Stainless Steel Pipes
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Tubewell Fitting Industries are among the pre-eminent organizations, involved in manufacturers, suppliers, stockists and exporter Stainless Steel Pipes. Available in different lengths, thicknesses and sizes, these Stainless Steel Pipes are widely demanded by various industries like food & beverage, chemical, petrochemical, pharmaceutical and cosmetics. In addition to this, we provide tailor-made solution for all our offered Stainless Steel pipes as per customers’ requirements.
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. Â Â Â Â Â Â What is Stainless Steel?In metallurgy, stainless steel, also known as inox steel or inox from French "inoxydable", is a steel alloy with a minimum of 10.5% chromium content by mass.Stainless steel does not readily corrode, rust or stain with water as ordinary steel does. However, it is not fully stain-proof in low-oxygen, high-salinity, or poor air-circulation environments.There are different grades and surface finishes of stainless steel to suit the environment the alloy must endure. Stainless steel is used where both the properties of steel and corrosion resistance are required.Stainless steel differs from carbon steel by the amount of chromium present. Unprotected carbon steel rusts readily when exposed to air and moisture. This iron oxide film (the rust) is active and accelerates corrosion by forming more iron oxide; and, because of the greater volume of the iron oxide, this tends to flake and fall away. Stainless steels contain sufficient chromium to form a passive film of chromium oxide, which prevents further surface corrosion by blocking oxygen diffusion to the steel surface and blocks corrosion from spreading into the metal's internal structure.Due to the similar size of the steel and oxide ions, they bond very strongly and remain attached to the surfaceSpecification
Type Seamless Pipe, ERW Pipe, EFW Pipe, Coated Pipe Standard ASTM A-312, A-790, API 5LC, A-554, A-778, A-790 ASTM A312, ASTM A358, ASTM A813, ASTM A814, ANSI B36.19, AWS A5.9, SAE J1086, PA 15096-0001, A262 , A370, A941, A999/A999M, A1016/A1016M, E112, E381, E527, ASTM A-269, A-268, A-213, A-789, ASTM A-312, A-790, B677 Equivalent to ASME, EN, JIS Etc Grade TP-304, 304L, 304H, 304LN, 304N, TP-310, 310S, TP-316, 316L, 316N, 316LM, 316H, 316N, 36Ti, TP317, 317L, TP-317LM, TP-321, 321/H, TP-347, 347/H, 410, TP405, T 446, 904L, S31260, S31500, S31803, S32550, S32750, S32760, TP309Cb, TP310Cb and TP348 etc. ICS Code ICS Number Code 23.040.10 (Iron and steel pipes) UNSPSC Code UNSPSC Code 40171621(Industrial welded stainless steel pipe); 40171622(Industrial seamless stainless steel pipe) Quality Assurance Value Added Services Test Certificates Manufacturer Test Certificate as per EN 10204 / 3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report Keywords Austenitic Stainless Steel - Cold Working - Corrosive Service Applications - Forming - High-Temperature Service Applications - High-Temperature Services - Seamless Pipes And Tubes - Seamless Steel Pipes - Stainless Steel Pipes - Tubular Products - EFW Pipes And Tubes - Welded Steel Pipes Chemical Composition
S.S. 301 303 304 304L 309 309s 310s 316 316L 321 347 Carbon 0.15 0.15 0.08 0.03 0.20 0.08 0.08 0.08 0.03 0.08 0.08 Manganese 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 2.00 Silicone 1.00 1.00 1.00 1.00 1.00 1.00 1.5 1.00 1.00 1.00 1.00 Chromium 16/18 17/19 18/20 18/02 22/24 22/24 24/26 23/26 16/18 17/19 17/19 Nickel 6.0/8.0 8.0/10 8.0/12 8.0/12 12/15 12/15 19/22 10/14 10/14 9.0/12 9/13 Molybdenum        2.0/3.0 2.0/3.0   Phosphorus 0.045 0.20 0.045 0.045 0.045 0.045 0.045 0.045 0.045 0.045 0.045 Nitrogen            Suiphur 0.03 0.15MIN 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.03 Selenium            Aluminium            Titanium          5XC  Cb+Ta           10XC Tensile
