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We offer a wide selection of SS 321H ASTM A312 Welded Pipe, and a diverse range of finish options to meet the performance and appearance requirements for most applications.Stainless Steel Pipe Stockist in Usa, Canada,UK, Uae,South Korea, Iran,Saudi Arabia, Malaysia, Italy, Singapore, Indonesia, Thailand, Germany,Australia, Turkey, Taiwan, Mexico, Vietnam, Spain, Netherlands, France, Poland, Brazil, Philippines, Japan, Kuwait, India, Philippines, United States,Usa,UK, Pakistan, Saudi Arabia(Ksa), United Arab Emirates(Uae), Indonesia, Sri Lanka, Iran, Hong Kong, Nigeria, Poland, Netherlands, Bahrain, Bangladesh, Belgium, Oman, Malaysia, Kuwait, Qatar, Canada, Argentina, Singapore, Japan, Thailand, Bahrain, Chennai, Gujarat, Mumbai, Turkey, Italy, South Korea | Depot & around the globe.
SS 321H | |
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Standards | Welded Pipe |
ASTM | A 312 |
ASME | SA 312 |
Product Range
Specifications: ASTM A/ASME SA213, A249, A269, A312, A358 CL. I to V ASTM A789/A790
Sizes (Seamless): 1/2" NB - 24" NB
Sizes (ERW): 1/2" NB - 24" NB
Sizes (EFW): 6" NB - 100" NB
Wall Thickness available:
Schedule 5S - Schedule XXS (heavier on request)
Other Materials Testing: NACE MR0175, H2 SERVICE, OXYGEN SERVICE, CRYO SERVICE, etc.
Dimensions: All Pipes is manufactured and inspected/tested to the relevant standards including ASTM, ASME and API etc.
Pipe/Tube/Tubing Type | NB Sizes | Sch 5 | Sch 10 | Sch 40 | Sch 80 | Sch 160 |
---|---|---|---|---|---|---|
SS 321H ASTM A312 Welded Pipe | 1/8″ | ![]() | ![]() | ![]() | ![]() | |
SS 321H ASTM A312 Welded Pipe | 1/4″ | ![]() | ![]() | ![]() | ![]() | |
SS 321H ASTM A312 Welded Pipe | 3/8″ | ![]() | ![]() | ![]() | ![]() | |
SS 321H ASTM A312 Welded Pipe | 1/2″ | ![]() | ![]() | ![]() | ![]() | ![]() |
SS 321H ASTM A312 Welded Pipe | 3/4″ | ![]() | ![]() | ![]() | ![]() | ![]() |
SS 321H ASTM A312 Welded Pipe | 1″ | ![]() | ![]() | ![]() | ![]() | ![]() |
SS 321H ASTM A312 Welded Pipe | 1 1/4″ | ![]() | ![]() | ![]() | ![]() | ![]() |
SS 321H ASTM A312 Welded Pipe | 1 1/2″ | ![]() | ![]() | ![]() | ![]() | ![]() |
SS 321H ASTM A312 Welded Pipe | 2″ | ![]() | ![]() | ![]() | ![]() | ![]() |
SS 321H ASTM A312 Welded Pipe | 2 1/2″ | ![]() | ![]() | ![]() | ![]() | ![]() |
SS 321H ASTM A312 Welded Pipe | 3″ | ![]() | ![]() | ![]() | ![]() | ![]() |
SS 321H ASTM A312 Welded Pipe | 4″ | ![]() | ![]() | ![]() | ![]() | ![]() |
SS 321H ASTM A312 Welded Pipe | 5″ | ![]() | ![]() | ![]() | ![]() | |
SS 321H ASTM A312 Welded Pipe | 6″ | ![]() | ![]() | ![]() | ![]() |
ASTM Standards: ASTM A312, ASTM A213, ASTM A269, ASTM A376
European Standards: DIN 17456, DIN 17458, EN 10216, EN 10297
Japanese Standards: JIS G 3459, JIS GS3463, GS3467, JIS G3448
Russian Standards: GOST 9940, GOST 9941
We firstly possess a perfectly developed transport by which we can deliver goods directly from the warehouse to the customer. Secondly, we direct traffic, which ensures a delivery from the factory to customers from 15 tons. SS 321H ASTM A312 Welded Pipe that are not in stock at our own warehouse are based on the star traffic from other sites - every day! We aim at providing professional customer service with one-stop purchasing, along with superior quality control, competitive price, fast lead time and convenient transportation.
