ELCON FASTERNERS : Technical Specification
Chemical Compositions
| Grade | Material Similar to | C Max | Mn Max | P Max | S Max | Si Max | Cr | Ni | Mo |
|---|---|---|---|---|---|---|---|---|---|
| A2 / B8 | AISI 304 | 0.08 | 2.00 | 0.05 | 0.030 | 1.00 | 17.00-20.00 | 8.0-13.0 | --- |
| A2 / B8 | AISI 316 | 0.08 | 2.00 | 0.05 | 0.030 | 1.00 | 16.00-18.50 | 10.0-14.4 | 2.00-3.00 |
Physical Properties
| Grade | Standard | Property Class | Tensile Strength Min.(N/mm2) | Yield Strength 0.2% Offset Min. (N/mm2) | Elongation After Fracture AL mm Min. |
|---|---|---|---|---|---|
| A2 & A4 | ISO 3506 | 70 | 700 | 450 | 0.4d |
| 80 | 800 | 600 | 0.3d |
| Grade | Standard | Property Class | Diameter In. | Tensile Strength Min.(KSI) | Yield Strength 0.2% Offset Min. (KSI) | Elongation In 4D min. % | Reduction Of Area Min % | Hardness(Max.) Rockwell |
|---|---|---|---|---|---|---|---|---|
| B8 | ASTM A193/A193M | Class1 | All | 75 | 30 | 30 | 50 | B96 |
| Class2 | To 3/4 | 125 | 100 | 12 | 35 | C35 | ||
| Over 3/4 to 1 | 115 | 80 | 15 | 35 | C35 | |||
| B8M | Class1 | All | 75 | 30 | 30 | 50 | B96 | |
| Class2 | To 3/4 | 110/td> | 96 | 15 | 45 | C35 | ||
| Over 3/4 to 1 | 100 | 80 | 20 | 45 | C35 |
Torsional Strength as Per ISO 3506
For Self Tapping Screw
| Thread | ST 2.2 | ST 2.6 | ST 2.9 | ST 3.3 | ST 3.5 | ST 3.9 | ST 4.2 | ST 4.8 | ST 5.5 | ST 6.3 | ST 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Min Torsional Strength Nm | 0.45 | 0.9 | 1.5 | 2 | 2.7 | 3.4 | 4.4 | 6.3 | 10 | 13.6 | 30.5 |
For Austenitic Bolts and Screws M1.6 to M16 (Coarse Thread)
| Thread | M1.6 | M2.0 | M2.5 | M3.0 | M4.0 | M5.0 | M6.0 | M8.0 | M10.0 | M12.0 | M16.0 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min. Breaking Torque, Mbmin. --Nm | Property Class | 70 | 0.20 | 0.4 | 0.9 | 1.6 | 3.8 | 7.8 | 13 | 32 | 65 | 110 | 290 |
| 80 | 0.24 | 0.48 | 0.96 | 1.8 | 4.3 | 8.8 | 15 | 37 | 74 | 130 | 330 | ||
Note
- Special Stainless Steel Grade available on request.
- We can develop product as per customer's specification/drawing
- All austenitic stainless steel fasteners are normally non-magnetic; after cold working, some magnetic properties may be evident Please ref: ISO 3506-1 standard
- Test Certificate is provided as per the EN 10204: 3.1B/3.1 standard