ASME SA249 TP321H Stainless Steel Tube




ASTM A249 SS 321H Tube Supplier, DIN 1.4878 Welded Tube

SS 321H Welded Tubes Supplier

Superior Steel Overseas is highly acclaimed manufacturer, supplier and exporer of SS 321H Welded Tube .We are also largest independent Stockholders and Processors of ASTM A249 321 stainless steel (1.4878).With a large stock range of ASTM A249 Stainless Steel 321H Welded Tube and excellent processing capabilities we are able to supply most industrial projects whether stock items or custom made products.  ASTM A249 321H Welded Condenser Tube  are available in diverse sizes, grades and shapes, and are quality passed and tested as per international standards.ASTM A249 Stainless Steel 321H Heat Exchanger Tube are mostly used in various industries like is reflected in our client portfolio and spans many different industries, such as architectural, aerospace, waste water treatment, pharmaceutical, petrochemical, cosmetics, brewery, food and drink processing and off shore petroleum. ASTM A249 SS 321H Square Tube in different specifications and designs as per requirements of our customers. ASTM A249 Stainless Steel 321H Boiler Tubes maintain its strength and toughness at sub-zero temperatures. Our range of ASTM A249 SS 321H Tubing is extremely economical, and thus making our products highly valuable among our clients.  ASTM A249 Stainless Steel 321H Cold Drawn Tube are tested in accordance to internationally recognized standards or our own more stringent internal test procedures, which is developed considering the harsh field conditions. Buy ASME SA249 TP321H Welded Tubing at affordable price from us.

ASTM A249 TP321H Stainless Steel Tube Specification

Type: Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes

Grades: TP304, TP304L, TP304H

Size: 1/8” NB to 5” NB, 1/4” OD to 5” OD sizes stainless steel seamless tubes also available

Length: Up to 6 meters, custom cut lengths

Thickness: 1mm to 13mm, SCH 5/5S, 10/10S, 20/20S, 40/40S, 80/80S, 120/120S, 160/160S as per ANSI B36.19/36.10

Finish: No.1 Pickled Finish, No.4 finish, BA Finish, Electropolished Pipes

Delivery Condition: Hot Finish, Cold Finish, Bright Annealed, Polished, Annealed and Pickled, Passivated, Stress Relived

ASTM A249 321H Tubing Sizes

NB SIZES SCH 5 SCH 10 SCH 40 SCH 80 SCH 160
1/8″
available pipe tube size
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1/4″
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3/8″
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1/2″
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available pipe tube size
available pipe tube size
available pipe tube size
3/4″
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available pipe tube size
available pipe tube size
1″
available pipe tube size
available pipe tube size
available pipe tube size
available pipe tube size
available pipe tube size
1 1/4″
available pipe tube size
available pipe tube size
available pipe tube size
available pipe tube size
available pipe tube size
1 1/2″
available pipe tube size
available pipe tube size
available pipe tube size
available pipe tube size
available pipe tube size
2″
available pipe tube size
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2 1/2″
available pipe tube size
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3″
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4″
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5″
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available pipe tube size
6″
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ASTM A249 SS 321H Tube Dimensions

Dimensions Wall Weight per Dimensions Wall Weight per
(mm) (mm) metre (kg) (mm) (mm) metre (kg)
12.7 x 12.7 1.20 0.44 40 x40 1.20 1.49
12.7 x 12.7 1.50 0.55 40 x40 1.50 1.85
15 x 15 1.20 0.53 40 x40 2.00 2.45
15 x 15 1.50 0.65 40 x40 3.00 3.75
20 x 20 1.20 0.71 50 x50 1.50 2.32
20 x 20 1.50 0.88 50 x50 2.00 3.08
20 x 20 2.00 1.19 50 x50 3.00 4.65
25 x 25 1.20 0.92 60 x60 2.00 3.71
25 x 25 1.50 1.14 60 x60 3.00 5.49
25 x 25 2.00 1.49 70 x70 3.00 6.53
25 x 25 3.00 2.20 80 x80 2.00 4.98
30 x 30 1.20 1.10 80 x80 3.00 7.53
30 x 30 1.50 1.37 100 x 100 2.00 6.40
30 x 30 2.00 1.84 100 x 100 3.00 9.53
30 x 30 3.00 2.72

SA 249 TP321H Chemical Composition

Grade C Mn Si P S Cr Mo Ni N Other
321H min. 
max
0.04 
0.10
2.00 0.75 0.045 0.030 17.0 
19.0
9.0 
12.0
Ti=4(C+N) 
0.70

ASTM A249 TP321H Stainless Steel Welded Tube Physical Properties

Grade Density (kg/m3) Elastic Modulus (GPa) Mean Coefficient of Thermal Expansion (μm/m/°C) Thermal Conductivity (W/m.K) Specific Heat 0-100°C (J/kg.K) Electrical Resistivity (nΩ.m)
0-100°C 0-315°C 0-538°C at 100°C at 500°C
321H 8027 193 16.6 17.2 18.6 16.1 22.2 500 720

ASTM A249 Stainless Steel 321H Welded Tube Mechanical Properties

Grade Tensile Strength (MPa) min Yield Strength 0.2% Proof (MPa) min Elongation (% in 50mm) min Hardness
Rockwell B (HR B) max Brinell (HB) max
321H 515 205 40 95 217

ASTM A249 SS 321H Equivalent

Grade UNS No Old British Euronorm Swedish SS Japanese JIS
BS En No Name
321H S32109 321S51 1.4878 X10CrNiTi18-10 SUS 321H

SS 321H Tube ASTM A249 Tolerances

OD Size
Inches
Tolerances, Inches
OD, 
Inches
Wall
Cut
Length (a), In.
Less than 1
±0.004
All Sizes
± 10%
+1/8–0
1 to 1-1/2
±0.006
Over 1-1/2 to 2
±0.008
Over 2 to 2-1/2
±0.010
+3/16–0
Over 2-1/2 to 3
±0.012
Over 3 to 4
±0.015
Over 4 to 5
+0.015
– 0.025
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