A312 TP304L High Heat Stainless Steel Pipe
A312 TP304L stainless steel pipes can be ERW, seamless, EFW or other types based on production methods for high temperature applications.
A312 304L seamless stainless steel pipes are composed of carbon, manganese, phosphorus, sulfur, silicon and 18% chromium and 8% nickel. The L indicates a variant of 304 material with a lower carbon content. Because of the lower carbon content, A312 304L low carbon stainless steel pipes do not require filler materials or preheating when welding.
A312 304L sanitary pipes can be used for mild chemicals with low acidity and low oxidation and reduction capabilities. Therefore, they are mainly used in the food and beverage industry, low temperature applications, sanitary and pressure control applications.
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A312 TP304L Polished Tube Product specification
A312 TP304L Stainless Steel Pipe Mechanical Properties
| SUS | Tensile Strength minimum (MPa) | Yield Strength 0.2% Proof minimum (MPa) | Elongation minimum (% in 50mm) | Hardness | |
| Rockwell B (HR B) maximum | Brinell (HB) maximum | ||||
| 304L | 485 | 170 | 40 | 92 | 201 |
ASTM A312 TP304L Hollow Tube Chemical Composition
| SS | Si | C | Mn | Cr | P | S | Mo | Ni | N | |
| TP 304L | min. | - | - | - | 18.0 % | - | - | - | 8.0 % | - |
| max. | 1.00 % | 0.03 % | 2.0 % | 20.0 % | 0.045 % | 0.03 % | 12.0 % | - | ||
A312 TP304L austenitic stainless steel pipe

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Gnee has 14 steel production lines, 10 processing equipment for processing, bending, painting, heat treatment, cutting, drilling, beveling, tempering, surface treatment, complete testing equipment and strong technical force. The annual production capacity is more than 60,000 tons.
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FAQ
1.Q.What's your advantage?
A.Honest business with competitive price and professional service on export process.
2.Q.Can your products be customized?
A.Yes, we can produce and process according to your requirements.
3.Q. Do you have a quality control system?
A.Yes, we have our own quality control laboratory.
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