254smo/1.4547/S31254/X1crnimocun20-18-7 Seamless Stainless Steel Pipe and Tube for Aerospace
Material Summary
254 SMO is an austenitic stainless steel, whose chemical base consists of high amounts of molybdenum, chromium as well as nickel. Under some circumstances, the UNS S31254 SMO Seamless Pipe is considered to be a highly economical, yet commercially viable solution to applications that are prone to corrosion. In fact, the corrosion resistance properties of 250 SMO pipe is compared to nickel alloys.
It demonstrates outstanding resistance to pitting, crevice corrosion stress cracking, and corrosion fatigue uniform corrosion. 254 SMO is substantially stronger than the common austenitic grades, with strength nearly twice that of 300 series stainless steel. It is also characterized by high ductility and impact strength.
Chemical Composition
Grade |
C |
SI |
Mn |
P |
Cr |
Ni |
Mo |
N |
S |
Others |
254SMO |
≤ 0.02 |
≤0.80 |
≤1.00 |
≤ 0.03 |
19.50-20.50 |
17.50-18.50 |
6.00-6.50 |
0.2 |
0.01 |
Cu0.5-1 |
1.Element shall be determined arithmetically by difference.
Mechanical Properties
de |
Tensile Strength |
0.2 % Yield Strength Rpt |
Elongation |
Hardness |
||
T#0.187"(5mm) |
T>0.187"(5mm) |
Brinell |
Rockwell |
|||
254SMO |
≥ 98ksi(675MPa) |
≥ 95ksi(655MPa) |
≥ 45ksi(310MPa) |
≥ 35% |
220HBW |
96HRB |
Natural and treated seawater systems, desalination plants
Pollution control: smelters (ducting, chimneys linings...)
Bleaching equipment for pulp and paper industries (washers)
Chemical industries: chloride containing media; phosphoric acid, sulphury acid Fine chemical production
Oil & Gas Exploration
Petrochemicals and Refineries
Fertilizer Plants
Thermal, Nuclear and Solar Power Plants
Aerospace
Pharmaceutical
Food and Dairy




ZHEJIANG ZHONGZHENG STAINLESS STEE MANUFACTURING CO. LTD. is a professional supplier of stainless steel materials, located in Zhejiang, China with high speed of economic development. We are near shanghai port; the traffic is very convenient.The main stainless steel materials are stainless steel plate, pressure vessel stainless steel plate, high temperature boiler plate, corrosion resistant stainless steel plate, stainless steel seamless pipe, stainless steel industrial pipe, stainless steel welded pipe, stainless steel bar, stainless steel pipe and so on.With the aim of "quality first, timely delivery, good faith cooperation, considerate service and common development", the company has set up a good reputation in the industry for providing high quality stainless steel materials and perfect after-sales service.
Are you a factory or a trading company?
We are a company with two mill and one warehouse,produce Stainless Steel/(Super)Duplex Steel/ Nickel Alloy seamless tube&pipes.
But we also can provide welded stainless steel pipes and pipe fittings, coils, sheets, bar, plates etc.
Do you have any certificate?
We have approvals of ISO9001:2015,ISO14001:2015,ISO45001:2018, BV Ocean& Offshore Ship Classification Societies, GOST, TUV, PED AD2000 etc.
And will get ABS/NORSOK/DNV/CU-TR(EAC) soon.
What is your delivery time?
It mainly depends on your demanded volume and material grade. The time of delivery is usually around0.5- 1 month(1*40HT as usual).
We can send it out in 5 days if it has stock.
What is your payment terms?
Our usual payment term is 30% deposit and the rest against B/L. L/C is also acceptable. And the shipping terms are EXW,FOB, CFR,CIF.Whichever you like.
How can you guarantee the quality of my goods?
All material are 100% PMI tested and measured before shipping. We also accept third part inspection andEN10204.3.1B Mill test certificate for all materials.
How do you make our business long-term and good relationship?
1.We keep good quality and competitive price to ensure our customers benefit.
2. We respect every customer and we sincerely do business with them, sustain our service level before and after every deal.
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