310s 347 321 Stainless Steel Seamless Pipe Standards Astm A213 Tp304 316l
Certification:ISO9001, CE
Minimum Order Quantity:1 pcs
Delivery Time:7~10working days
Payment Terms:L/C, T/T
Place of Origin:Jiangsu, China
Supply Ability:5000 Ton/Tons per Month
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Qingdao Shandong China
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20 meters south of China Postal Savings Bank Liuting Business Office,Liuting Street,Chengyang District,Qingdao Shandong
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Grade 302 SMLS Stainless Steel Seamless Pipe
302 STAINSTEEL STEEL SEAMLESS&WELDED PIPE
Stainless Steel Grade 302 is a chromium-nickel stainless steel which is a tough austenitic alloy and finds use in a wide range of industrial applications.
STOCKING PROGRAM
- Size Range : 1/4″ ~ 36″ NPS (Larger sizes available upon request)
- Schedules : 10, 10s, 40, 40s, 80, 80s, 120, 160 (Custom wall thicknesses available upon request)
- Stainless Steel Grades : 304, 304L, 316, 316L, 316L, 317L, 321 , 347
- Special Alloys : 2205, 254SMo, Monel, Inconel
- Chrome Moly : P5, P9, P11, P22, P91
- Standards : ASTM / ASME
CHEMICAL COMPOSITION
| Element | C | Mn | Si | P | S | Cr | Ni | Fe |
| 302 | 0.15% | 2.0% | 0.75% | 0.045% | 0.03% | 17.0~19.0% | 8.0~10.0% | Remainder |
| 303 | 0.10% | 2.0% | 1.00% | 0.040% | 0.015% | 17.0~19.0% | 8.0~10.0% | Remainder |
| 304 | 0.07% | 2.0% | 0.75% | 0.045% | 0.03% | 17.5~19.5% | 8.0~10.5% | Remainder |
| 304L | 0.03% | 2.0% | 0.75% | 0.045% | 0.03% | 17.5~19.5% | 8.0~12.0% | Remainder |
| 304H | 0.04~0.10% | 2.0% | 0.75% | 0.045% | 0.03% | 18.0~20.0% | 8.0~10.5% | Remainder |
| 309 | 0.20% | 2.0% | 0.75% | 0.045% | 0.03% | 22.0~24.0% | 12.0~15.0% | Remainder |
| 321 | 0.08% | 2.0% | 0.75% | 0.045% | 0.03% | 17.0~19.0% | 9.0~12.0% | Remainder |
| 330 | 0.08% | 2.0% | 0.75~1.50% | 0.03% | 0.03% | 17.0~20.0% | 34.0~37.0% | Remainder |
| 347 | 0.08% | 2.0% | 0.75% | 0.045% | 0.03% | 17.0~19.0% | 9.0~13.0% | Remainder |
MECHANICAL PROPERTIES
| Grade | Tensile Strength (MPa) Min | Yield Strength 0.2% Proof (MPa) Min | Elongation (%in 50mm) Min | Hardness | |
Rockwell B (HR B) Max | Brinell (HB) Max | ||||
| 302 | 620 | 275 | 40 | 92 | 147 |
| 303 | 620 | 310 | 30 | 96 | 230 |
| 304 | 515 | 205 | 40 | 92 | 201 |
| 304L | 485 | 170 | 40 | 92 | 201 |
| 304H | 515 | 205 | 40 | 92 | 201 |
| 309 | 515 | 205 | 40 | 95 | 217 |
| 321 | 515 | 205 | 40 | 95 | 217 |
| 330 | 552 | 207 | 40 | 95 | 217 |
| 347 | 515 | 205 | 40 | 92 | 201 |
ADVANTAGES OF WELDED
- Welded pipes are typically more cost effective than their seamless equivalents.
- Welded pipes are usually more readily available than seamless. The longer lead time required for seamless pipes can not only make timing problematic, but it also allows more time for the price of the materials to fluctuate.
- The wall thickness of welded pipes is generally more consistent than that of seamless pipes.
- The internal surface of welded tubes can be checked before manufacturing, which isn’t possible with seamless.
ADVANTAGES OF WELDED
- The main perceived advantage of seamless pipes is that they don’t have a weld seam.
- Seamless pipes provide peace of mind. Although there should be no issues with the seams of welded pipes supplied by reputable manufacturers, seamless pipes prevent any possibility of a weak seam.
- Seamless pipes have better ovality or roundness, than welded pipes.
310s 347 321 Stainless Steel Seamless Pipe Standards Astm A213 Tp304 316l
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