A steel pipe with a prototype cross section is called a circular pipe. Round pipe is divided into welded round pipe and seamless steel pipe according to production process. Welded steel pipe can be divided into spiral welded pipe and straight seam welded pipe.
Royal Industry only focus on seamless steel tube as below:
Seamless steel tube for boiler
Application of Seamless steel tube for boiler: High, medium and low pressure boilers and pressure bearing
Delivery condition:Annealing, normalizing,normalizing + tempering and other heat treatment states
Surface treatment:Oil immersion, painting,passivation, phosphating,shot blasting, etc
|
Typical grade |
Specification |
|
ASTM A178 Grade A |
ASTM A178/A178M |
|
ASTM A178 Grade C |
|
ASTM A178 Grade D |
|
ASTM A192 |
ASTM A192/A192M |
|
320 CFS,360, 440, 243, |
BS3059 |
|
620-460, 622-490, |
|
S1, S2, TC1, TC2 |
|
P195TR1/TR2, |
EN10216 |
|
P235TR1/TR2, |
|
P265TR1/TR2, |
|
P195GH, P235GH, |
|
P265GH, TC1, TC2 |
|
ST35.8, ST45.8 |
DIN 17175 |
|
ST37.0, ST44.0, ST50.0 |
DIN 1629 |
|
STPG370, STPG410 |
JIS G3454 |
|
STB340, STB410, STB440 |
JIS G3461 |
Tubes for heat exchangers and condensers
Application of Tubes for heat exchangers and condensers: Heat exchanger, condenser, superheater or similar heat transfer equipment.
Delivery condition:Annealing, normalizing,normalizing + tempering and other heat treatment states
Surface treatment:Oil immersion, painting,passivation, phosphating,shot blasting, etc
|
Typical grade |
Specification |
|
ASTM A179 |
ASTM A179/A179M |
Oil casing, oil pipeline pipe
Application of Oil casing, oil pipeline pipe:Pipelines for gas, water and oil transmission in the petroleum and natural gas industry Petroleum and natural gas industries steel pipes for casing or tubing of oil and gas wells
Delivery condition:Annealing, normalizing,normalizing + tempering and other heat treatment states
Surface treatment:Oil immersion, painting,passivation, phosphating,shot blasting, etc
|
Typical grade |
Specification |
PSL1 L175/A25,L210/A, L245/B,L290/X42, L320/X46,L360/X52, L485/X70PSL2, L245R/BR,L290N/X42N,
L320N/X46N,
L360N/X52N, L415/X60N |
API 5L |
PSL1, PSL2, PSL3,
H40, J55, K55, N80 |
API 5CT |
Seamless steel pipe for fluid transportation
Application of Seamless steel pipe for fluid transportation:For conveying fluid.
Delivery condition:Annealing, normalizing,normalizing + tempering and other heat treatment states
Surface treatment:Oil immersion, painting,passivation, phosphating,shot blasting, etc
|
Typical grade |
Specification |
|
A106 Grade A,B,C |
ASTM A106/A106M |
|
A53 Grade A,B |
ASTM A53/A53M |
Precision seamless steel pipe for machinery and automobile
Application of Precision seamless steel pipe for machinery and automobile: Automobile half shaft sleeve and drive axle housing shaft tube Processing and manufacturing of precision equipment, instruments and structural parts
Delivery condition:Annealing, normalizing,normalizing + tempering and other heat treatment states
Surface treatment:Oil immersion, painting,passivation, phosphating,shot blasting, etc
|
Typical grade |
Specification |
|
St35,St45,St52 |
DIN2391 |
|
1010, 1020, 1025, 1035, 1045 |
ASTM A519 |
|
1010, 1020, 1025, 1035, 1040 |
ASTM A513 |
|
CFS,CFS3A,CFS4-11 |
BS6323 |
|
E215,E235,E355 |
EN10305-1 |
|
SCM415TK,SCM 430 TK, |
JIS G 3441 |
Shipbuilding pipe
Application of Shipbuilding pipe : It is used for manufacturing seamless steel pipes for marine boilers, superheaters and class I and II pressure pipe systems
Delivery condition:Annealing, normalizing,normalizing + tempering and other heat treatment states
Surface treatment:Oil immersion, painting,passivation, phosphating,shot blasting, etc
|
Typical grade |
Specification |
|
320,360,410,460,490 |
DNV-GL,LR,ABS, BV,RINA,NK |
Alloy material tube
Application of Alloy material tube: Boilers, superheaters and heat exchangers
Delivery condition:Annealing, normalizing,normalizing + tempering and other heat treatment states
Surface treatment:Oil immersion, painting,passivation, phosphating,shot blasting, etc
|
Typical grade |
Specification |
T11, T12, T22, T5, T9,P11, P12, P22, P5,
P9, ASTM A335/A335M |
ASTM A213/A213M, |
|
T11, T22, T5 |
ASTM A199/A199M |
|
T1, T1a, T1b |
ASTM A209/A209M |
|
10CrMo5-5, 11CrMo9-10, |
EN10216-2 |
|
X11CrMo5+1, TC1, TC2 |
Internally threaded pipe
Application of Internally threaded: pipe Boiler, chemical industry, electric power and other industries are applied to the water wall of subcritical and supercritical boilers above 300000 kW.
Delivery condition:Cold drawing, normalizing or normalizing plus tempering.
Surface treatment:Oil immersion, painting,passivation, phosphating,shot blasting, etc
|
Typical grade |
Specification |
|
SA210 |
ASME SA210/SA210M |
|
SA213 |
ASME SA213/SA213M |
