SUS321(UNS S32100) stainlss steel hardware fasteners hex socket set screws

SUS321(UNS S32100)
SUS321 stainless steel (UNS S32100) is a kind of stability is very good stainless steel. In the temperature of 800-800 ° F (427-816 ° C), chromium carbide precipitation conditions, can still maintain good ability of resistance to intergranular corrosion.Due to the ingredients added titanium,in the case of chromium carbide formation, 321 alloy can still maintain stability.

General information:

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our factory pictures:

super duplex 2507 din 931 stainless steel bolt  acier duplex 

our inspection machine pictures:

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Our quality control:

QA / QC Introduction :

All of our orders will be inspected by our QC team. We will check the quality during the production time .Also check the quality before shipping . 

1.Before production, we will use spectrometer to test raw material to prevent mistakes

2.Every step QC department will record ,such as raw material cutting dimension, semi-finished product size, quantity , finished item detailed size

3.Before delivery ,detailed inspection report of finished products will present .

4. Beside size, we will check 10% to 20% of total quantity products whether have thread broken ,greasy, marking.packing ect.

5.Before delivery ,we will provide our mill test certificate together with inspection report.

6.Our mechanical property always shows tensile strength ,yield strength ,elongation,hardness, if you need more, just let us know in advance.

our Packing pictures:

How every order moves:

1. Inquiry - professional quotation

2. Confirm price, delivery time, weight, HS code, payment term etc.

3. Rachel, that’s me , will sent you proforma invoice

4. Client make payment and sent us bank slip to start production

5. Let you know the production information every five days 

6. Sent you finished products pictures and inspection pictures

7. Client arrange balance payment 

8. Raw material certificate, mill test certificate with chemical and mechanical property on, Size inspection report packing list ,commercial invoice will be sent to you.

9. Sent you Bill of lading to track the shipment ,or express tracking number

10. After receiving goods one month later, we will sent you a feedback form to know whether our goods function well

  Other proucts and some non standard products manufacture as drawing:

For More details ,pls kindly Contact Sandy Hou ! I am here waiting for your any questions !