ASTM A511 Stainless Steel Tube Manufacturer
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ASTM A 511 Stainless Steel Mechanical Tube
ASTM A511 pipe is a specification for mechanical applications with high corrosion resistance. ASTM A511 stainless steel pipe is a seamless pipe with higher dimensional accuracy. Different grades of materials are used in this series of tubes. There are also different types of pipes, such as ASTM A511 seamless stainless steel mechanical pipes and hollow rods for different applications. The material grade ranges from MT 302, 303, 304, and 305 to MT347. All these grades contain manganese, phosphorus, sulfur, silicon, nickel, and chromium.
ASTM A511 Stainless Steel Mechanical Tube Specification
Standard: ASTM A511
Material/Steel Grade: MT304, MT304L, MT304H, MT310, MT310S, MT316, MT316L, MT317, MT317L, MT321, MT321H, MT347
Application: Seamless Stainless Steel Mechanical Tubing
Size: OD: 6.0~203.0mm WT: 0.5~25.0mm
Finish: Mill
Shape: rectangular, round, square, oval, U-bend tubing
ASTM A511 Stainless Steel Tube Tolerances Chart
|
Size
Inches |
ODB
Over/ Under, In. |
Wall CD Over/
Under % |
Cut
Length Inches |
OvalityB Double Outside Diameter Tolerance
When Wall Is: |
|
Under 1/2
|
0.005
|
15
|
+1/8 –0
|
less than 0.015
|
|
1/2 to 1-1/2 excl.
|
0.005
|
10
|
+1/8 –0
|
less than 0.065
|
|
1-1/2 to 3-1/2 excl.
|
0.010
|
10
|
+3/16 –0
|
less than 0.095
|
|
3-1/2 to 5-1/2 excl.
|
0.015
|
10
|
+3/16 –0
|
less than 0.150
|
|
5-1/2 to 8 excl.
|
0.030
|
10
|
+3/16 –0
|
less than 0.240
|
|
8 to 8-5/8 excl.
|
0.045
|
10
|
+3/16 –0
|
less than 0.300
|
ASTM A511 Stainless Steel Tubing Chemical Composition:
|
Grade |
Carbon |
Mn |
P |
S |
Si, max |
Ni |
Cr |
Mo |
Ti |
Columbium plus Tantalum |
Se |
|
max |
max |
max |
|||||||||
|
MT 302 |
0.08 to 0.20 |
2 |
0.04 |
0.03 |
1 |
8.0–10.0 |
17.0–19.0 |
… |
… |
… |
… |
|
MT 303 |
0.15 max |
2 |
0.2 |
0.15 min |
1 |
8.0–10.0 |
17.0–19.0 |
… |
… |
… |
… |
|
MT 303Se |
0.15 max |
2 |
0.04 |
0.04 |
1 |
8.0–11.0 |
17.0–19.0 |
… |
… |
… |
0.12–0.2 |
|
MT 304 |
0.08 max |
2 |
0.04 |
0.03 |
1 |
8.0–11.0 |
18.0–20.0 |
… |
… |
… |
… |
|
MT 304L |
0.035 maxA |
2 |
0.04 |
0.03 |
1 |
8.0–13.0 |
18.0–20.0 |
… |
… |
… |
… |
|
MT 305 |
0.12 |
2 |
0.04 |
0.03 |
1 |
10.0–13.0 |
17.0–19.0 |
… |
… |
… |
… |
|
MT 309S |
0.08 max |
2 |
0.04 |
0.03 |
1 |
12.0–15.0 |
22.0–24.0 |
… |
… |
… |
… |
|
MT 310S |
0.08 max |
2 |
0.04 |
0.03 |
1 |
19.0–22.0 |
24.0–26.0 |
… |
… |
… |
… |
|
MT 316 |
0.08 max |
2 |
0.04 |
0.03 |
1 |
11.0–14.0 |
16.0–18.0 |
2.0–3.0 |
… |
… |
… |
|
MT 316L |
0.035 maxA |
2 |
0.04 |
0.03 |
1 |
10.0–15.0 |
16.0–18.0 |
2.0–3.0 |
… |
… |
… |
|
MT 317 |
0.08 max |
2 |
0.04 |
0.03 |
1 |
11.0–14.0 |
18.0–20.0 |
3.0–4.0 |
… |
… |
… |
|
MT 321 |
0.08 max |
2 |
0.04 |
0.03 |
1 |
9.0–13.0 |
17.0–20.0 |
… |
B |
… |
… |
|
MT 347 |
0.08 max |
2 |
0.04 |
0.03 |
1 |
9.0–13.0 |
17.0–20.0 |
… |
… |
C |
… |
Advantages of ASTM A511 Stainless Steel Tube
ASTM A511 stainless steel pipe has high strength and hardness and can withstand large pressure and load. The following is the relevant performance test data of 304 stainless steel pipe:
- Tensile strength: ≥515 MPa
- Yield strength: ≥205 MPa
- Elongation: ≥35%
- Hardness: ≤90 HRB
ASTM A511 stainless steel pipe has excellent corrosion resistance and can be used for a long time in harsh environments without rust. The following is the relevant performance test data of 316L stainless steel pipe:
- Salt spray test: more than 1000 hours
- Corrosion test: no rust
