Application:The steel is used for upper deck or inner bottom plate as an alternative means of corrosion protection for cargo oil tanks 1.Typical Grades, Specification and Execution standard
|Grade ||Specification/ mm ||Execution standard |
|A-RCW,B-RCW,D-RCW,E-RCW ||(5~50)×(1600~4700)×L ||Following IMO MSC.289(87) or CCS,NK,ABS or |
"Guide for inspection of corrosion resistant steels in
crude oil tank cargo tanks"
Delivery Condition AR or CR or TMCP 2.Chemical Composition(wt.%)
|Grade ||C ||Si ||Mn ||P ||S ||Cr+Ni+Cu+Sb ||Nb+V+Ti ||Alt ||Ceq |
|A~E ||≤0.18 ||≤0.35 ||0.60~1.60 ||≤0.035 ||≤0.035 ||≤1.0 ||≤0.12 ||0.020~0.060 ||≤0.36 |
|AH32~EH36 ||≤0.18 ||≤0.50 ||0.90~1.60 ||≤0.035 ||≤0.035 ||≤1.0 ||≤0.12 ||0.020~0.060 ||≤0.36 |
Note: Nb, V and Ti composite micro-alloying were adopted;
Cr, Ni, Cu and Sb are intentionally added to improve corrosion resistance;
Ceq(%)=C+Mn/6+(Cr+Mo+V)/5+(Cu+Ni)/15. 3.1Property requirement
FAQ Q: What kind of work does your company do?
|Grade ||Thickness/mm ||Transverse tension ||Longitudinal impact test ||Average corrosion rate of base plate is mm/ years ||25 years later, the roof corrosion loss mm |
|ReH/MPa ||Rm/MPa ||A5/% ||Temperature ||average ||≤1.0 ||≤2 |
|A-RCW ||5~50 ||≥235 ||400~520 ||≥22 ||20 ||≥27 |
|B-RCW ||5~50 ||0 |
|D-RCW ||5~50 ||-20 |
|E-RCW ||5~50 ||-40 |
|AH32-RCW ||5~50 ||≥315 ||440~570 ||≥22 ||0 ||≥31 |
|DH32-RCW ||5~50 ||-20 |
|EH32-RCW ||5~50 ||-40 |
|AH36-RCW ||5~50 ||≥355 || ||≥21 ||0 ||≥34 |
|DH36-RCW ||5~50 ||490~630 ||-20 |
|EH36-RCW ||5~50 || ||-40 |
A: Our company is a professional manufacturer. We mainly produces are steel plate and steel tube.
Q: How can you assure your quality?
A: 1.We can provide you certificate of quality accordingly.
2.We are willing to accept the third party inspection, such as SGS,BV,CE and so on.
Q: Can you accept customization?
A: Yes. If you have special requirements on products or packages, we can do customization for you.
Q: Can you accept trail orders?
A: Generally our MOQ is 1 ton. But if you want to place a trail order as the beginning of our cooperation, we can accept smaller quantity at first. Surely we will have further and longer partnership after the beginning.
Q: Can you provide samples for checking before order?
A: Free samples can be provided as you required. You need only to bear the freight cost. If you want to know more details, please contact our sales online.
Q:How long time is the shortest delivery?
A:For stock material, the delivery time is just 3-5 working days.
And for customized product, it will takes 25-35 working days based on different size and quantity.
Q:What's the terms of payment?
A:We can accept T/T,100% irrevocable LC at sight, Western Union, etc,
If our quality is unapproved, we need and will refund full payment to customers
Q .How can we get your price ?
A:We need below information to quote for you:
1. Product Name
3. Material Grade (Chemical Composition)
6. The Drawing for Special Parts