APEX offers a wide range of Stainless Steel Pipes & Tubes including welded/seamless straight, U-tubes and coils, welded & seamless pipes, large dia EFW pipes and rectangular and square sections in various finishes and grades. The company is perhaps one of the very few worldwide to offer as wide a product range. |
|
|
|
|
WELDED PIPES & TUBES |
|
|
APEX is a specialist in manufacturing welded pipes & tubes. With its enviable manufacturing infrastructure, vast experience and depth in understanding of the subject, its capabilities match with the best in business, globally. |
Equipments like fully integrated and automatic tube mills (with online annealing, eddy current testing, marking etc.), semi automatic tube mills, solution annealing furnaces, cold-drawing facilities, multiple support machines like straightening, cutting, ends facing, polishing, high capacity pickling & passivation setup, U-bending facility etc. give APEX a consummate versatility that is unparalleled. |
- Welded Pipes & Tubes product Range
TYPE
|
OD |
WALL
THICKNESS |
LENGTH |
SPECIFICATION
ETC. |
WELDING
METHOD |
OTHERS |
Pipes |
¼" NB
to
24" NB
(13.70 to 609.6mm) |
Sch 5s, 10s,
20, 40s |
4.5 To 6.1mtrs
Standard;
Customers' Specific
Requirements
Can Also Be Met. |
ASTM A312,
A778 |
Tig, Plasma Welding
Used. Circumferential
Welding May Be Used For
Double Random Lengths
(10 To 12 Mtrs) |
In Solution Annealed or
As welded condition.
Finish - Pickled.
Polishing done
on request. |
Heat Exchanger/
Condenser Tubes-
Straight or U-Bent |
5/8" to 2"
(15.88 to 50.8mm) |
0.5 to 4.0mm |
Upto 30 Mtrs;
U Tubes
As Per Customers'
Requirements |
ASTM A249,
A269, DIN
17455 & 17457 |
Tig, Laser
Welding Used |
In Solution
Annealed Condition.
Bright Annealing May
Also Be Done.
Finish - Pickled Or BA.
Polishing Done On Request. |
Small Diameter/
Instrumentation/
Heating
Element Tubing -
Straight or Coiled |
5/16" to 5/8"
(8 to 16mm) |
0.5 to 2.11mm |
Upto 30 Mtrs;
In Coiled Form
400 Mtr Lengths
Possible |
ASTM A269 |
Tig, Laser
Welding Used |
In Solution
Annealed Condition.
Bright Annealing May
Also Be Done.
Finish - Pickled Or BA.
Polishing Done On Request. |
Automotive Tubes |
12 to 51mm |
0.5 to 2.11mm |
As Per Customers'
Requirements |
Customer
requirements |
Tig, Laser
Welding Used |
In As Welded Or
Solution
Annealed Condition |
Sanitary Tubes for
Dairy & Pharma |
½" to 4"
(12.7 to 101.6mm) |
0.5 to 3.0mm |
4 to 6 mtrs |
ASTM A270,
DIN 11850 |
Tig, Laser
Welding Used |
In Solution Annealed Or
As Welded Condition.
Bright Annealing May
Also Be Done.
Finish - Outside/ Inside
Polishing Possible. |
Sugar
Industry Tubes |
1-3/8" to 4"
(35 to 101.6mm) |
1.0 to 2.11mm |
Upto 15 mtrs. |
ASTM A249,
A269,
EN 10217-7 |
Tig Welding Used |
In Solution Annealed
Or
As Welded Condition.
Finish Pickled |
Architectural
Round Tubes |
5/16" to 6"
(8 to 152.4mm) |
0.5 to 4.0mm |
4 To 6 Mtrs Or
Customer Specified |
ASTM A-554 |
Tig, Laser
Welding Used |
In As Welded Condition.
Finish Pickled.
Polishing Done
On Request |
Architectural
Square &
Rectangular
Tubes |
25 x 25 to
120 x 120mm |
2.0 to 4.0mm |
4 To 6 Mtrs Or
Customer Specified |
ASTM A-554 |
Tig Welding Used |
In As Welded
Condition.
Finish Pickled.
Polishing Done
On Request |
|
These products can be supplied in the following grades: |
Austenitic Grades: |
TP304, 304L, 316, 316L, 316Ti, 317L, 321, 321H, 347, 347H. |
|
Ferritic Grades: |
TP409,410, 430Ti, 436, 439M, 441, 444 |
|
Duplex: |
UNS 31803, UNS 32205, UNS 32304, LDX2101 |
|
|
Manufacturing of welded pipes & tubes is carried out on sophisticated tube mills, where the raw material, i.e. SS Strips, sourced from only the world-renowned sources is fed. The strips are welded into tubes/ pipes using TIG/ Plasma/ Laser welding. Under this process, the edges of the strip are heated and fused together in a protective atmosphere of Argon gas using a non-consumable electrode without the addition of any filler material. |
After cutting to size, and depending on the customer requirements, the tubes are then solution-annealed, straightened, cut to final size, pickled, passivated and polished before it is subjected to various tests, marked and released for dispatch. |
When tubes are made on fully automatic tube mills, the product is bright annealed, subjected to NDT, size checked, polished if required and stencil marked on line itself. |
|