Kobs India is involved in offering a widespread range of Forged Nipple Pipe Fittings at reasonable prices to our clienteles. As a supplier, manufacturer, stockiest, and exporter, we offer these Forged Barrel Fittings in different sizes and thickness.
They are specially designed to lift and transport the widest variety of loads in stores and warehouse. These fittings are strong torsion resistant steel construction. Meanwhile, forged steel fittings will ensure that neither fumes, nor the chemical or oil itself leaks from your piping connection. Kobs India is the lead manufacture, Exporter & Supplier of forged nipple that has being as per national and international standard quality of raw material and thus make sure of their durability and high quality.
Also, forged steel fittings are the best options when transferring oil, gas or chemicals. We supply a wide assortment of these fittings that is used in various piping, construction and engineering works. These Forged Fittings are can further be made-to-order as per the detailed requirements given by our valuable clienteles.
Stainless Steel : Grade: 304 (1.4301), 304L(1.4307), 304H (1.4948), 309 (1.4828), 309S, 310, 310S (1.4845), 316( 1.4401), 316H, 316L ( 1.4404 /1.4432) , 317, 317L (1.4438), 321 (1.4541), 321 H(1.4878), 347 (1.4550), 347H (1.4961), 904L (1.4539) |
C | Mn | Si | P | S | Cr | Ni | N | |
---|---|---|---|---|---|---|---|---|
304 (1.4301) | 0.07max | 2.0max | 0.75max | 0.045max | 0.03max | min: 18.0 max: 20.0 | min: 8.0 max: 10.5 | — |
304L(1.4307) | 0.03max | 2.0max | 0.75max | 0.045max | 0.03max | min: 18.0 max: 20.0 | min: 8.0 max: 12.0 | 0.10 max |
304H (1.4948) | min: 0.04 max:0.10 | Max: 2.0 | Max:0.75 | Max : 0.045 | Max: 0.030 | min: 18.0 max: 20.0 | min: 8.0 max: 10.5 | - |
SS 309 (1.4828) | SS 310 | SS 310S (1.4845) | |
---|---|---|---|
Ni | 14 max | 19 – 22 | 19 – 22 |
Cr | 23 max | 24 – 26 | 24 – 26 |
C | 0.20 max | 0.25 max | 0.08 max |
Fe | 60 max | Balance | |
Mn | 2 max | 2 max | 2 max |
Si | 1 max | 1.50 max | 1.50 max |
S | 0.030 max | 0.03 max | 0.03 max |
P | 0.045 max | 0.045 max | 0.045 max |
C | Mn | Si | P | S | Cr | Mo | Ni | N | |
---|---|---|---|---|---|---|---|---|---|
316( 1.4401) |
0.08 max |
2.0 max |
0.75 max |
0.045 max |
0.03 max |
min: 16.0 max: 18.0 |
min: 2.0 max: 3.0 |
min: 10.0 max: 14.0 |
0.10 max |
316L ( 1.4404 /1.4432) |
0.03 max |
2.0 max |
0.75 max |
0.045 max |
0.03 max |
min: 16.0 max: 18.0 |
min: 2.0 max: 3.0 |
min: 10.0 max: 14.0 |
0.10 max |
316H | - | - | - | - | - | 16.0 | 2.00 | 10.0 | - |
0.08 | 2 | 0.75 | 0.045 | 0.03 | 18.0 | 3.00 | 14.0 | 0.1 |
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
---|---|---|---|---|---|---|---|---|---|
317 | 0.08 max | 2 max | 1 max | 0.040 max | 0.03 max | 18 – 20 | 3 – 4 | 11 – 14 | - |
317L (1.4438) | 0.035 max | 2 max | 1 max | 0.040 max | 0.03 max | 18 – 20 | 3 – 4 | 11 – 15 | - |
% | Cr | Ni | C | Si | Mn | P | S | N | Ti | Fe |
---|---|---|---|---|---|---|---|---|---|---|
321 (1.4541) | min:17.0 max:19.0 |
min: 9.0 max:12.0 |
max:0.08 | max:0.75 | max:2.0 | max:0.045 | max:0.03 | max:0.10 | min:5*(C+N) max:0.70 |
Balance |
321 H(1.4878) | min:17.0 max:19.0 |
min: 9.0 max:12.0 |
min:0.04 max:0.10 |
min:18.0 max:20.0 |
max:2.0 | max:0.045 | max:0.03 | max:0.10 | min:5*(C+N) max:0.70 |
Balance |
C | Cr | Mn | Ni | P | S | Si | Cb/Ta | |
---|---|---|---|---|---|---|---|---|
347 (1.4550) | 0.08 max |
min: 17.0 max: 20.0 |
2.0 max |
min: 9.0 max: 13.0 |
0.04 max |
0.30 max |
0.75 max |
min:10x C max: 1.0 |
