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Difference Between ASTM A213 and ASTM A312




What is ASTM A213 and ASTM A312?

ASTM A213 / A213M Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
ASTM A312 / A312M Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipe

Differences of ASTM A213 And ASTM A312
Standard ASTM A213 ASTM A312
Basic Difference Seamless Steel Tubing Welded and Seamless Steel Pipe
Wall Thickness Mostly minimum wall thickness (0, +20%), also accept average wall thickness (+/-10%) Average Wall Thickness
Hardness 192HBW OR 90HRB Maximum Do not require
Nickel of 316H 11.0 - 14.0% 10.0 - 14.0%
Applications Heat exchangers and Superheaters to maintain the transmission temperature of the different substances. Stainless steel pipe for high-temperature and general corrosive service.

Standard
Item
ASTM A213 ASTM A269 ASTM A312
Grade 304  304L 304H   304N  304LN
316  316L 316Ti   316N  316LN
321  321H   310S   310H  309S
317  317L 347 347H
304  304L 304H 304N 304LN
316  316L 316Ti 316N  316LN
321 321H  310S 310H  309S
317  317L 347 347H
304  304L 304H   304N  304LN
316  316L 316Ti   316N  316LN
321  321H  310S   310H  309S
317  317L  347 347H
Yield Strength
(Mpa)
≥170;≥205 ≥170;≥205 ≥170;≥205
Tensile Strength
(Mpa)
≥485;≥515 ≥485;≥515 ≥485;≥515
Elongation(%) ≥35 ≥35 ≥35
Hardness
(Mpa)
192HBW OR 90HRB Maximum 192HBW OR 90HRB Maximum Do not required
Hydrostatic Test OD(mm) Pressure max
(MPa)
OD(mm) Pressure max
(MPa)
OD(mm) Pressure max
(MPa)
D<25.4, 7Mpa D<25.4, 7Mpa D≤88.9, 17MPa
25.4≤D<38.1, 10Mpa 25.4≤D<38.1, 10Mpa
38.1≤D<50.8, 14Mpa 38.1≤D<50.8, 14Mpa
50.8≤D<76.2, 17MPa 50.8≤D<76.2, 17MPa D>88.9, 19MPa
76.2≤D<127, 24MPa 76.2≤D<127, 24MPa
D≥127, 31Mpa D≥127, 31Mpa
P=220.6t/D P=220.6t/D P=2St/D S=50%Rp0.2
Intergranular Corrosion Test ASTM A262 E ASTM A262 E ASTM A262 E
Eddy Current Test ASTM E426 ASTM E426 ASTM E426
O.D. Tolerance
(mm)
O.D. and
Tolerance
O.D. and
Tolerance
O.D. and
Tolerance
D<25.4 +/-0.10 D<38.1 +/-0.13 10.3≤D≤48.3 +0.40/-0.80
25.4≤D≤38.1 +/-0.15
38.1<D<50.8 +/-0.20 38.1≤D<88.9 +/-0.25 48.3<D≤114.3 +0.80/-0.80
50.8≤D<63.5 +/-0.25
63.5≤D<76.2 +/-0.30 88.9≤D<139.7 +/-0.38 114.3<D≤219.1 +1.60/-0.80
76.2≤D≤101.6 +/-0.38
101.6<D≤190.5 +0.38/-0.64 139.7≤D<203.2 +/-0.76 219.1<D≤457.0 +2.40/-0.80
190.5<D≤228.6 +0.38/-1.14
W.T. Tolerance
(mm)
O.D.
W.T.
Tolerance
O.D.
W.T.
Tolerance
O.D.
W.T.
Tolerance
D≤38.1
WT +20%/-0
D<12.7
WT +/-15%
10.3≤D≤73.0
WT +20.0%/-12.5%
D>38.1
WT +22%/-0
12.7≤D<38.1
WT +/-10%
88.9≤D≤457.0
t/D ≤5%
WT +22.5%/-12.5%
D≥38.1
WT: +/-10%
88.9≤D≤457.0
t/D >5%
WT +15.0%/-12.5%

Related References:
1. Stainless Steel Description
2. Stainless Steel General Information
3. Chromium In Stainless Steel
Stainless Steel " L" "H" Grade
Difference Between 304H and 347H
Difference Between 304 304L and 321
Difference Between ASTM A213 and ASTM A269
Difference Between ASTM A213 and ASTM A312
Difference Between ASTM A269 and ASTM A312
304 304L 304LN 304H Stainless Steel Tubing and Pipe
Difference Between Duplex Steel S31803 / S32205 and 316L