Strength110 90 85 60 90 90 95 85 78 87 92 2% Yield
Strength40 35 35 30 40 40 40 35 30 35 35 Elongation
in 2'60 50 55 55 45 45 45 55 55 55 50 Rockwell 85 84 80 76 85 85 87 80 76 80 84 Brinell 165 160 150 140 165 165 170 150 145 150 160 Â Â Â Â Â Â Â Â Â Â Â Â Â Â En58E Â Â Â Â Â En58J&H Â En58C Â Â X12
CrNi17.7Â X5
CrNi18.9X5
CrNi18.8Â Â Â x5
CrNiMo18.12X2
CrNiMo19.1Â Â Â AUST. AUST. AUST. AUST. AUST. AUST. AUST. AUST. AUST. AUST. AUST. Chemical Composition AISI Wrought Stainless Steel
Physical corrosion resistance & other properties of important S.S.Grades S.S.Grade301 303 304 304L 309 309S 310S 316 316L 321 347 Density8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 8.0 Sp.Elec. Resist 20C micro72 72 72 72 78 78 78 74 74 72 73 Sp. Heat (0-100c)0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Ther. Conductivity16.3 16.3 16.3 16.3 14.2 14.2 14.2 16.3 16.3 16.3 16.3  17.0 17.2 17.3 17.3 15.0 15.0 15.9 15.9 15.9 16.6 16.6 Mild waterX X X X X X X X X X X IndustrialX X X X X X X X X X X MarineX X X X X X X X X X X Salt Water      X X    MildX X X X X X X X X X X OxidisingX X X X X X X X X X X Reducing       X X   Abrasion ResistanceGood Good Good Good Good Good Good Good Good Good Good Cold FormingGood Excel Excel Good Good Good Good Good Good Good Good WeldabilityExcel Excel Excel Excel Good Excel Excel Excel Excel Excel Excel Melting Flange 1400 1450 1370 1400 Scaling Temp800 900 900 900 1100 1100 1100 900 900 900 900 300 Series Austinetic Physical Properties
Type UNS TensileÂ
(ksi) minYieldÂ
(ksi) minElongationÂ
minHardnessÂ
(Brinell) maxHardness
(Rockwell B) max302 S30200 75 30 40% in 2" 183 88 304* S30400 75 30 40% in 2" 183 88 304L* S30403 70 30 40% in 2" 183 88 309 S30900 75 30 40% in 2" 217 95 309S S30908 75 30 40% in 2" 217 95 310 S31000 75 30 40% in 2" 217 95 310S S31008 75 30 40% in 2" 217 95 316* S31600 75 30 40% in 2" 217 95 316L* S31603 70 25 35% in 2" 217 95 317 S31700 75 30 35% in 2" 217 95 317L S31703 75 30 35% in 2" 217 95 321 S32100 75 30 40% in 2" 183 88 347 S34700 75 30 40% in 2" 183 88 400 Series Martensitic Physical Properties
Type UNS TensileÂ
(ksi) minYieldÂ
(ksi) minElongationÂ
minHardnessÂ
(Brinell) maxHardness
(Rockwell B) max410* S41000 65 30 20% in 2" 217 95 410S S41008 60 30 22% in 2" 183 88 416 S41600 75 40 30-25% in 2" Â - 82 420 S42000 95 60 30-25% in 2" Â - 92 430 S43000 65 30 22% in 2" 183 88 440C S44004 Â - -Â -Â -Â Â - Mechanical Properties
TypeTemperTensile
Strength
ksiYield
Strength
ksiMinimum
Elongation inÂ
2" (%)Rockwell (1)
Hardness304
304LAnnealed
Half Hard
Full Hard100 max.
110-140
140 min.25-45
70-110
110 min.35
15
7B 90 max.
B 93-C 30
C 22 min.310 Annealed
Half Hard
Full Hard100 max.
115-135
140 min.35-55
75-115
115 min.35
15
5B 95 max.
B 95-C 26
C 24 min.316
316LAnnealed
Half Hard
Full Hard100 max.
110-140
140 min.30-50
70-110
110 min.35
15
6B 95 max.
B 95-C 26
C 24 min.321 Annealed
Half Hard
Full Hard100 max.
110-140
140 min.35-55
80-120
120 min.35
15
6B 92 max.
B 95-C 26
C 24 min.347 Annealed
Half Hard
Full Hard100 max.
110-140
140 min.35-55
80-120
120 min.35
15
6B 92 max.
B 95-C 26
C 24 min.403
410Annealed
Half Hard
Full Hard85Â max.
85-100
100 min.30-50
65-85
85 min.35
15
5B 95 max.
B 90-B 100
C 96 min.430 Annealed
Half Hard
Full Hard85Â max.
82-97
98 min.35-50
60-90
85 min.35
15
5B 90 max.
B 85-98
C 93 min.446 Annealed
Half Hard
Full Hard95Â max.
95-115
115 min.40-75
70-90
85 min.35
15
4B 95 max.
B 90-C 24
B 96 min.A-286 Annealed
Half Hard
Full Hard1010 max.
115-140
140 min.35-65
80-110
110 min.35
15
3B 95 max.
B 96-C 26
C 26 min.Stainless Steel Pipe Tolerances
NPS Designator Permissible Variations in Outside Diameter Over In. Under In. 1/8 to 1-1/2, incl 1/64 (0.015) 1/32 (0.031) Over 1-1/2 to 4, incl 1/32 (0.031) 1/32 (0.031) Over 4 to 8, incl 1/16 (0.062) 1/32 (0.031) Over 8 to 18, incl 3/23 (0.093) 1/32 (0.031)
