Water Proof Polishing Stainless Steel Bars 300 Series 400 Series
What is the difference between 300 and 400 series stainless steel?
300 and 400 series have comparable tensile strength and yield strength. 300 Series grades are highly ductile. On the contrary, 400 series grade has higher carbon content, tend to have more hardness than 300 series. Grade 400 series grades are stronger.
How strong is stainless steel bar?
It has good ductility in the annealed condition but is capable of being hardened up to Rockwell Hardness 50HRC, the highest hardness of the 12 per cent chromium grades. Its best corrosion resistance is achieved when the metal is hardened and surface ground or polished.
Chemical Composition |
GRADE | C | Si | Mn | P | S | Ti |
SGCC/DX51D+Z | ≤0.10 | ≤0.50 | ≤0.60 | ≤0.10 | ≤0.030 | ≤0.020 |
DX52D+Z | ≤0.10 | ≤0.50 | ≤0.60 | ≤0.10 | ≤0.030 | ≤0.020 |
SGCD/DX53D+Z | ≤0.10 | ≤0.30 | ≤0.50 | ≤0.05 | ≤0.030 | ≤0.020 |
SGCE/DX54D+Z | ≤0.10 | ≤0.30 | ≤0.30 | ≤0.03 | ≤0.020 | ≤0.020 |
DX56D+Z | ≤0.10 | ≤0.30 | ≤0.30 | ≤0.03 | ≤0.020 | ≤0.020 |
Structural | ≤0.20 | ≤0.60 | ≤1.70 | ≤0.10 | ≤0.045 | |

Packaging way :
standard seaworthy export packing,other types of packing can be customized as every requirement.

About Us
Jiangsu Lianzhong Metal Products (Group) Co., Ltd provides customers with different specifications and materials for stainless with 10 years' experience.Special Purpose with high quality, fast delivery, competitive price and excellent exprience of after-sale service.We have keep highly appreciated cooperation with purchasers from many countries .If you are interested in our products, please feel free to contact me any time! Welcome to hear from your inquiry!
FAQ
Q1: Can you do OEM for me?
A1:We accept all OEM orders,just contact us and give me your design.we will offer you a reasonable price and make samples for you ASAP.
Q2:Can you send products to my country?
A2: Sure, we can. If you do not have your own ship forwarder, we can help you.
Q3:When can I get the quotation ?
A3:We usually quote you within 24 hours after we get your inquiry.Please inform us the following information
- Grade, Surface, Thickness, Size, Tolerance, Special request
- Amount
- Price Term
- Leave your contact
If you are very urgent to get the quotation.Please call us or tell us in your mail, so that we could regard your inquiry priority.
Q4: How can I place the order?
A4: First sign the PI,pay deposit,then we will arrange the production.After finished production need you pay balance. Finally we will ship the Goods.
Q5: Do you provide samples?
A5: Yes, we could offer the sample for free charge but the cost of freight is by receiver, normally.