While marking we choose a specific item number as well different color shade to differentiate steel grades. We mark SS 321H ASTM A312 Welded Pipe as needed with the most suitable & visible marking technique.
We deliver from stock and warehousing as well as directly from the mill.
Packaging is an integral part of the product. It guarantees that the SS 321H ASTM A312 Welded Pipe is delivered to the customer in the required quality. For smaller orders the size of the SS 321H ASTM A312 Welded Pipe bundle depends on the no. of Tubes ordered, for larger orders the tubes are packed into individual bundles and in such a way that the maximum weight of 4000kg per bundle is not excedded. Bundle tied down with steel tape. Bundle tied down by steel strap underlaid by tapaten.
We can also provide SS 321H ASTM A312 Welded Pipe wooden box packing, cardboard boxes, plastic wrapping, using hardened paper with PE meshing (used as protection against mechanical damages of tubes), into tapaten and polyethylene sheet etc.
ISO 9001:2008 Certified company
Stainless Steel SS 321H | |
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AISI | 321H |
UNS | S32109 |
Werkstoff Nr. | 1.4878 |
Density | 8.0 g/cm3 |
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Melting Point | 1454 °C (2650 °F) |
Tensile Strength | Psi – 75000 , MPa – 515 |
Yield Strength (0.2%Offset) | Psi – 30000 , MPa – 205 |
Elongation | 35 % |
SS 321H | |
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Ni | 9 – 12 |
Cr | 17 – 19 |
C | 0.04 – 0.10 |
N | |
Fe | Balance |
Mn | 2 max |
Si | 0.75 max |
S | 0.03 max |
P | 0.045 max |
Ti | 4xC min 0.60% max |
Reliable Pipe & Tubes supply SS 321H ASTM A312 Welded Pipe to
Reliable Pipe & Tubes supply other products to
Seamless & Welded tubes we export to:
Formula for Good Business
Quality SS 321H ASTM A312 Welded Pipe + Prompt Service + Better Rates = Customers’ Satisfaction
ASME B36.19 Pipe Size Chart – pipes weight in kg/meter by pipe NPS and schedule
NPS | OD | Schedule | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Schedule 5S | Schedule 10S | Schedule 40S | Schedule 80S | ||||||||||
(mm) | (inch) | WT / WEIGHT | |||||||||||
mm (in) | kg/m | mm (in) | kg/m | mm (in) | kg/m | mm (in) | kg/m | ||||||
1/8 | 10.3 | 0.405 | – | – | 1.25 (0.049) | 0.28 | 1.73 (0.068) | 0.37 | 2.42 (0.095) | 0.47 | |||
1/4 | 13.7 | 0.540 | – | – | 1.66 (0.065) | 0.49 | 2.24 (0.088) | 0.63 | 3.03 (0.119) | 0.80 | |||
3/8 | 17.2 | 0.675 | – | – | 1.66 (0.065) | 0.63 | 2.32 (0.091) | 0.85 | 3.20 (0.126) | 1.10 | |||
1/2 | 21.3 | 0.840 | 1.65 (0.065) | 0.81 | 2.11 (0.083) | 1.00 | 2.77 (0.109) | 1.27 | 3.74 (0.147) | 1.62 | |||
