321 Stainless Steel Seamless pipe, ASTM A376 ASME SA376 Seamless 321 Pipes and Tubes Supplier and Distributor
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MD Exports LLP Pipe has pride in providing a whole range of high-class, customizable and innovative ASTM A376 TP321 Stainless Steel EFW pipes using state-of-art technology. Our range includes ASTM A376 TP321 Stainless Steel EFW pipes, Stainless Steel Seamless pipes & Tubes, Carbon Steel Seamless Pipes & Tubes and Alloy Steel Seamless Pipes & Tubes. For more than five decades, MD Exports LLP Pipe has been serving the needs of the oil and gas industries, automotive, shipbuilding, power plants. All the supply records for most of the severe environment of ASTM A376 TP321 Stainless Steel EFW pipes & pipe line indicate that MD Exports LLP Pipe is the leader in line pipe technologies.
We have been supplying high quality ASTM A376 TP321 Stainless Steel EFW pipes with most advance technology and with most reliable quality. We place importance not just on managing material sales, but also on 'before' and 'after service'.
Spec. No. |
Title |
Scope |
ASTM A376 ASME SA376 |
Seamless Austenitic Stainless Steel Pipe for High-Temp Central-Station Service. |
Austenitic stainless steel pipe intended for high temperature and general corrosive service. Better surface than A312 pipe. |
This specification covers seamless austenitic steel pipe intended for high-temperature central-station service. The grades covered are five H grades and two nitrogen grades. Pipe may be either hot finished or cold finished, with a suitable finishing treatment. All pipes shall be furnished in the heat-treated condition unless the order specifically states that no final heat treatment shall be applied. Tensile tests, hydrostatic test, nondestructive electric tests, ultrasonic tests, eddy-current tests, tension tests, and flattening tests shall be made to conform to the requirements specified.
Scope
1. This specification covers seamless austenitic steel pipe intended for high-temperature central-station service. Among the grades covered are H grades and nitrogen grades that are specifically intended for high-temperature service.
2. Optional supplementary requirements (S1 through S10) are provided.
3. Grades TP321 and TP321H have lower strength requirements for nominal wall thicknesses greater than 3/8 in. [9.5 mm].
4. The dimensionless designators NPS (nominal pipe size) and DN (Diametre Nominel) have been substituted in this standard for such traditional terms as “nominal diameter,” “size,” and “nominal size.”
ASTM A376 Grade 202 Stainless Steel Pipe
ASTM A376 Grade 301 Stainless Steel Pipe
ASTM A376 Grade 301L Stainless Steel Pipe
ASTM A376 Grade 301LN Stainless Steel Pipe
ASTM A376 Grade 302 Stainless Steel Pipe
ASTM A376 Grade 303 Stainless Steel Pipe
ASTM A376 Grade 304 Stainless Steel Pipe
ASTM A376 Grade 304LN Stainless Steel Pipe
ASTM A376 Grade 304H Stainless Steel Pipe
ASTM A376 Grade 304L Stainless Steel Pipe
ASTM A376 Grade 304N Stainless Steel Pipe
ASTM A376 Grade 305 Stainless Steel Pipe
ASTM A376 Grade 309 Stainless Steel Pipe
ASTM A376 Grade 309S Stainless Steel Pipe
ASTM A376 Grade 310 Stainless Steel Pipe
ASTM A376 Grade 310S Stainless Steel Pipe
ASTM A376 Grade 314 Stainless Steel Pipe
ASTM A376 Grade 316 Stainless Steel Pipe
ASTM A376 Grade 316N Stainless Steel Pipe
ASTM A376 Grade 316H Stainless Steel Pipe
ASTM A376 Grade 316L Stainless Steel Pipe
ASTM A376 Grade 316LN Stainless Steel Pipe
ASTM A376 Grade 316Ti Stainless Steel Pipe
ASTM A376 Grade 316Cb Stainless Steel Pipe
ASTM A376 Grade 317 Stainless Steel Pipe
ASTM A376 Grade 317L Stainless Steel Pipe
ASTM A376 Grade 317LN Stainless Steel Pipe
ASTM A376 Grade 317LMN Stainless Steel Pipe
ASTM A376 Grade 321 Stainless Steel Pipe
ASTM A376 Grade 321H Stainless Steel Pipe
ASTM A376 Grade 330 Stainless Steel Pipe
ASTM A376 Grade 347 Stainless Steel Pipe
ASTM A376 Grade 347H Stainless Steel Pipe
ASTM A376 Grade 310 MoLN Stainless Steel Pipe
ASTM A376 Grade 904L Stainless Steel Pipe
321 stainless steel pipe is an austenitic chromium-nickel stainless steel containing Titanium which is recommended for parts fabricated by welding which cannot subsequently be annealed. Type 321 is a stabilized austenitic stainless steel similar to type 304 but with a titanium addition. This titanium addition reduces or prevents carbide precipitation during welding and in 800 – 1500°F (427 – 816°C) service. It also improves the elevated temperature properties of the alloy. Type 321 provides excellent resistance to oxidation and corrosion and possesses good creep strength.
