MaiLong Metal is located in the largest metal material production and processing center in China. Is a steel and alloy as raw materials, set metal processing, installation, research and development design, logistics and distribution in one integrated enterprise.
Over the years, we have been adhering to the principle of "product first, reputation first" to provide high quality metal materials and services for large enterprises and customers around the world.

 

Our main products are as follows:

● Cold rolled steel and Hot rolled steel.

● Deep drawing steel

● Cold rolled and Hot rolled stainless steel

● Low alloy high strength steel

● Copper and Aluminum metal

● Seamless pipe

 

At the same time, we have close cooperation with large enterprises such as CHALCO、JISCO、 BAOWU、TISCOHave close cooperation, products are exported to Mexico, the United States, Saudi Arabia, Pakistan, Italy, Egypt, Indonesia, Brazil, Turkey and other countries. With efficient supervision system and professional experience, we provide considerate services to customers all over the world, hoping to be your partner in China.

Stainless Steel 304 Pipes Supplier, ASTM A312 SS 304 Pipes, ASTM A240 Stainless Steel 304 Tubes, 304 Stainless Steel Pipes & Tubes Manufacturer, 304 Stainless Steel Pipes & Tubes, Stainless Steel 304 ERW Tubes, SS 304L Seamless Tubes Exporter

TP304 & 304L Stainless Steel Pipe & Tube

Stainless Steel 304 Pipes Supplier, ASTM A312SS 304 Pipes, Stainless Steel 304 Tubes, 304 Stainless Steel Pipes & Tubes Manufacturer, 304 Stainless Steel Pipes & Tubes, Stainless Steel 304 ERW Tubes, SS 304L Seamless Tubes Exporter
Stainless Steel UNS S30403 Seamless Pipes, SS UNS S30400 Welded Tubes, Stainless Steel 304 Round Pipes & Tubes, SS 304 Square Pipes & Tubes, UNS S30409 Stainless Steel Rectangular Pipes & Tubes, EFW SS 304 Tubes & Pipes

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TP304 304 Stainless Steel Pipes & Tubes

 Stainless Steel 304 Pipes Supplier, ASTM A312 SS 304 Pipes, ASTM A312 Stainless Steel 304 Tubes, 304 Stainless Steel Pipes & Tubes Manufacturer, 304 Stainless Steel Pipes & Tubes, Stainless Steel 304 ERW Tubes, SS 304L Seamless Tubes Exporter

Stainless Steel UNS S30403 Seamless Pipes, SS UNS S30400 Welded Tubes, Stainless Steel 304 Round Pipes & Tubes, SS 304 Square Pipes & Tubes, UNS S30409 Stainless Steel Rectangular Pipes & Tubes, EFW SS 304 Tubes & Pipes in China

 We are  preferred manufacturer, exporter & supplier of 304 Stainless Steel Pipes & Tubes, 304L Stainless Steel Pipes & Tubes  and 304H Stainless Steel Pipes & Tubes. We have a wide variety of grades, materials, and finishes for pipes & tubes.  These products used in various industries such as Manufacturing, Mining, Oil Refineries, Chemical Manufacturing, Utilization, and Transport Industries.


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Specifications for 304/ 304L /304H Stainless Steel Pipes & Tubes

These are the Standard specifications of 304/ 304L /304H Stainless Steel Pipes & Tubes. We also manufacture and export any custom specification as per client’s requirement. 

