| Manufacture Standard: |
ASTMA213, ASTMA312, ASTM A269, ASTMA511, ASTM A789, ASTM A790,GOST 9941, GOST 9940, DIN17456, DIN17458, EN10216-5, EN17440,JISG3459, JIS3463,GB/T13296, GB/T14976, GB/T14975, GB9948, GB5310, etc |
| Grades: |
304 , 304L, 304H, 304N, 316, 316L 316Ti, 317L, 310S, 321, 321H, 347H, S31803, S32750, 347, 330, 825, 904L,12X18H9, 08X18H10, 03X18H11, 08X18H10T, 20X25H20C2, 08X17H13M2T, 08X18H12E. 1.4301, 1.4306, 1.4401, 1.4404, 1.4435, 1.4541, 1.4571, 1.4563, 1.4462, 1.4845, SUS304, SUS304L, SUS316, SUS316L, SUS321, SUS310S etc |
| Size: |
A).Out diameter: ANSI 1/8"-24"(6mm-630mm). B).Wall thickness: ANSI 5S-160S (0.9mm-30mm) |
| Process methods: | cold dawning, cold rolling |
| Surface &Delivery condition: | Solution annealed and pickled, grey white (polished),with plain ends/bevel edges ends |
| Length: | Max25 meters |
| Packing: | in seaworthy wooden cases or in bundles |
| Min order quantity: | 0.5-1 ton |
| Delivery date: | TP304,TP310s pipes usually have stock,others Min. 10 days |
| Certificates: | ISO9001:2000 quality system and Mill test Certificate supplied |
Quality Assure:
| Quality assure: | 1),Basic guarantee: | Raw material guarantee,we use the Tsingshan Brand raw material,the quality is good,adding we use the spectrum direct-reading test,our professional workers &equipments,we could guarantee the tubes is right of the clients' needs. |
| 2),Process control: |
follow the process chart adding our workers' care
|
|
| 3),Inspection& Test | Direct-reading Spectrum Instrument analytic for chemical composition, Yield Strength, Tensile Strength, Elongation, Hardness Test, Flattening Test, Flaring Test, Eddy Current Test, Ultrasonic Test, Hydrostatic Test, Corrosion Test, etc |
General Require of ASTMA213/M
|
standard
Items |
ASTM A213/A213M | |||
|
Steel grade |
TP301 TP304L
TP316 TP316L TP317 TP310L TP347 TP310S TP347H△ TP310H * TP309H* TP321H△ |
|||
| Rp0.2(Mpa) | ≥170 ; ≥205 | |||
| Rm(Mpa) | ≥485 ; ≥515 | |||
| A(%) | ≥35 | |||
| Flatten experiment(mm) | H=1.09t/(0.09+t/D) | |||
| flaring test | Inside diameter 21-68% | |||
| Grain size | "*"," △ "ASTM E112/ "△ "7#or above7#"*"6#or above6# | |||
|
hydrostatic test (Mpa) |
D | Pmax |
P=220.6t/D |
|
| <25.4 | 7 | |||
| 25.4-<38.1 | 10 | |||
| 38.1-<50.8 | 14 | |||
| 50.8-<76.2 | 17 | |||
| 76.2-<127 | 24 | |||
| ≥127 | 31 | |||
|
Crystal
corrosion test |
ASTM A262 | |||
| nondestructive inspection | ASTM E213 E309 E426 | |||
| Heat treatment (solid solution) | required | |||
|
Out-diameter tolerance(mm) |
OD | TOLERANCE | ||
| <25.4 | ±0.10 | |||
| 25.4-≤38.1 | ±0.15 | |||
| >38.1-<50.8 | ±0.20 | |||
| 50.8-<63.5 | ±0.25 | |||
| 63.5-<76.2 | ±0.30 | |||
| 76.2-≤101.6 | ±0.38 | |||
| >101.6-≤190.5 | ±0.38/-0.64 | |||
| >190.5-≤228.6 | ±0.38/-1.14 | |||
|
Thickness tolerance(mm) |
OD | TOLERANCE | ||
| ≤38.1 | +20%-0 | |||
| >38.1 | +22%-0 | |||
| straightness(mm/m) | REASONABLE | |||
| HARDNESS | HRB<90 | |||
Process of stainless steel pipe tube:
Features of stainless steel tubes:
1)characters such as Safety, health, environmental protection
2)economy applicable, good surface
3)the resistant to corrosion
4)less weight than bars, thickness and out diameter so variously
5)easy cutting, huge deformation
6)tensile strengthen and good be flexible etc.
Applications & Usage of seamless stainless pipe
as Line pipe, boiler pipe, mechanical structure, hydraulic prop pipe, gas pipe, geological pipe, chemical pipe
(high pressure chemical fertilizer pipe, oil cracking pipe) and tube for ships, etc
decoration,building,construction,water pipe,petroleum, chemical industry, chemical fiber, smelt, medical machinery,
paper making,Heat preservation and refrigeration, mechanical equipment, food, electricity, water conservancy,
architecture, aerospace, navigation shipbuilding, environmental protection and boiler heat exchanger
If you are interested in our products, please feel free to contact us for details.