – | – | – | 18 | – | 8 | – | – |
| maximum | 2 | 0.08 | 0.045 | 0.75 | 20 | 0.03 | 10.5 | 0.1 | ||
Pickling stainless steel angle steel mechanical property
| Grade | Strength of Yield 0.2% Proof (MPa) minimum | Elongation (% in 50mm) minimum | Strength of Tensile (MPa) minimum | Pipes Hardness | |
| Brinell (HB) maximum | Rockwell B (HR B) maximum | ||||
| Stainless Steel 304 Seamless Pipe | 205 | 40 | 515 | 201 | 92 |
Pickling stainless steel angle steel specification
ITEM | Pickling stainless steel angle steel |
Size | Thickness:3-24mm; Length:3m,6m,9m,12m, or customized |
Tolerance | Weight tolarance: -4% TO -10%;Width +/-0.8mm;Thickness +/-0.4mm;Length:4-12mm |
Brand | RONSCO,BAOSTEEL, JISCO, TISCO, etc. |
Equal Angle | Type: 2#-20#;Size: 20-200mm;Thickness: 3.0-24mm; Weight: 0.597-71.168kg/m |
Unequal | Type: 2.5*1.6-20*12.5#;Size:25*16-200*125mm;Long Side: 25-200mm |
Material | 201.202.301.302.304.304L.310S.316.316L.321.347,329,309S.2205.2507.2520. 430.410.440.904Lect. Or Customized |
Standard | GB, AISI, ASTM, ASME, EN, BS, DIN, JIS |
Surface | Mill finish. Galvanized.Forged.Hot Rolled.Cold Drawn.Peeled or customized |
Trade Term | FOB CIF CFR CNF EXWORK |
Application | widely used in a variety of architectural and enginee |
Package | Standard export sea-worthy packing or customized |
Lead Time | 3-15 days after deposit |
Payment | TT/LC |
Sample | we could offer the sample for free charge but do not pay the cost of freight. |
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Application
Our steel products are mainly used in chemical industry, petrochemical industry, offshore, seawater pipeline, desalination plant, nuclear engineering, paper and pulp industry.
Our export country
We are a well known worldwide supply and export stainless steel angle in following countries：,Italy, Philippines, France，Ireland, Portugal, Gambia, Thailand, Ukraine, United Kingdom, Netherlands, South Africa, Spain, Turkey, Libya, Romania, Puerto Rico, Azerbaijan, United Arab Emirates, Pakistan, Ghana, Slovakia, Germany, Saudi Arabia, Afghanistan, Bolivia, Switzerland, Bangladesh, Taiwan, Oman, Egypt, Greece, Norway, Singapore, Bulgaria, Estonia, Belgium, Yemen, Hong Kong, Ecuador, Sri Lanka, Nepal, Belarus, Finland, Gabon, Iran, Canada, Argentina, Lebanon.
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