Shandong Duohe Import And Export Co., Ltd.
Quality is life,customer-centric,staff is fundamental,innovation is power,integrity is our principle.
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Is 304 and 304L the same?
Type 304 and 304L have very similar chemical and mechanical properties. The only difference between them
is the carbon content; the 304 stainless steel has a maximum range of carbon of 0.08% whereas the 304L
has a maximum range of 0.03%. This range of carbon in the steel affects the corrosion resistance of the tanks.
Is stainless steel the same as cold rolled steel?
Key Differences. First, it's important to understand that stainless steel is an alloy and cold rolled steel is a
process. So, in the case of stainless steel, the material is a metallic compound that's composed of steel,
along with other elements. Cold rolled steel, on the other hand, isn't an alloy.
Product description:
| Manufacture Standard: | ASTMA213, ASTMA312, ASTM A269, ASTMA511, ASTM A789, ASTM A790 |
| Grades: | 201,304 , 304L, 316, 316L |
| Size: | Customized |
| Process methods: | Cold dawning, Cold rolling |
| Delivery time: | 7-15days |
| Packing: | Bundle+Pallet |
| Surface &Delivery condition: | Solution annealed and pickled, grey white (polished),with plain ends/bevel edges ends |
| Length: | 2000mm-6000mm or as Required |
| Min order quantity: | 1 Ton |
| Payment terms: | 30%T/T Advance + 70% Balance |
| Certificates: | ISO9001:2000 quality system |
| Usage: | Kitchenware,industry, architecture, decoration and medical instrument |
| Advantage: | 1.Good Reputation 2.Samples |
| Surface Finish | Definition | Application |
| 2B | Those finished, after cold rolling, by heat treatment, pickling or other equivalent treatment and lastly by cold rolling to given appropriate luster. | Medical equipment, Food industry, Construction material, Kitchen utensils. |
| BA | Those processed with bright heat treatment after cold rolling. | Kitchen utensils, Electric equipment, Building construction. |
| NO.3 | Those finished by polishing with No.100 to No.120 abrasives specified in JIS R6001. | Kitchen utensils, Building construction. |
| NO.4 | Those finished by polishing with No.150 to No.180 abrasives specified in JIS R6001. | Kitchen utensils, Building construction, Medical equipment. |
| HL | Those finished polishing so as to give continuous polishing streaks by using abrasive of suitable grain size. | Building Construction. |
| NO.1 | The surface finished by heat treatment and pickling or processes corresponding there to after hot rolling. | Chemical tank, pipe. |
FAQ
Q1: Are you a factory or trading company?
A1: We are a Chinese manufacture of steel pipes with both factories and trading companies.
Q2.How can you ensure the quality of your product?
A2.All products have to go through three checks in the whole manufacturing process,it includes production,cutting sheets and the packing.
Q3.What is your delivery time and the supply ability?
A3.The delivery time normally within 15~20working days,we can supply about 15,000tons every month.
Q4.What kind of equipment in your factory?
A4.Our factory have advanced five-eighth roller rolling,cold rolling production equipment on the roll,advanced processing and testing equipment,which makes our product better quality with efficiency.
Q5.About the complaint,quality problem,etc aftersales service,how do you handle it?
A5.We will have certain colleague to follow our order accordingly for each order with professional after-sales service. If any claim happen, we will take our responsibility and compensate as per contract. For better serve our client, we'll keep tracing feedback of our products from clients and that's what make us different from other suppliers. We're customer care enterprise.