347H (1.4961) |
min: 0.04 max: 0.10 |
min: 17.0 max: 20.0 |
2.0 max | min: 9.0 max: 13.0 |
0.03 max | 0.30 max |
0.75 max |
min:10x C max: 1.0 |
C | Cr | Cu | Mn | Mo | Ni | P | S |
---|---|---|---|---|---|---|---|
Max | Max | Max | Max | ||||
0.02 | 19.0-23.0 | 2.0 | 4.0-5.0 | 23.0-28.0 | 0.045 | 0.035 | 1.0 |
Grade | Tensile Strength ksi (min) | Yield Strength 0.2% ksi (min) | Elongation % | Hardness (Brinell) MAX | Hardness (Rockwell B) MAX |
---|---|---|---|---|---|
304 (1.4301) | 75 | 30 | 40 | 201 | 92 |
304L(1.4307) | 70 | 25 | 40 | 201 | 92 |
304H (1.4948) | 75 | 30 | 40 | 201 | 92 |
Grade | Tensile Strength ksi (min) |
Yield Strength 0.2% ksi (min) |
Elongation % | Hardness (Brinell) MAX | Hardness (Rockwell B) MAX |
---|---|---|---|---|---|
316( 1.4401) |
75 | 30 | 40 | 217 | 95 |
316L ( 1.4404 /1.4432) |
70 | 25 | 40 | 217 | 95 |
316TI | 515(Mpa) | 205(Mpa) | 35 | 205 | 75 |
Density | 8.0 g/cm3 |
---|---|
Melting Point | 1454 °C (2650 °F) |
Tensile Strength | Psi – 75000 , MPa – 515 |
Yield Strength (0.2%Offset) | Psi – 30000 , MPa – 205 |
Elongation | 35 % |
Grade | Tensile Strength ksi (min.) |
Yield Strength 0.2% Offset ksi (min.) |
Elongation - % in 50 mm (min.) |
Hardness (Brinell) MAX |
---|---|---|---|---|
321 (1.4541)/321 H(1.4878) | 75 | 30 | 40 | 217 |
Grade | Tensile Strength ksi (MPa) min | Yield Strength 0.2% ksi offset ksi (MPa) min | Elongation (% in 50mm) min | Hardness (Brinell) MAX | Hardness (Rockwell B) MAX |
---|---|---|---|---|---|
347 (1.4550)/347H (1.4961) |
75 (515) |
30 (205) |
40 | 201 | 95 |
Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
---|---|---|---|---|---|
Rockwell B (HR B) | Brinell (HB) | ||||
904L (1.4539) | 490 | 220 | 36 | 70-90 typical | 150 |
Duplex Steel: Grade: 2205 (1.4507) Nickel : Grade: Nickel 200, Nickel 201 Super Duplex Steel: Grade: 2507 (UNS S32750), Z100 Inconel : Grade: Inconel 600 (2.4640), Inconel 601 (2.4851), Inconel 625 (2.4856), Inconel 718(2.4668) Titanium : Grade: Gr.1 (3.7025) , Gr.2 (3.7035) , Gr.3(3.7055) , Gr.5(3.7164/65), Gr. 7(3.7235) , Gr. 11 (3.7225) Monel : Grade: Monel 400, Monel K500 (2.4375), Monel R-405 Hastalloy : Grade: Hastalloy B2, Hastalloy B3, Hastalloy C22, Hastalloy C276, Hastalloy X Incoloy : Grade: Incoloy 800(2.4958), Incoloy 800H, Incoloy 800HT |
The principal methods of hot working are extrusion, drawing, forging and rolling. Rolling is the most extensive employed forming process, though some limitations may apply to the process. Rolling mainly consists of three major sub-categories: flat rolling, shape rolling (with specifically designed roll grooves) and pipe rolling (including piercing). Forging may be sub-categorized as hamming, pressing, etc. .
Forging may be performed under hammers, in mechanical presses and upsetters or by a method known as roll forging. Pressing generally includes the manufacture of forged articles in hydraulic presses. Extrusion usually is performed in hydraulic presses which force the hot steel through a die. Rolling is performed in rolling mills of a variety of types. .
The two principal reasons for perform metal forming at elevated temperatures (hot working) are to reduce the forming loads through the reduction of the resistance of the steel to deformation, and to develop preferred metallurgical structures for strength and ductility of the finish products.
The most appropriate manufacturing method of a product will be decided with consideration of its material, sizes, shape, use, standards and other properties.