Carbon |
0.08 max |
Chromium |
17 - 19 |
Iron |
Balance |
Manganese |
2 max |
Nickel |
9 - 12 |
Phosphorus |
0.045 max |
Silicon |
1 max |
Sulphur |
0.03 max |
Titanium |
5 x (C+N)-0.70 |
The key feature of 321 stainless is its resistance to intergranular corrosion. It employs titanium as a stabilizing element against chromium carbide formation. This alloy also exhibits strength characteristics superior to those of 304 stainless.
Jet engine parts, furnace heat treated parts, expansion joints, turbo superchargers, oil refiners, exhaust manifolds and high temperature chemical production equipment.
Slightly tougher than 304 stainless, this material will produce the same tough stringy chips. The use of slow speeds and constant positive feeds will minimize this alloy's tendency to work harden.
321 may be welded by all commonly used fusion and resistance methods. Oxyacetylene welding is not recommended. When necessary, use AWS E/ER347 filler metal.
Working temperatures of 2100-2300 F (1149-1260 C) are recommended for forging, upsetting and other hot work processes. Do not work this alloy at temperatures below 1700 F ( 927 C). Material must be water quenched or fully annealed after working to reattain maximum corrosion resistance.
Although this material requires higher initial forces than 304 stainless, it is quite tough and ductile and can be readily stamped, blanked, spun and drawn.
1800-2000 F (928-1093 C), air cool. This procedure will result in maximum ductility. For maximum corrosion resistance, see the note on stabilizing anneal under corrosion.
This alloy does not harden by heat treating. Elevated properties may only be obtained through cold reduction.
Density (lb / cu. in.) |
0.29 |
Specific Gravity |
7.9 |
Specific Heat (Btu/lb/Deg F - [32-212 Deg F]) |
0.12 |
Electrical Resistivity (microhm-cm (at 68 Deg F)) |
432 |
Melting Point (Deg F) |
2600 |
Modulus of Elasticity Tension |
28 |
ASTM A376 TP321 Stainless Steel EFW pipes Packaging at MD Exports LLP Pipe Factory |
ASTM A376 TP321 Stainless Steel EFW pipes Packaging at MD Exports LLP Pipe Factory |
Packaging Details: |
There are probably hundreds of different methods for packing a pipe, and most of them have merit, but there are two principles that are vital for any method to work prevent rusting and Sea transportation security. Our ASTM A376 TP321 Stainless Steel EFW pipes packing can meet any needs of the customers. ASTM A376 TP 321 Stainless Steel EFW pipes Bundle packing |
Delivery Detail: | 7-15 days |
Price of Stainless Steel 321 Seamless Pipe ASTM A376 TP 321: $ 5600 ~ $ 6800 USD/Ton
Price of Stainless Steel 321 Seamless Pipe ASTM A312 TP 321: $ 5400 ~ $ 6900 USD/Ton
Price of Stainless Steel 321H Seamless Pipe ASTM A312 TP 321H: $ 5500 ~ $ 7000 USD/Ton
Price of Stainless Steel 321 ERW/Welded Pipe ASTM A312 TP 321: $ 4900 ~ $ 6400 USD/Ton
Price of Stainless Steel 321H ERW/Welded Pipe ASTM A312 TP 321H: $ 5000 ~ $ 6500 USD/Ton
Price of Stainless Steel 321 EFW Pipe ASTM A358 TP 321: $ 4500 ~ $ 6000 USD/Ton
Price of Stainless Steel 321H EFW Pipe ASTM A358 TP 321H: $ 4700 ~ $ 6200 USD/Ton
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