ASTM A511 stainless steel pipe has high wear resistance and can withstand high friction and wear. The following is the relevant performance test data of 410 stainless steel pipes:
- Friction coefficient: ≤0.6
- Wear rate: ≤0.05 g/cm²
ASTM A511 stainless steel pipe is easy to machine and form and is suitable for various stainless steel processing processes. The following is the relevant performance test data of 304L stainless steel pipe:
- Formability: good
- Processability: good
In addition, ASTM A511 stainless steel tubes have passed a number of international standard certifications, such as ISO 9001 quality management system certification, ISO 14001 environmental management system certification, PED pressure equipment directive certification, RoHS certification, etc., and can provide relevant certification certificates to enhance buyers’ awareness of Product confidence.
To sum up, ASTM A511 stainless steel pipe has the advantages of high strength, corrosion resistance, wear resistance, and easy processing. It has passed a number of international standard certifications and is a high-quality stainless steel pipe product.
Production Technology and Production Process:
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.
In addition, ASTM A511 stainless steel tubes have passed a number of international standard certifications, such as ISO 9001 quality management system certification, ISO 14001 environmental management system certification, PED pressure equipment directive certification, RoHS certification, etc., and can provide relevant certification certificates to enhance buyers’ awareness of Product confidence.
To sum up, ASTM A511 stainless steel pipe has the advantages of high strength, corrosion resistance, wear resistance, and easy processing. It has passed a number of international standard certifications and is a high-quality stainless steel pipe product.
ASTM A511 VS ASTM A269
ASTM A511 and ASTM A269 are two commonly used stainless steel pipe standards, they have the following differences:
Scope of Application:
ASTM A 511 is suitable for the manufacture of stainless steel seamless tubes in the fields of mechanical structure, electric power industry, automobile manufacturing, food, and pharmaceutical industries, with diameters ranging from 6mm to 203mm and wall thicknesses ranging from 0.5mm to 25mm.
ASTM A269 is suitable for the manufacture of seamless and welded stainless steel pipes, which are mainly used to transport corrosive media under high temperatures and high-pressure conditions, such as chemical, petroleum, and pharmaceutical fields.
Material:
ASTM A511 includes a variety of stainless steel materials, such as 304, 304L, 316, 316L, etc.
The main stainless steel materials used in ASTM A269 are 304, 304L, 316, and 316L.
Mechanical Behavior:
ASTM A511 vs ASTM A269 have different requirements in terms of mechanical properties. ASTM A 511 has relatively high requirements on mechanical properties, and needs to meet certain indicators such as tensile strength, yield strength, and elongation; while ASTM A269 has relatively low requirements on mechanical properties.
Production Process:
ASTM A511 vs ASTM A269 use different production processes. ASTM A511 stainless steel tube is mainly produced by cold drawing process while ASTM A269 stainless steel pipe is mainly produced by seamless and welding process.
Therefore, when selecting stainless steel pipes, it is necessary to choose ASTM A511 or ASTM A269 according to specific application scenarios and requirements to ensure product quality and performance.
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