Density: 7.98 g/cm³
Outer diameter: 6.35 to 1219mm,1/4"-48"
Wall Thickness: 0.1 to 60mm,sch5s-sch160
Length: 1-12m
Surface: black,pickling,hairline,180 and 240 grits,6K,8K.
Packing: Woven bag,wooden box or as required
Standard: ASTM A213 (ASME SA213), ASTM A249 (ASME SA249),ASTM A269 (ASME SA269),ASTM A312 (ASME SA312),ASTM A511 (ASME SA511),ASTM A554 (ASME SA554),JIS, BS, EN, DIN etc
321 / 321H pipes, tubes and 321H pipe fittings are mainly used in manufacturing heat exchangers, pressure vessels, pharmaceutical and chemical processing equipments.
Manufacturing process：
Round tube billet → heating → perforation → head → annealing → pickling → oiling (copper plating) → multi-pass cold drawing (cold rolling) → blank tube → heat treatment → straightening → hydraulic test (inspection) → mark → in Library.
| HS Code | 7304419000 |
| Standard | ASTM, ASME, DIN, EN, ISO,JIS, GOST, etc. |
| Marking | Grade+Type+Standard+Size+Heat NO or as required |
| Price Term | EX-Work, FOB, CFR, CIF,CNF |
| OEM | Accepted |
| Payment term | T/T,L/C, Western union |
| Certificate | ISO 9001, PED |
| Third party inspection | Accepted |
Chemical composition:
| Grade | UNS | Chemical Component % | ||||||||
| C | Mn | P | S | Si | Ni | Cr | N | Ti | ||
| TP321 | S32100 | 0.08 | 2.00 | 0.045 | 0.03 | 1.00 | 9.0-12.0 | 17.0-19.0 | 0.1 | Ti5(C+N)~0.7 |
| TP321H | S32109 | 0.04~0.10 | 2.00 | 0.045 | 0.03 | 1.00 | 9.0-12.0 | 17.0-19.0 | - | Ti4(C+N)~0.6 |
Cargo packaging:
Test before shipping:
1. Measurement test
2. Chemical composition test
3. Ultrasonic test
4. Eddy current testing
Available 321 pipe types:
321 stainless steel seamless pipe
321 stainless steel welded pipe
321 stainless steel capillary tube
321 stainless steel coiled tubing
321 stainless steel U-tube