SpecificationsASTM A/ASME SA213/A249/A269/A312/A358
DimensionsASTM, ASME, and API
Size1/8″NB TO 30″NB IN
304 Pipes & Tubes Size1/2″ NB – 16″ NB
ERW 304 Pipes & Tubes1/2″ NB – 24″ NB
EFW 304 Pipes & Tubes6″ NB – 100″ NB
Thickness0.3mm – 50 mm
Specialized inLarge Diameter Size
ScheduleSCH5, SCH10, SCH20, SCH30, SCH40, STD, SCH80, SCH 80S, SCH60, SCH80, SCH120, SCH140, SCH160, SCH XXS, SCH XS
TypeSeamless / ERW / Welded / Fabricated / LSAW Pipes
FormRound, Square, Rectangular, Hydraulic, Oval, U Shape, Pan Cake Coils, Coiled Etc
LengthSingle Random, Double Random & Required Length.
EndPlain End, Beveled End, Treaded


Types of 304/ 304L /304H Stainless Steel Pipes & Tubes


SS 304 Seamless Pipes & Tubes304L Stainless Steel Seamless Pipes & Tubes
WERKSTOFF NR. 1.4948 Seamless Pipes & TubesUNS S30400 Welded Pipes & Tubes
SS 304L ERW Pipes & TubessStainless Steel 304H EFW Pipes & Tubes
304 SS Round Pipes & TubesSS UNS S30403 Round Pipes & Tubes
ASTM A312 TP 304H Stainless Steel Round Pipes & TubessGOST 08Х18Н10 Seamless Pipes & Tubess
SS 304L Square Pipes & Tubes304H Stainless Steel Square Pipes & Tubes
UNS S30400 Rectangular Pipes & TubesWERKSTOFF NR. 1.4306/1.4307 Rectangular Pipes & Tubes
SS 304H Rectangular Pipes & Tubes304 Stainless Steel Custom Pipes & Tubes
GOST 03Х18Н11 Custom Pipes & TubessASTM A312 TP 304H Stainless Steel Custom Pipes & Tubess
SS 304, 304L, 304H Polished Pipes & TubesUNS S30400 Decorative Pipes & Tubes
ASTM A312 TP 304L Stainless Steel Decorative Pipes & Tubess304H SS Decorative Pipes & Tubes
SS 304/304L Thick Wall Pipes & TubesUNS S30409 Thick Wall Pipes & Tubes
WERKSTOFF NR. 1.4301 Thin Wall Pipes & Tubes304L SS Thin Wall Pipes & Tubes
304H Stainless Steel Thin Wall Pipes & Tubes304 Stainless Steel Electropolished Pipes & Tubes
SS 304L Electropolished Pipes & TubesUNS S30409 Electropolished Pipes & Tubes


304/ 304L /304H Stainless Steel Pipes & Tubes Chemical Composition

GradeCMnSiPSCrMoNiN
304min.18.08.0
max.0.082.00.750.0450.03020.010.50.10

304Lmin.18.08.0
max.0.032.01.000.0450.0320.012.0

304Hmin.18.08.0
max.0.032.01.000.0450.0320.012.0

Mechanical Properties of 304/ 304L /304H Stainless Steel Pipes & Tubes

GradeTensile Strength (MPa) minYield Strength 0.2% Proof (MPa) minElongation (% in 50mm) minHardness
Rockwell B (HR B) maxBrinell (HB) max



3045152054092201
304L4851704092201
304H5152054092201


SUS304TP / 1.4301 Stainless Steel Pipes & Tubes

GradeDensity (kg/m3)Elastic Modulus (GPa)Mean Coefficient of Thermal Expansion (m/m/0C)Thermal Conductivity (W/m.K)Specific Heat 0-1000C (J/kg.K)Electrical Resistivity (n.m)


0-1000C0-3150C0-5380Cat 1000Cat 5000C




304800019317.217.818.416.221.5500720
304L800019317.217.818.416.221.5500720
304H800019317.217.818.416.221.5500720

SUS304TP / 1.4301 Stainless Steel Pipes & Tubes

GradeUNS NoOld BritishEuronormSwedish SSJapanese JIS

BSEnNoName



304S30400304S3158E1.4301X5CrNi18-102332SUS 304
304LS30403304S1158E1.4301X5CrNi18-102332SUS 304L
304HS30409304S1158E1.4948X5CrNi18-102332SUS 304H