3/4 | 26.7 | 1.050 | 1.65 (0.065) | 1.02 | 2.11 (0.083) | 1.28 | 2.87 (0.113) | 1.68 | 3.92 (0.154) | 2.20 | |||
1 | 33.4 | 1.315 | 1.65 (0.065) | 1.30 | 2.77 (0.109) | 2.09 | 3.38 (0.133) | 2.50 | 4.55(0.179) | 3.24 | |||
1 1/4 | 42.2 | 1.660 | 1.65 (0.065) | 1.66 | 2.77 (0.109) | 2.69 | 3.56 (0.140) | 3.39 | 4.86 (0.191) | 4.47 | |||
1 1/2 | 48.3 | 1.900 | 1.65 (0.065) | 1.91 | 2.77 (0.109) | 3.11 | 3.69 (0.145) | 4.06 | 5.08 (0.200) | 5.41 | |||
2 | 60.3 | 2.375 | 1.65 (0.065) | 2.40 | 2.77 (0.109) | 3.93 | 3.92 (0.154) | 5.45 | 5.54 (0.218) | 7.49 | |||
2 1/2 | 73.0 | 2.875 | 2.11 (0.083) | 3.69 | 3.05 (0.120) | 5.26 | 5.16 (0.203) | 8.64 | 7.01 (0.276) | 11.4 | |||
3 | 88.9 | 3.500 | 2.11 (0.083) | 4.52 | 3.05 (0.120) | 6.46 | 5.49 (0.216) | 11.3 | 7.62 (0.300) | 15.3 | |||
3 1/2 | 101.6 | 4.000 | 2.11 (0.083) | 5.18 | 3.05 (0.120) | 7.41 | 5.74 (0.226) | 13.6 | 8.08 (0.318) | 18.6 | |||
4 | 114.3 | 4.500 | 2.11 (0.083) | 5.84 | 3.05 (0.120) | 8.37 | 6.02 (0.237) | 16.1 | 8.56 (0.337) | 22.3 | |||
5 | 141.3 | 5.563 | 2.77 (0.109) | 9.46 | 3.41 (0.134) | 11.6 | 6.56 (0.258) | 21.8 | 9.53 (0.375) | 31.0 | |||
6 | 168.3 | 6.625 | 2.77 (0.109) | 11.3 | 3.41 (0.134) | 13.9 | 7.12 (0.280) | 28.3 | 10.9 (0.432) | 42.6 | |||
8 | 219.1 | 8.625 | 2.77 (0.109) | 14.8 | 3.76 (0.148) | 20.0 | 8.18 (0.322) | 42.5 | 12.7 (0.500) | 64.6 | |||
10 | 273.1 | 10.750 | 3.41 (0.134) | 22.7 | 4.20 (0.165) | 27.8 | 9.28 (0.365) | 60.4 | 12.7 (0.500) | 81.5 | |||
12 | 323.9 | 12.750 | 3.97 (0.156) | 31.3 | 4.58 (0.180) | 36.1 | 9.53 (0.375) | 73.9 | 12.7 (0.500) | 97.4 |
Allowed Outside Diameter Tolerance | ||||
---|---|---|---|---|
Over | Under | |||
inches | mm | inches | mm | |
NPS 1/8 to 1½ DN 6 to 40 OD 10.3 to 48.3, mm | 1/64 | 0.4 | 1/64 | 0.4 |
Over 1½ to 4 DN 40 to 100 OD 48.3 to 114.3, mm | 1/32 | 0.8 | 1/32 | 0.8 |
Over 4 to 8 DN 100 to 200 OD 114.3 to 219.1, mm | 1/16 | 1.6 | 1/32 | 0.8 |
Over 8 to 18 DN 200 to 450 OD 219.1 to 457, mm | 3/32 | 2.4 | 1/32 | 0.8 |
Over 18 to 26 DN 450 to 650 OD 457 to 660, mm | 1/8 | 3.2 | 1/32 | 0.8 |
Tolerance, % from Nominal | ||
---|---|---|
Over | Under | |
NPS 1/8 to 2½, incl, all t/D ratios DN 6 to 65 OD 10.3 to 73.0, mm | 20.0 | 12.5 |
NPS 3 to 18, incl, t/D up to 5% DN 80 to 450 OD 88.9 to 457, mm | 22.5 | 12.5 |
NPS 3 to 18, incl, t/D > 5% DN 80 to 450 OD 88.9 to 457, mm | 15.0 | 12.5 |
NPS 20 and larger, incl, welded, all t/D ratios DN 500 OD 508, mm | 17.5 | 12.5 |
NPS 20 and larger, incl, seamless, t/D up to 5% DN 500 OD 508, mm | 22.5 | 12.5 |
NPS 20 and larger, incl, seamless, t/D > 5% DN 500 OD 508, mm | 15.0 | 12. |
Should be within -10% to +10% tolerance, as a rule of thumb (-3/+3% should be acceptable).
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