ASTM A511 Stainless Steel Mechanical Tube
Aug. 13, 2024
ASTM A511 Stainless Steel Mechanical Tube
ASTM A511 Stainless Steel Tubing, ASTM A511 Austenitic Stainless Steel Tubing
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ASTM A511 specification covers seamless stainless steel tubing for use in mechanical applications where corrosion-resistant or high-temperature strength is needed. Seamless mechanical tubing is a tubular product made without a welded seam. ASTM A511 stainless steel seamless tube is usually manufactured by hot working steel and then cold finishing the hot-worked tubing to produce the desired shape, dimensions and properties All austenitic tubes shall be furnished in the annealed condition. We are well known as a ASTM A511 Stainless Steel Mechanical Tube supplier .Seamless cold-finished mechanical tubing and seamless hot-finished mechanical tubing in sizes up to 12¾ in. [325 mm] in outside nominal diameter (for round tubing) with wall thicknesses as required.ASTM A511 tubing shall be furnished in one of the following shapes, as specified by the purchaser: round, square, rectangular, or special. Round seamless stainless mechanical tubing is generally supplied in the cold-worked and annealed condition.Square, rectangular, or other shapes of tubing are generally supplied annealed prior to final cold shaping.
ASTM A511 Specification
Specifications ASTM A511/ ASME SA511 Grades 302,303se,304,304l,305,309s,310s,316l,317,321,347,403,405,410,416se,429,430,440a,414,446 Range 6NB to NB IN Size OD from ¼&#;&#; to 12 3/4&#;&#; Wall Thickness 0.02&#;&#; to 1&#;&#; (0.5 mm to 25.4 mm) Schedule SCH. 5, 10, 20, 30, 40, 60, 80, 100, 120, 140, 160, XXS. Types Round, Square, Rectangle, Coil, "U" Shape, Hydraulic & Honed Tubes Application Mechanical applications where corrosion-resistant or high-temperature strength is needed.ASTM A511 Tolerances
Largest Specified
Outside Dimension,
Inches
Wall Thickness,
Inches
OD
± Inches
To 1-1/4
all
0.015
Over 1-1/4 to 2
all
0.020
Over 2-1/2 to 5
all
0.030
Over 5-1/2
all
0.060
Chemical Composition Of ASTM A511
Grade Composition, % Carbon Manga-nese, max Phos-
pho-
rus,
max Sul-
fur,
max Silicon, max Nickel Chromium Molybdenum Titanium Columbium plus Tantalum Selenium A511 Seamless Mechanical Tubing MT 302 0.08 to 0.20 2.00 0.040 0.030 1.00 8.0&#;10.0 17.0&#;19.0 &#; &#; &#; &#; A511 Seamless Mechanical Tubing MT 303 0.15 max 2.00 0.20 0.15 min 1.00 8.0&#;10.0 17.0&#;19.0 &#; &#; &#; &#; A511 Seamless Mechanical Tubing MT 303Se 0.15 max 2.00 0.040 0.040 1.00 8.0&#;11.0 17.0&#;19.0 &#; &#; &#; 0.12&#;0.2 A511 Seamless Mechanical Tubing MT 304 0.08 max 2.00 0.040 0.030 1.00 8.0&#;11.0 18.0&#;20.0 &#; &#; &#; &#; A511 Seamless Mechanical Tubing MT 304L 0.035 maxA 2.00 0.040 0.030 1.00 8.0&#;13.0 18.0&#;20.0 &#; &#; &#; &#; A511 Seamless Mechanical Tubing MT 305 0.12 2.00 0.040 0.030 1.00 10.0&#;13.0 17.0&#;19.0 &#; &#; &#; &#; A511 Seamless Mechanical Tubing MT 309S 0.08 max 2.00 0.040 0.030 1.00 12.0&#;15.0 22.0&#;24.0 &#; &#; &#; &#; A511 Seamless Mechanical Tubing MT 310S 0.08 max 2.00 0.040 0.030 1.00 19.0&#;22.0 24.0&#;26.0 &#; &#; &#; &#; A511 Seamless Mechanical Tubing MT 316 0.08 max 2.00 0.040 0.030 1.00 11.0&#;14.0 16.0&#;18.0 2.0&#;3.0 &#; &#; &#; A511 Seamless Mechanical Tubing MT 316L 0.035 maxA 2.00 0.040 0.030 1.00 10.0&#;15.0 16.0&#;18.0 2.0&#;3.0 &#; &#; &#; A511 Seamless Mechanical Tubing MT 317 0.08 max 2.00 0.040 0.030 1.00 11.0&#;14.0 18.0&#;20.0 3.0&#;4.0 &#; &#; &#; A511 Seamless Mechanical Tubing MT 321 0.08 max 2.00 0.040 0.030 1.00 9.0&#;13.0 17.0&#;20.0 &#; B &#; &#; A511 Seamless Mechanical Tubing MT 347 0.08 max 2.00 0.040 0.030 1.00 9.0&#;13.0 17.0&#;20.0 &#; &#; C &#;
ASTM A511 Mechanical Properties
Tensile
Yield
Elon-
Grade
Strength,
Strength
gationB in 2
min,
min,
in., or [50
ksi [MPa]
ksi [MPa]
mm] min.,
%
All austenitic steelsC
75 [515]
30 [210]
35
MT 403
60 [415]
30 [210]
20
MT 405
60 [415]
30 [210]
20
MT 410
60 [415]
30 [210]
20
MT 414
100 [690]
65 [450]
15
MT 416 Se
60 [415]
35 [240]
20
MT 429/MT 430
60 [415]
35 [240]
20
MT 431
105 [725]
90 [620]
20
MT 440 A
95 [655]
55 [380]
15
MT 443
70 [485]
40 [275]
20
MT 446&#;1
70 [485]
40 [275]
18
