1: In layman's terms, Carbon Steel Screws do not have steel with alloy elements added deliberately, and Stainless Steel Screws are steel with high alloy content added for rust prevention.
2: Stainless steel screws are far more expensive than carbon steel screws.
3: These two kinds of screws are different, so they cannot be compared. Carbon steel screws are usually stronger than stainless steel screws, but they are easy to rust.
4. The materials of stainless steel screws and carbon steel screws are different, and the environments used are also different.
The corrosion resistance of carbon steel is relatively poor, and the bolts will rust to death after a long time. Stainless Steel Bolts are relatively better.
Material | 1.StainlessSteel:SS201,SS303,SS304,SS316,SS410,SS420 |
2.Steel:C45(K1045), C46(K1046),C20 |
3.Carbon Steel: 1010,1035,1045 |
4.Aluminum or Aluminum Alloy:Al6061,Al6063,Al7075,etc |
5.Brass:H59,H62,Copper,Bronze |
Grade | Class 4.8, 5.8, 6.8, 8.8, 10.9, 12.9 |
ASTM A193 / ASTM A193M Grade B5 (AISI 501) |
ASTM A193 / ASTM A193M Grade B6, B6X (AISI 410) |
ASTM A193 / ASTM A193M Grade B7, B7M (AISI 4140, AISI 4142, AISI 4145, AISI 4140H, AISI 4142H, AISI 4145H |
ASTM A193 / ASTM A193M Grade L7,L7M,L43 |
ASTM A193 / ASTM A193M Grade B16 |
ASTM A193 /A193M, ASTM A320 /A320M Grade B8, B8A (AISI 304, AISI 304L, AISI 304H) |
ASTM A193 /A193M, ASTM A320 /A320M Grade B8C, B8CA (AISI 347, AISI 347H) |
ASTM A193 /A193M, ASTM A320 /A320M Grade B8M, B8MA, B8M2, B8M3 (AISI 316, AISI 316L, AISI 316H) |
ASTM A193 /A193M, ASTM A320 /A320M Grade B8P, B8PA (AISI 305) |
ASTM A193 /A193M, ASTM A320 /A320M Grade B8N, B8NA (AISI 304N) |
ASTM A193 /A193M, ASTM A320 /A320M Grade B8MN, B8MNA (AISI 316N) |
ASTM A193 /A193M, ASTM A320 /A320M Grade B8MLCuN, B8MLCuNA |
ASTM A193 /A193M, ASTM A320 /A320M Grade B8T, B8TA (AISI 321, AISI 321H) |
ASTM A193 /A193M, ASTM A320 /A320M Grade B8A, B8RA |
ASTM A193 /A193M, ASTM A320 /A320M Grade B8S, B8SA |
ASTM A193 /A193M, ASTM A320 /A320M Grade B8LN, B8LNA (AISI 304N, AISI 304LN) |
ASTM A193 /A193M, ASTM A320 /A320M Grade B8MLN, B8MLNA (AISI 316N, AISI 316LN) |
Finish | Plain, Zinc Plated(Clear/Blue/Yellow/Black), Black oxide, Nickel, Chrome, H.D.G and etc. |
Thread | UNC,UNF,UEF,UN,UNS |
Standard | ISO, GB, BS, DIN, ANSI,JIS, Non-standard |
Sample Service | Samples are all in free. |
Certificate | ISO9001,CE |
Advantage | 1. Competitive price; 2. OEM service available |
Packing | Bulk in cartons (25kg Max.)+wood Pallet or according to customer special demand |
Delivery method | by sea, by air or by express service |
Application | Structural Steel; Metal Building; Oil&Gas; Tower&Pole; Wind Energy; Mechanical Machine; Automobile: Home Decorating and etc. |