For Export (for other than India) Email: export3@jfengg.com / Phone: +91-9833323751 / +91-22-23634937
JF Engineering is one of the leading manufacturers of ISO 3306-1 grade A2-70 bolts. These bolts are commonly used for keeping two objects or materials together. These bolts are generally used for commercial and industrial usage. These bolts are manufactured using stainless steel for long durability and strength.
We at JF Engineering make sure that superior quality material is being used to manufacture these bolts. We at JF Engineering make sure that every piece of equipment that is being manufactured is made in accurate size, shape, and dimensions.
The ISO 3506-1 Grade A2-70 bolts are manufactured using nickel, manganese, chromium, molybdenum, etc. These elements are known for providing excellent malleability and strength to the grade. They provide extreme stability and resistance. ISO 3506-1 grade A2-70 bolts provide resistance from corrosion, crevice corrosion, and stress cracking.
ISO 3506-1 grade A2-70 bolts are efficient and effective for high heat temperature applications and bad weather conditions. The grade also supports all kinds of heat treatments. It is undoubtedly the most used grade in various industries today. These bolts are thoroughly tested and certified for all types of uses. The grade is chemically and mechanically tested.
| Stainless Steel Fasteners Standard | ASTM A193 / A193, ASME SA193 / SA194 |
|---|---|
| Size | M16 - M120 |
| Length | UPTO 1200MM |
| Threads: | METRIC, BSW, BSF, UNC, UNF or as required |
| Standard: |
DIN: DIN 931, DIN 933, DIN 934, DIN 970 UTS – Unified Thread Standard : UNC, UNF, UNEF, UNS, NPT, NPTF ISO – International Organization for Standardization : ISO 4032, ISO 4033, JIS standards |
| Packing: | canton, pallet, Small Boxs / carton / pallet, or customer request |
|
Steel Group |
Steel Grade |
Chemical composition |
||||||||
|
mass fraction, % (maxima unless stated)) |
||||||||||
|
C |
Si |
Mn |
P |
S |
Cr |
Mo |
Ni |
Cu |
||
|
Austenitic |
A1 |
0.12 |
1 |
6.5 |
0.2 |
0.15 to 0.35 |
16 to 19 |
0.7 |
5 to 10 |
1.75 to 2.25 |
|
A2 |
0.10 |
1 |
2 |
0.05 |
0.03 |
15 to 20 |
- |
8 to 19 |
4 |
|
|
A3 |
0.08 |
1 |
2 |
0.045 |
0.03 |
17 to 19 |
- |
9 to 12 |
1 |
|
|
A4 |
0.08 |
1 |
2 |
0.045 |
0.03 |
16 to 18.5 |
2 to 3 |
10 to 15 |
4 |
|
|
A5 |
0.08 |
1 |
2 |
0.045 |
0.03 |
16 to 18.5 |
2 to 3 |
10.5 to 14 |
1 |
|
|
Steel Group |
Steel Grade |
Property Class |
TensileStrengthRma min. Mpa |
Stress at 0.2 % permanent strain Rp0.2a min. Mpa |
Elongation after fracture Ab min. mm |
|
Austenitic |
A1, A2 |
50 |
500 |
210 |
0.6d |
|
A3, A4 |
70 |
700 |
450 |
0.4d |
|
|
A5 |
80 |
800 |
600 |
0.3d |
Products are packaged to ensure that there is no damage during transit. In case of exports, standard export packaging is done in wooden cases. All pipes are marked with Grade, Lot No, Size, Degree and our trade mark. On special requests we can also, make custom marking on our products.
At JF Engineering Products LLP, all fasteners are subject to strict inspection at each stage of the production process, from starting material purchasing to product dispatch. They are visually examined for conformity to ASTM, ASME, MSS, DIN, EN, and JIS codes and standards. Upon request, official certified Inspection Agencies can be called in to witness the material reports, dimensions and quality conformity of products.
Delivery time and delivery dates are based on the "type and quantity" of steel ordered. Our sales team will provide a delivery schedule when quoting to you. On rare occasions the delivery schedule may change so please check with our sales department when placing any orders.
Orders will be sent out within 2-3 business days, and may take up to 5-10 business days in transit. If fastener is out of stock, orders may take up to 2-4 weeks to ship. JF Engineering Products LLP will notify buyer if this situation occurs..
JF Engineering Products LLP take immensure pleasure in introducing itself as one of the leading Manufacturer & Exporter of high quality fasteners to meet the customer ultimate requirements in the fields of:
| Chemical | Oil Mills | Petrochemical | Mining | Refineries | Construction |
| Fertilizers | Shipbuilding | Power Plant | Steel Plant | Nuclear Power | Offshore |
| Oil & Gas | Defence | Paper | Ports | Breweries | Railway |
| Cement | Engineering Co. | Sugar & | Government Org. etc. |