MT 446&#;2
65 [450]
40 [275]
20
29-4
70 [485]
55 [380]
20
29-4-2
70 [485]
55 [380]
20
S
100 [690]
65 [450]
25
S
90 [620]
65 [450]
25
S
Wall # 0.187 in. [5.00 mm]
101 [700]
77 [530]
30
Wall > 0.187 in. [5.00 mm]
94 [650]
65 [450]
30
S
95 [655]
70 [485]
25
S
OD 1 in. [25 mm] and Under
100 [690]
65 [450]
25
OD Over 1 in. [25 mm]
87 [600]
58 [400]
25
S
90 [620]
65 [450]
18
S
110 [760]
80 [550]
15
S
133 [920]
101 [700]
25
S
116 [800]
80 [550]
15
S
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109 [750]
80 [550]
25
S
116 [800]
80 [550]
15
S
Wall below 0.40 in. [10 mm]
116 [800]
94 [650]
25
Wall 0.40 in. [10 mm]
109 [750]
80 [550]
25
and above
S
100 [690]
70 [480]
20
S
116 [800]
80 [550]
15
N
80 [550]
35 [240]
30
N
#3&#;16 in. [4.8 mm] wall
100 [690]
45 [310]
30
>3&#;16 in. [4.8 mm] wall
95 [655]
45 [310]
30
N
cold worked annealed
75 [515]
30 [205]
30
hot-finished annealed
65 [450]
25 [170]
30
N
65 [450]
25 [170]
30
N
65 [450]
25 [170]
30
N
71 [490]
31 [215]
35
N
87 [600]
43 [295]
40
N
94 [650]
43 [295]
35
Heat Treatment of ASTM A511 Austenitic Stainless Steels
Grade
Temperature °F [°C]
Quench
N
&#; [925&#;]A,B
quenched in water or rapidly cooled by other means
N
[]A
quenched in water or rapidly cooled by other means
N
[]A
quenched in water or rapidly cooled by other means
N
[]A
quenched in water or rapidly cooled by other means
N
[]A
quenched in water or rapidly cooled by other means
N
&#; [&#;]A
quenched in water or rapidly cooled by other means
N
&#; [&#;]A
quenched in water or rapidly cooled by other means
S
- [-]
rapid cooling in air or water
S
- [-]
rapid cooling in air or water
S
[] min
quenched in water or rapidly cooled by other means
S
- [-]
rapid cooling in air or water
S
- [925-]
rapid cooling in air or water
S
- [-]
rapid cooling in air or water
S
[] min
rapid cooling in air or water
S
- [-]
rapid cooling in air or water
S
- [-]
rapid cooling in air or water
S
- [-]
rapid cooling in air or water
S
-[-]
rapid cooling in air or water
S
-[-]
rapid cooling in air or water
S
-[990-]
air cool
S
-[-]
rapid cooling in air or water
ASTM A511 Stainless Steel Seamless Pipe
1. Material preparation:
The production of ASTM A511 stainless steel pipe requires the use of high-quality stainless steel materials, such as 304, 304L, 316, 316L, etc. These materials need to undergo quality inspection and screening to ensure that they meet relevant standards and requirements.
2. Processing:
Stainless steel materials need to be processed, including hot rolling, cold rolling, steel pipe welding, steel pipe drilling, etc. These processes can change the physical and chemical properties of materials to meet different customer needs.
3. Cold Drawn:
ASTM A511 stainless steel pipe is mainly produced by a cold drawing process. Cold drawing is to make the size and wall thickness of the steel pipe meet the requirements by putting the material into the steel pipe cold drawing machine and going through multiple drawing, extrusion, and polishing processes. The cold drawing process can improve the surface quality and dimensional accuracy of the steel pipe while maintaining uniformity and consistency of the steel pipe.
4. Inspection and Packing:
After the production of ASTM A511 stainless steel pipe is completed, it needs to undergo strict inspection and testing to ensure that it meets the relevant standards and quality requirements. Inspection includes visual inspection, size and wall thickness measurement, chemical composition analysis, mechanical performance test, etc. Qualified steel pipes will be packaged and marked for transportation and use.
The equipment for producing ASTM A511 stainless steel pipe mainly includes stainless steel furnace, steel pipe welding machine, steel pipe drilling machine, steel pipe cold drawing machine, grinding machine, etc. This equipment can guarantee the quality and efficiency of steel pipe production. The production of ASTM A511 stainless steel pipe requires strict production process and quality control to ensure that the steel pipe meets the relevant standards and requirements while meeting the needs and application scenarios of different customers.
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