Zhejiang Seamless Pipe Co., Ltd.
| Payment Terms | L/C,D/A,D/P,T/T,Western Union,MoneyGram |
| Supply Ability | 1000 ton/month |
| Delivery Time | 2 weeks/container |
| Packaging Details | Bundles in woven bag/plywood case With plastic end caps |
| Material | TP321 |
| Certificates | ISO,PED |
| Package | Plywood Case |
| Surface Finish | Polished (Internal & External) |
| Length | Fixed Length (6m) or Cut-to-Length |
| Outer Diameter (OD) | 1/4" – 2" |
| Brand Name | SMLSCO |
| Certification | ISO PED |
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Product Specification
| Payment Terms | L/C,D/A,D/P,T/T,Western Union,MoneyGram | Supply Ability | 1000 ton/month |
| Delivery Time | 2 weeks/container | Packaging Details | Bundles in woven bag/plywood case With plastic end caps |
| Material | TP321 | Certificates | ISO,PED |
| Package | Plywood Case | Surface Finish | Polished (Internal & External) |
| Length | Fixed Length (6m) or Cut-to-Length | Outer Diameter (OD) | 1/4" – 2" |
| Brand Name | SMLSCO | Certification | ISO PED |
| High Light | Polished ASTM A269 Seamless Tube ，Bright Annealed Steel Seamless Tube ，Polished Stainless Steel Seamless Tube | ||
Chemical Composition of 321 Stainless Steel
| Material | Chemical Composition % Max ASTM A269 | |||||||||
| C | Mn | P | S | Si | Cr | Ni | Mo | Nb | Ti | |
| TP304 | 0.08 | 2 | 0.045 | 0.03 | 1 | 18.0-20.0 | 8.0-11.0 | - | - | - |
| TP304L | 0.035 | 2 | 0.045 | 0.03 | 1 | 18.0-20.0 | 8.0-12.0 | - | - | - |
| TP316 | 0.08 | 2 | 0.045 | 0.03 | 1 | 16.0-18.0 | 10.0-14.0 | 2.00-3.00 | - | - |
| TP316L | 0.035 | 2 | 0.045 | 0.03 | 1 | 16.0-18.0 | 10.0-15.0 | 2.00-3.00 | - | - |
| TP321 | 0.08 | 2 | 0.045 | 0.03 | 1 | 17.0-19.0 | 9.0-12.0 | - | - | 5C -0.70 |
| TP347 | 0.08 | 2 | 0.045 | 0.03 | 1 | 17.0-19.0 | 9.0-12.0 | - | 10C -1.10 | - |
Physical Property of 321 Stainless Steel
| Steel grade | Physical Property | |||
| Y.S | T.S | EL. | HRB | |
| 304 | ≥205 | ≥515-1035 | ≥40 | ≤92 |
| 304L | ≥205 | ≥520 | ≥40 | ≤90 |
| 316 | ≥620 | ≥310 | ≥30 | ≤95 |
| 316L | ≥480 | ≥177 | ≥40 | ≤90 |
| 321 | ≥205 | ≥515 | ≥40 | ≤95 |
| 347 | ≥205 | ≥515 | ≥40 | ≤92 |
Material Properties of TP321
The core advantage of 321 stainless steel lies in its excellent resistance to intergranular corrosion. By adding stabilizing element titanium (Ti), it can effectively suppress the formation of chromium carbide at high temperatures (425-850 ° C) or in the welding heat affected zone, thereby avoiding the deterioration of material properties. This characteristic makes it perform much better than 304 or 316 stainless steel in working conditions that require repeated high-temperature cycles or cannot undergo post weld solution treatment. It is a reliable material designed specifically for high-temperature environments and has good creep and stress fracture properties.
Core Advantages of SMLSCO
SMLSCO is not only an inventory expert for conventional stainless steel grades, but also relies on a strong supply chain network and 19 years of industry experience to provide you with reliable supply of steel such as TP321. We understand your strict requirements for the performance and quality of high-temperature alloys. Through our mature quality control system, we ensure that every TP321 tube produced meets international standards. Choosing us means you have chosen stable quality, competitive prices, and reliable delivery guarantees.
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2006
Employee Number:
100~150
Ecer Certification：
Verified Supplier
Zhejiang seamless pipe co.,ltd. (SMLSCO) is a specialized stainless steel piping systems provider with 18 years of industry experience. We began by supplying cost-effective stainless steel seamless pipes but for now, Smlsco is more than pipes.With 18 years of growth, we have established production c... Zhejiang seamless pipe co.,ltd. (SMLSCO) is a specialized stainless steel piping systems provider with 18 years of industry experience. We began by supplying cost-effective stainless steel seamless pipes but for now, Smlsco is more than pipes.With 18 years of growth, we have established production c...
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