ASME SA213 TP316L Seamless Tube C≤0.035% No PWHT After Welding Intergranular Corrosion Resistant For Heat Exchanger
Price:
Negotiable
MOQ:
1PC
Delivery Time:
5-80 Days
Brand:
YUHONG
Product Description
ASME SA213 TP316L Seamless Tube C≤0.035% No PWHT After Welding Intergranular Corrosion Resistant For Heat Exchanger
The core technological advantage of ASME SA213 TP316L seamless steel pipe lies in its ultra-low carbon content. During welding, the heat-affected zone inevitably experiences a sensitization temperature range of 450℃ to 850℃.
TP316L stainless steel, by reducing the carbon content to below 0.035%, results in extremely low free carbon content at the grain boundaries for Cr₂₃C₆ formation—even across the sensitization temperature range, grain boundary carbides cannot form a continuous network, thus preventing chromium-depleted zones. Therefore, TP316L stainless steel pipe requires no post-weld heat treatment and can be used directly after welding.
| Supporting Standard System | ||
| Standard | Product Form | Application |
| ASME SA213 / A213 | Seamless Tube | Boiler, Superheater, Heat Exchanger |
| ASME SA249 / A249 | Welded Tube | Boiler, Superheater, Heat Exchanger, Condenser |
| ASTM A312 | Seamless / Welded Pipe | Process Piping, Fluid Transportation |
| ASME SA269 / A269 | Seamless / Welded Tube | General Service |
| ASME SA688 / A688 | Welded Tube | Feedwater Heater |
| ASME SA213 TP316L Chemical Composition Requirements | ||
| Element | Content Range (%) | Function Description |
| C (Carbon) | ≤ 0.035 | Low carbon design – prevents intergranular corrosion |
| Mn (Manganese) | ≤ 2.00 | Deoxidation, improves hardenability |
| P (Phosphorus) | ≤ 0.045 | Cold brittleness control |
| S (Sulfur) | ≤ 0.030 | Hot brittleness control |
| Si (Silicon) | ≤ 1.00 | Oxidation resistance improvement |
| Cr (Chromium) | 16.0 – 18.0 | Oxidation resistance & high-temperature strength |
| Ni (Nickel) | 10.0 – 14.0 | Austenite structure stabilization |
| Mo (Molybdenum) | 2.0 – 3.0 | Pitting resistance & creep strength improvement |
| N (Nitrogen) | ≤ 0.10 | Solid solution strengthening (reference) |
| TP316L vs TP316 Chemical Composition Comparison | |||
| Element | TP316L | TP316 | Difference |
| C | ≤0.035% | ≤0.08% | TP316L carbon content reduced by >56% |
| Cr | 16.0-18.0% | 16.0-18.0% | Same |
| Ni | 10.0-14.0% | 10.0-14.0% | Same |
| Mo | 2.0-3.0% | 2.0-3.0% | Same |
TP316 is suitable for machined parts that do not require welding, or for applications where post-weld solution heat treatment is possible. It is particularly advantageous for applications requiring high strength.
TP316L is suitable for scenarios requiring extensive welding, such as tube-to-tube sheet welding of heat exchanger tube bundles, on-site process piping, and large structural components where post-weld heat treatment is not feasible. TP316L eliminates the need for post-weld heat treatment, significantly simplifying the manufacturing process, reducing energy consumption, and avoiding the risk of deformation during heat treatment.
If welding is required, choose TP316L; if welding is not required or post-weld solution treatment is possible, choose TP316. There is no absolute superiority of one over the other; the difference lies in the suitability of the application scenario.
| ASME SA213 TP316L Minimum Mechanical Properties | ||
| Parameter | Value | Standard Reference |
| Tensile Strength (Rm) | ≥ 485 MPa | ASME SA213 |
| Yield Strength (Rp0.2) | ≥ 170 MPa | ASME SA213 |
| Elongation (50mm gage length) | ≥ 35% | ASME SA213 |
| Hardness (HRB) | ≤ 90 | ASME SA213 |
| Hardness (HBW) | ≤ 192 | ASME SA213 |
| Hardness (HV) | ≤ 200 | ASME SA213 |
| Mechanical Properties (Typical Annealed Values) | |
| Parameter | Typical Value |
| Yield Strength | ≥ 205 MPa |
| Tensile Strength | ≥ 515 MPa |
| Elongation | ≥ 35% |
| Hardness | ≤ 90 HRB |
Typical applications of TP316L
-
Heat exchanger tube bundles (tube-to-tube sheet welding) – extensive welding and difficult to perform integral PWHT
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Boilers and superheater tubes (ASME SA213 coverage)
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Petrochemical process pipelines (field welding, in-furnace solution treatment not possible)Marine engineering and ship piping
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Nuclear power auxiliary systems;
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Pharmaceutical and food processing equipment (high purity requirements)
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Company
Yuhong Group Co.,Ltd
Location
20TH FLOOR,NO.1 NEW WORLD BUILDING ,NO.1018 MINAN ROAD,YINZHOU DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE, CHINA
Contact Person
Jikin Cai