Stainless Steel All-Thread Bar
Presented below are four different stainless steel options for All-Thread-Bar anchoring. Generally, the Stainless 304 B8 Class 1 and the Stainless 316 B8M Class I bars are the least expensive and most readily available of the Stainless Steels. The Stainless 304 B8 Class II bar boasts the highest strength among the Stainless Steels, while the 316 B8M Class II provides the combination of high strength and the highest level of corrosion resistance. Check with your local WFEC Technical Rep for information on availability and lead times.
ASTM A193 304 B8 & 316 B8M Class 1 Stainless Steel Threaded Bar
Structural Properties
| Diameter Range |
Yield Stress |
Ultimate Stress |
Elongation in 4 Bar Dia |
Reduction of Area |
|---|---|---|---|---|
| All Diameters | 30 KSI (207 MPa) |
75 KSI (517 MPa) |
30% min | 50% min |
Stainless Steel Threaded Bar ASTM A193 304 B8 and 316 B8M Class 1
| Bar Diameter & Pitch |
Minimum Net Area Thru Threads |
Minimum Ultimate Strength |
Minimum Yield Strength |
Nominal Weight |
Part Number |
|---|---|---|---|---|---|
| 1/2” – 13 (13 mm) |
0.14 in2 (92 mm2) |
10.6 kips (47.3 kN) |
4.26 kips (18.9 kN) |
0.5 lbs/ft (0.8 kg/m) |
B8U-04-S4C1 B8U-04-S6C1 |
| 5/8” – 11 (16 mm) |
0.23 in2 (146 mm2) |
16.9 kips (75.2 kN) |
6.78 kips (30.2 kN) |
0.8 lbs/ft (1.3 kg/m) |
B8U-05-S4C1 B8U-05-S6C1 |
| 3/4” – 10 (19 mm) |
0.33 in2 (216 mm2 |
25.1 kips (111 kN) |
10.0 kips (44.6 kN) |
1.2 lbs/ft (1.8 kg/m) |
B8U-06-S4C1 B8U-06-S6C1 |
| 1” – 8 (25 mm) |
0.61 in2 (391 mm2) |
45.5 kips (202 kN) |
18.2 kips (80.9 kN) |
2.1 lbs/ft (3.2 kg/m) |
B8U-08-S4C1 B8U-08-S6C1 |
| 1-1/4” – 7 (32 mm) |
0.97 in2 (625 mm2) |
72.7 kips (323 kN) |
29.1 kips (129 kN) |
3.4lbs/ft (5.0 kg/m) |
B8U-10-S4C1 B8U-10-S6C1 |
| 1-1/2” – 6 (38 mm) |
1.41 in2 (906 mm2) |
105 kips (469 kN) |
42.2 kips (188 kN) |
5.1 lbs/ft (7.5 kg/m) |
B8U-12-S4C1 B8U-12-S6C1 |
ASTM A193 304 Class 2 Stainless Steel Threaded Bar
Structural Properties
| Diameter Range |
Yield Stress |
Ultimate Stress |
Elongation in 4 Bar Dia. |
Reduction of Area |
|---|---|---|---|---|
| Up to 3/4″ (to 19 mm) |
100 KSI (690 MPa) |
125 KSI (862 MPa) |
12% min | 35% min |
| 1″ (25 mm) |
80 KSI (552 MPa) |
115 KSI (793 MPa) |
15% min | 35% min |
| 1-1/4″ (32 mm) |
65 KSI (448 MPa) |
105 KSI (724 MPa) |
20% min | 35% min |
| 1-1/2″ (38 mm) |
50 KSI (375 MPa) |
100 KSI (670 MPa) |
28% min | 45% min |