Stainless Steel Tubing, Nickel Alloy Tubing, Brass Alloy Tubing, Copper Nickel Pipe Material Grades


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Main Products:

BA Tube | AP Tube
Condenser Tubes Tubing
Stainless Steel Reheater Tube Superheater Tubes
Stainless Steel U bend Tube
Nickel Alloy U bend Tubes
Copper Alloy U Bend Tubes
Heat Exchanger Tube
Super Duplex Pipe
Nickel Alloy Tube
Brass Alloy Tubing
Copper Nickel Alloys Tubes
Stainless Steel Hollow Tube
Stainless Steel Oval Tubing
Stainless Steel Square Tubing
Stainless Steel Rectangular Tubing
Stainless Steel Capillary Tube
Duplex Stainless Steel Pipe
Seamless Stainless Steel Tubing
Corrugated Stainless Steel Tubing
Stainless Steel Twisted Tube
Polishing Stainless Steel Tubing
Stainless Steel Aircraft Tube
Stainless Steel Hydraulic Tubing
Stainless Steel Instrumentation Tubing
Stainless Steel Angle Iron Bar
Stainless Steel Mechanical Tube
Bright Annealing Stainless Tube
Heat resistant Stainless Steel
Stainless Steel Welded Pipe
Extruded Serrated Finned Tubes Integral Finned Tubes / Extruded Aluminum Finned Tubes
Brass Alloys Copper Nickel Alloy Integral Low Finned Tubes
HFW High Frequency Welded Helical Spiral Serrated Finned Tubes
Corrosion Resistant Stainless Steel
Corrosion Resistance Stainless Steel

Stainless Steel Tubing Pipe

304 Stainless Steel Pipe
304L Stainless Steel Pipe
304H Stainless Steel Pipe
304/304L Stainless Steel Tubing
309S Stainless Steel Pipe
310S Stainless Steel Pipe
316L Stainless Steel Tubing
316Ti Stainless Steel Tube
317L Stainless Steel Pipe
321 321H Stainless Steel
347 347H Stainless Steel
904L N08094 Seamless Tubes
17-4 PH 630 UNS S17400 Stainless Steel
253MA S30815 Stainless Steel Tube
S31254 254 SMO Pipe
S31803 Stainless Steel
2205 Duplex Pipe Tubing
S32101 Stainless Steel
S32304 Stainless Steel
2507 Super Duplex Pipe
S32750 Super Duplex Pipe
S32760 Super Duplex Steel
1.4462 Stainless Steel Pipe
ASTM A213 | ASTM A269
ASTM A312 | ASTM A511
ASTM A789 | ASTM A790
ASTM B161 / ASME SB 161 | ASTM B111
EN 10216-5
ASTM A789 ASME SA 789 S31803 S32205 S32101 S32750 S32760 S32304 S31500 S31260 Seamless Tubes
EN 10216-5 1.4462 1.4362 1.4162 1.4410 1.4501 Seamless Tubes
Nickel Alloy Tubing:

UNS N08020 Alloy 20 Tubing
UNS N02200 Alloy 200 Tube
UNS N02201 Alloy 201 Pipe
UNS N04400 Monel 400 Tubing
N06600 Inconel 600 Tube
N06601 Inconel 601 Tubing
N06625 Inconel 625 Tubes
N08800 Incoloy 800 Tube
N08810 Incoloy 800H Tube
N08811 Incoloy 800HT Tubing
UNS N08825 Incoloy 825 Pipe
ASTM B622 N10276 C276 Tubing
ASTM B622 N06022 Hastelloy C-22 Alloy Tubes
C28000 Brass Seamless Tubes C44300 Brass Seamless Tubes
C68700 Brass Seamless Tubes
C70600 Copper Nickel Tubes
C71500 Copper Nickel Tubes
DIN 2391 Seamless Precision Steel Tubes
EN 10305-1 E215 E235 E355 Seamless Precision Steel Tube Tubing Tubes
DIN 2393 St28 St34.2 St37.2 St44.2 St52.3 Welded Precision Steel Tubes
EN 10305-2 E195 E235 E355 Welded Cold Drawn Precision Steel Tube