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Help CenterASTM A312 TP 304/304L Seamless Pipe 1-1/2" SCH40 Stainless Steel Tube
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ASTM A312 TP 304/304L Seamless Pipe 1-1/2" SCH40 Stainless Steel Tube
Standard:ASTM A312, ASME SA312
Common Use Grades: TP304, 304L, 316, 316L
Diameters: From 1/8 inch to 30 inch.
Wall thickness: SCH 10S, 40S, 80S
Specification
ASTM A312 pipe is the general use stainless steel pipe applied in different industries. It covers diameters from 1/8” to 30” and thickness from SCH 10S to SCH 80S. Common use material grades are TP304/304L, TP316/316L.
ASTM A312 Standard Scope
Our hot sale stainless steel pipes including seamless and welded pipe.There are several grades in this standard, and each steel grade shall confirm to the required chemical composition of C, Mn, P, S, Si, Cr and Cr, Ni, Mo, etc. All the pipes shall be furnished in the heat-treated condition in accordance with the required heat treating temperature and cooling/testing requirements. And also need to comply to the required tensile strength and yield strength.
Chemical Composition:
| Grade | C Max | Mn Max | P Max | S Max | Si Max | Cr | Ni | Mo |
| 301 | 0.15 | 2.00 | 0.05 | 0.03 | 1.00 | 16.00-18.00 | 6.00-8.00 | |
| 302 | 0.15 | 2.00 | 0.04 | 0.03 | 1.00 | 17.00-19.00 | 8.00-10.00 | |
| 304 | 0.07 | 2.00 | 0.05 | 0.03 | 1.00 | 18.00-20.00 | 8.00-10.50 | |
| 304L | 0.03 | 2.00 | 0.05 | 0.03 | 1.00 | 18.00-20.00 | 9.00-13.00 | |
| 301S | 0.08 | 2.00 | 0.05 | 0.03 | 1.00 | 24.00-26.00 | 19.00-22.00 | |
| 316 | 0.08 | 2.00 | 0.05 | 0.03 | 1.00 | 16.00-18.00 | 10.00-14.00 | 2.00-3.00 |
| 316L | 0.03 | 2.00 | 0.05 | 0.03 | 1.00 | 16.00-18.00 | 12.00-15.00 | 2.00-3.00 |
| 321 | 0.08 | 2.00 | 0.05 | 0.03 | 1.00 | 17.00-19.00 | 19.00-13.00 |
Mechanical Properties:
| Grade | Tensible Strength(MPA) | Yield Strength(MPA) |
| TP304 | 75 (515) | 30 (205) |
| TP304L | 70 (485) | 25 (170) |
| TP316 | 75 (515) | 30 (205) |
| TP316L | 70 (515) | 25 (170) |
The Process Flow:
The Quality Testing:
304 Stainless Steel Pipe Applications:
Type 304/ 304L stainless steel is very common throughout the industry, especially in food processing, because it is not susceptible to acid corrosion in common foods. Therefore, this steel is very suitable for use in sinks, work surface, preparation areas and refrigerators. It is also an ideal material for pharmaceutical industry, such as clean room.
316 Stainless Steel Pipe Applications:
Type 316/316L seamless pipe is used for liquid or gas pressure transfer in water treatment, waste water treatment, petrochemical, chemical, pharmaceutical and other industries. And structural applications include handrails, poles and support pipe for salt water and corrosive environments. Compared with type 304 stainless steel, type 316 stainless steel pipe has lower weldability, therefore it is not used as often as welded pipe unless its superior corrosion resistance exceeds weldability.
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