Cold rolled Small Diameter stainless steel round tube ASTM A269
S30403 / S31603
Material Grade :
American Standard | TP304 , TP304L , TP310S , TP316 , TP316L , TP316Ti , TP321 , TP347
, 904L , S31803 Etc |
European Standard | 1.4301 , 1.4306 , 1.4845 , 1.4401 , 1.4404 , 1.4571 , 1.4541 ,
1.4550 , 1.4539 , 1.4462 Etc |
German Standard | X5CrNi18-10 , X2CrNi19-11 , X12CrNi25-21 , X5CrNi17-12-2 ,
X5CrNi17-12-3 , X2CrNiMo18-14-3 , X6CrNiTi18-10 , X6CrNiTb18-10 Etc |
Applications :
1 . General service industries ( petroleum , food , chemical ,
paper , fertilizer , fabric , aviation and nuclear )
2 . Fluid , gas and oil transport
3 . Pressure and heat transmission
4 . Construction and ornament
5 . Boiler and heat exchangers
6 . Decorative usage ( road lamp facilities , bridge handrail ,
expressway railing , bus stop , airport and gymnasium ) Etc
Advantages | a) Superior surface finish |
b) Better mechanical property |
c) More precise dimension |
d) Perfect inspection method and inspection equipment |
Price Item | FOB , CFR , CIF or as negotiation |
Payment | T/T, LC or as negotiation |
Delivery Time | 30 working days after received your deposit ( Normally according to
the order quantity ) |
Package | Iron case ; woven bag or as per customer’s requirement |
Quality Requirement | Mill Test Certificate will be supplied with shipment , Third Part
Inspection is acceptable |
Test | NTD ( Ultrasonic test , Eddy Current test ) |
Mechanical Test ( Tension Test , Flaring Test , Flattening Test ,
Hardness Test , Hydraulic test ) |
Metal Test ( Metallographic Analysis , Impact Test - High / low
temperature ) |
Chemical Analysis ( Photoelectric Emission Spectroscopic ) |

ASTM A269 Chemical Composition :
Elements | 304L(wt%) S30403 | 304(wt%) S30400 | 316L (wt%) S31603 | 316 (wt%) S31600 |
(C) Carbon, max | 0.035 | 0.08 | 0.035 | 0.08 |
(Mn) Manganese, max | 2 | 2 | 2 | 2 |
(P) Phosphorus, max | 0.045 | 0.045 | 0.045 | 0.045 |
(S) Sulfur, max | 0.03 | 0.03 | 0.03 | 0.03 |
(Si) Silicon, max | 1 | 1 | 1 | 1 |
(Ni) Nickel | 8.0 - 12.0 | 8.0 - 11.0 | 10.0 - 14.0 | 10.0 - 14.0 |
(Cr) Chromium | 18.0 - 20.0 | 18.0 - 20.0 | 16.0 - 18.0 | 16.0 - 18.0 |
(Mo) Molybdenum | N/A | N/A | 2.0 - 3.0 | 2.0 - 3.0 |
(Fe) Iron | Bal. | Bal. | Bal. | Bal. |
(Cu) Copper | N/A | N/A | N/A | N/A |
(N) Nitrogen | N/A | N/A | N/A | N/A |
MTSCO instrument products are made with high quality raw material.
Advanced manufacture equipments and the exquisite craft,
technology, characteristic of high precise size, good quality
surface, stable performace, especially for the reliable durable
performance under high temperature. It is widely applied in heat
exchanger and condenser tubes, gas spring and lifter tubes, shock
absorber tubes, automobile motocycle tubes, hydraulic tube.High
pressure and super critical pressure steam boiler and so on.