SS WELDED PIPES & TUBES
Nickel Alloy
RANGE
15 NB UP TO 1200 NB IN SCH 5S , 10S ,10, 20 , 40S , 40 , STD , 60 , 80S , 80 , XS , 100 , 120 , 140
, 160 & XXS
FORM
SEAMLESS / ERW / WELDED IN ROUND & SQUARE.
Nickel Alloy
ASTM / ASME SB 163 UNS 2200 ( NICKEL 200 )
ASTM / ASME SB 163 UNS 2201 (NICKEL 201 ),
ASTM / ASME SB 163 / 165 UNS 4400 (MONEL 400 )
ASTM / ASME SB 464 UNS 8020 ( ALLOY 20 / 20 CB 3 ),
ASTM / ASME SB 704/705 UNS 8825 INCONEL (825)
ASTM / ASME SB 167 / 517 UNS 6600 (INCONEL 600 )
ASTM / ASME SB 167 UNS 6601 ( INCONEL 601 ),
ASTM / ASME SB 704 /705 UNS 6625 (INCONEL 625)
ASTM / ASME SB 619/622/626 UNS 10276 ( HASTELLOY C 276 )
Stainless Steel
RANGE
15 NB UP TO 1200 NB IN SCH 5S , 10S ,10, 20 , 40S , 40 , STD , 60 , 80S , 80 , XS , 100 , 120 , 140
, 160 & XXS
FORM
SEAMLESS / ERW / WELDED IN ROUND & SQUARE .
Stainless Steel
ASTM / ASME SA 312 GR. TP 304 , 304L , 304H, 309S ,309H , 310S, 310H , 316 , 316TI , 316H , 316 LN ,
317 , 317L , 321 , 321H , 347 , 347 H , 904L .
ASTM / ASME SA 358 CL 1 & CL 3 GR . 304 , 304L , 304H, 309S ,309H , 310S, 310H , 316 , 316H ,
321 , 321H , 347.
| S.S. Welded Pipes & Tubes | |
| Introduction and Scope |
This cover electric - fusion welded austenitic Chromium-nickel stainless steel pipe suitable for corrosive or high temperature service, both. Five classes of pipe are covered under this specification: Class 1: Double side welded using filler material and 100% radio graphed. |
| Materials |
This specification covers 19 grades of material steel. The plate material comply with the requirements of ASTM A - 240. Most commonly manufactured grades are 304, 304L, 304H, 316, 316L 310. |
| Size Range |
OD: 8" NB (219.08 mm) to 36"NB (914.04 mm) Thickness: NB Size in Schedule 5, 10, 10s, 40, 40s Length: As per customer specification. |
| Process Of Manufacture |
The pipes are manufacutred from levelled plates which are edge bevelled and progessively "O" formed on hydraulic presses. The edges of the pipe are either manually TIG welded or continuously welded on Track and Boom. Weld portion is radiographed as per requirements. Annealing of pipe is carried out on continuous furnace. Pipe is further straightened, sized, end finished, pressure tested, pickled and passivated, marked and packed. |
| Tolerances |
OD: +/- 0.5% of specified diameter based on circumferential measurement.
Thickness: Minimum thickness at any point not more than 0.3 mm under nominal Thick. Out of roundness: Difference between maximum & minimum OD% |
| Test |
Transverse bend weld tests. Transverse tension test to ASME code IX para QW 150. Hydrostatic Test ASTM A-530. Radiographic classes1,3,4 to ASME Code VIII para UW 51, Class 5 to ASME. Sec. VIII para UW 52. |
| Marking |
All pipes are marked as folows: ASTM A-358, Class, Grade, Size , Schedule No., Heat No. |
| Standard Weight Chart for S.S. Welding pipe & Tubes | ||||||||||
| Sl no. | Outside Dia | Wall Thickness (in mm) | ||||||||
| SCH 5 | SCH10S | SCH10 | SCH 40S | |||||||
| Inch | MM | Thick | Kg/mtr | Thick | Kg/mtr | Thick | Kg/mtr | Thick | Kg/mtr | |
| 1 | 8" | 219.08 | 2.77 | 14.99 | 3.76 | 20.25 | 3.76 | 20.25 | 8.18 | 43.16 |
| 2 | 10" | 273.05 | 3.4 | 22.97 | 4.19 | 28.2 | 4.19 | 28.2 | 9.27 | 61.2 |
| 3 | 12" | 323.85 | 3.96 | 31.72 | 4.57 | 36.53 | 4.57 | 36.53 | 9.53 | 74.92 |
| 4 | 14" | 355.60 | 3.96 | 34.87 | 4.78 | 41.97 | 6.35 | 54.77 | 9.53 | 82.55 |
| 5 | 16" | 406.40 | 4.19 | 42.18 | 4.78 | 48.05 | 6.35 | 62.74 | 9.53 | 94.66 |
| 6 | 18" | 457.25 | 4.19 | 47.15 | 4.78 | 54.12 | 6.35 | 70.71 | 9.53 | 106.78 |
| 7 | 20" | 508.00 | 4.77 | 60.13 | 5.54 | 69.67 | 6.35 | 78.68 | 9.53 | 118.9 |
