ASTM A193 B7 High-Tensile Threaded Rod
1.ASTM A193 B7 theaded rod property
Grade |
Sizes |
Tensile ksi, min |
Yield, ksi, min |
Elong, %, min |
RA % min |
HBW |
HRC
|
A193 B7 |
Up to 2-1/2 |
125 |
105 |
16 |
50 |
321 max |
35 max |
2-5/8 - 4 |
115 |
95 |
16 |
50 |
4-1/8 - 6 |
100 |
75 |
18 |
50 |
2.ASTM A193 B7 chemical composition
Element |
B7 (AISI 4140) |
Carbon |
0.38 - 0.48% |
Manganese |
0.75 - 1.00% |
Phosphorus, max |
0.04% |
Sulfur, max |
0.04% |
Silicon |
0.15 - 0.35% |
Chromium |
0.80 - 1.10% |
Molybdenum |
0.15 - 0.25% |
3.Specifica6tions;
Surface Treatment: |
Zinc-plating, Geomet, Dacromet, Black Oxide, Phosphatizing, Powder Coating
and Electrophoresis.
|
Standard: |
ISO, DIN, ANSI, JIS, BS and Non-standard.
|
Products Range: |
3/8"-4"
|
Sample Service: |
Samples for standard stainless steel fasteners are all in free.
|
Lead Time: |
10-45 days after order confirmed
|
MOQ |
10PCS per sizes
|
A193 Mechanical Properties
Grade |
Size |
Tensile ksi, min |
Yield, ksi, min |
Elong, %, min |
RA % min |
HBW |
HRC |
B7 |
Up to 2-1/2 |
125 |
105 |
16 |
50 |
321 max |
35 max |
2-5/8 - 4 |
115 |
95 |
16 |
50 |
4-1/8 - 7 |
100 |
75 |
18 |
50 |
B8 Class 1 |
All |
75 |
30 |
30 |
50 |
223 max |
35 max |
B8M Class 1 |
All |
75 |
30 |
30 |
50 |
223 max |
96 max |
B8 Class 2 |
Up to 3/4 |
125 |
100 |
12 |
35 |
321 max |
35 max |
2007/8/1 |
115 |
80 |
15 |
35 |
1-1/8 - 1-1/4 |
105 |
65 |
20 |
35 |
1-3/8 - 1-1/2 |
100 |
50 |
28 |
45 |
B8M Class 2 |
Up to 3/4 |
110 |
95 |
15 |
45 |
321 max |
35 max |
2007/8/1 |
100 |
80 |
20 |
45 |
1-1/8 - 1-1/4 |
95 |
65 |
25 |
45 |
1-3/8 - 1-1/2 |
90 |
50 |
30 |
45 |