Shandong Langnai Metal Product Co.,Ltd
Shandong Langnai Metal Product Co.,Ltd
Add to Cart
Acid pickling surface 321 309 310 317H stainless steel pipe pickled 309s 310s SS pipe
Stainless steel in the processing process will appear black, yellow oxide skin, in
order to improve the appearance of stainless steel and corrosion resistance, the
stainless steel after processing must undergo pickling passivation.Remove the
oxide skin after welding and high temperature processing, make the silver bright,
and make the treated surface form a layer of chromium as the main substance of
the oxide film, will not produce secondary oxygen corrosion, achieve the purpose
of passivation, so as to improve the surface corrosion quality of stainless steel
products, prolong the service life of the equipment
| Product Name | stainless steel pipe |
| Material | 300series |
| Technique | Cold rolled or hot rolled |
| Thickness | as per customers' requirement |
| Diameter | as per customers' requirement |
| Surface | polish and normal surface |
| Certifications | ISO/SGS/BV |
| MOQ | 1 ton |
| Price term | FOB / CIF /CFR /EXW |
| Payment term | T/T,L/C(30% deposit byT/T and 70% payment before delivery) |
| Delivery time | 5-10 days,Based on stock and order quantity |
| Sample | we could offer the sample for free charge but do not pay the cost of freight. |
| Note | We can produce other standard as the customers' requirement. |
Chemical composition
| Grade | C(max) | Mn(max) | P(max) | S(max) | Si(max) | Cr(max) | Ni(max) | Mo(max) |
| 201 | 0.15 | 5.5-7.5 | 0.06 | 0.03 | 1 | 16-18 | 3.5-5.5 | - |
| 304 | 0.08 | 2 | 0.045 | 0.03 | 1 | 18-20 | 8-10.5 | - |
| 304L | 0.03 | 2 | 0.045 | 0.03 | 1 | 18-20 | 8-12 | - |
| 316 | 0.08 | 2 | 0.045 | 0.03 | 1 | 16-18 | 10-14 | 2-3 |
| 316L | 0.03 | 2 | 0.045 | 0.03 | 1 | 16-18 | 10-14 | 2-3 |
| 321 | 0.08 | 2 | 0.045 | 0.03 | 0.75 | 17-19 | 9-12 | - |
Application
● widely used in aerospace, mobile communications, glasses, watches, auto
parts, precision hardware, medical equipment, food machinery, fasteners and
other industries.
● for the full pickling passivation of stainless steel, remove all kinds of oil, rust,
oxidation skin, welding spots and other dirt, after the treatment of the surface
becomes uniform silver white.
Product picture
Packing
Packing Concrete Steps:
1. pipes covered with wooden plate for protection in transportation.
2. All pipes will be loaded in strong wooden packages.
3. Every cartons loaded with good shoring and strengthening.
4. Take container loading pictures and seal the container.
Our advanced
Shandong langnai metal products co.,Promises to provide customers with tomorrow made products with
excellent materials to meet customer requirements. Through continuous improvement and innovation,The
quality level of the products produced by our company keeps in the forefront of the international industry.
Quality target:The acceptance rate of product delivery is more than 99%, the acceptance rate of product
delivery is increased by 0.1% year by year,And the acceptance rate of product delivery reaches 100%
"Quality get market, trust make the for brand" is my company 's business philosophy and on this.
Honesty, quality and reasonable price are our service tenet.
Our products: 201/304/304l / 316L / 309/310 stainless steel