Stainless Steel Threaded Bar ASTM A193 304 B8 Class 2
| Bar Diameter & Pitch |
Minimum Net Area Thru Threads |
Minimum Ultimate Strength |
Minimum Yield Strength |
Nominal Weight |
Part Number |
|---|---|---|---|---|---|
| 1/2” – 13 (13 mm) |
0.14 in2 (92 mm2) |
17.7 kips (78.9 kN) |
14.2 kips (63.1 kN) |
0.5 lbs/ft (0.8 kg/m) |
B8U-04-S4C2 |
| 5/8” – 11 (16 mm) |
0.23 in2 (146 mm2) |
28.2 kips (126 kN) |
22.6 kips (101 kN) |
0.8 lbs/ft (1.3 kg/m) |
B8U-05-S4C2 |
| 3/4” – 10 (19 mm) |
0.33 in2 (216 mm2 |
41.8 kips (186 kN) |
33.4 kips (149 kN) |
1.2 lbs/ft (1.8 kg/m) |
B8U-06-S4C2 |
| 1” – 8 (25 mm) |
0.61 in2 (391 mm2) |
69.7 kips (310 kN) |
48.5 kips (216 kN) |
2.1 lbs/ft (3.2 kg/m) |
B8U-08-S4C2 |
| 1-1/4” – 7 (32 mm) |
0.97 in2 (625 mm2) |
102 kips (453 kN) |
63.0 kips (280 kN) |
3.4lbs/ft (5.0 kg/m) |
B8U-10-S4C2 |
| 1-1/2” – 6 (38 mm) |
1.41 in2 (906 mm2) |
141 kips (625 kN) |
70.2 kips (312 kN) |
5.1 lbs/ft (7.5 kg/m) |
B8U-12-S4C2 |
ASTM 316 B8M Class 2 Stainless Steel Threaded Bar
Structural Properties
| Diameter Range |
Yield Stress |
Ultimate Stress |
Elongation in 4 Bar Dia. |
Reduction of Area |
|---|---|---|---|---|
| Up to 3/4″ (to 19 mm) |
96 KSI (662 MPa) |
110 KSI (759 MPa) |
15% min | 45% min |
| 1″ (25 mm) |
80 KSI (552 MPa) |
100 KSI (670 MPa) |
20% min | 45% min |
| 1-1/4″ (32 mm) |
65 KSI (448 MPa) |
95 KSI (655 MPa) |
25% min | 45% min |
| 1-1/2″ (38 mm) |
50 KSI (375 MPa) |
90 KSI (621 MPa) |
30% min | 45% min |
Stainless Steel Threaded Bar ASTM A193 316 B8 Class 2
| Bar Diameter & Pitch |
Minimum Net Area Thru Threads |
Minimum Ultimate Strength |
Minimum Yield Strength |
Nominal Weight |
Part Number |
|---|---|---|---|---|---|
| 1/2” – 13 (13 mm) |
0.14 in2 (92 mm2) |
15.6 kips (69.4 kN) |
13.6 kips (60.6 kN) |
0.5 lbs/ft (0.8 kg/m) |
B8U-04-S6C2 |
| 5/8” – 11 (16 mm) |
0.23 in2 (146 mm2) |
24.9 kips (110 kN) |
21.7 kips (96.5 kN) |
0.8 lbs/ft (1.3 kg/m) |
B8U-05-S6C2 |
| 3/4” – 10 (19 mm) |
0.33 in2 (216 mm2 |
36.7 kips (163 kN) |
32.1 kips (143 kN) |
1.2 lbs/ft (1.8 kg/m) |
B8U-06-S6C2 |
| 1” – 8 (25 mm) |
0.61 in2 (391 mm2) |
60.6 kips (269 kN) |
48.5 kips (216 kN) |
2.1 lbs/ft (3.2 kg/m) |
B8U-08-S6C2 |
| 1-1/4” – 7 (32 mm) |
0.97 in2 (625 mm2) |
92.0 kips (409 kN) |
63.0 kips (280 kN) |
3.4lbs/ft (5.0 kg/m) |
B8U-10-S6C2 |
| 1-1/2” – 6 (38 mm) |
1.41 in2 (906 mm2) |
126 kips (562 kN) |
70.2 kips (312 kN) |
5.1 lbs/ft (7.5 kg/m) |
B8U-12-S6C2 |
