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Alloy Structural Steel bar

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.

Seamless steel tube for boiler, application is : High, medium and low pressure boilers and pressure bearing.

Typical grade

Specification

Delivery condition

Surface treatment

ASTM  A178  Grade A
ASTM  A178  Grade C
ASTM  A178  Grade D

ASTM A178/A178M

Annealing, normalizing,
normalizing + tempering
and other heat treatment states

Oil immersion, painting,
passivation, phosphating,
shot blasting, etc

ASTM A192

ASTM A192/A192M

320 CFS,360, 440, 243,
620-460, 622-490,
S1, S2, TC1, TC2

BS3059

P195TR1/TR2,
P235TR1/TR2,
P265TR1/TR2,
P195GH, P235GH,
P265GH, TC1, TC2

EN10216

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 whose application is : Heat exchanger, condenser, superheater or similar heat transfer equipment.

Typical grade

Specification

Delivery condition

Surface treatment

ASTM A179

ASTM A179/A179M

Annealing, normalizing,
normalizing + tempering
and other heat treatment states

Oil immersion, painting,
passivation, phosphating,
shot blasting, etc

Oil casing, oil pipeline pipe whose application is :Pipelines for gas, water and oil transmission in the petroleum and natural gas industries steel pipes for casing or tubing of oil and gas wells

Typical grade

Specification

Delivery condition

Surface treatment

PSL1  L175/A25,
L210/A, L245/B,
L290/X42, L320/X46,
L360/X52, L485/X70
PSL2  L245R/BR,
L290N/X42N,
L320N/X46N,
L360N/X52N, L415/X60N

API  5L

Annealing, normalizing,
normalizing + tempering
and other heat treatment states

Oil immersion, painting,
passivation, phosphating,
shot blasting, etc

PSL1, PSL2, PSL3,
H40, J55, K55, N80

API  5CT

Seamless steel pipe for fluid transportation whose application is : For conveying fluid

Typical grade

Specification

Delivery condition

Surface treatment

A106 Grade A,B,C

ASTM A106/A106M

Annealing, normalizing,
normalizing + tempering
and other heat treatment states

Oil immersion, painting,
passivation, phosphating,
shot blasting, etc

A53 Grade A,B

ASTM A53/A53M

Precision seamless steel pipe for machinery and automobile, whose application is : Automobile half shaft sleeve and drive axle housing shaft tube Processing and manufacturing of precision equipment, instruments and structural parts

Typical grade

Specification

Delivery condition

Surface treatment

St35,St45,St52

DIN2391

Annealing, normalizing,
normalizing + tempering
and other heat treatment states

Oil immersion, painting,
passivation, phosphating,
shot blasting, etc

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,
SCM 440 TK

JIS G 3441

Shipbuilding pipe whose application :  It is used for manufacturing seamless steel pipes for marine boilers, superheaters and class I and II pressure pipe systems

Typical grade

Specification

Delivery condition

Surface treatment

320,360,410,460,490

DNV-GL,LR,ABS,
BV,RINA,NK

Annealing, normalizing,
normalizing + tempering
and other heat treatment states

Oil immersion, painting,
passivation, phosphating,
shot blasting, etc

Alloy material tube whose application is : Boilers, superheaters and heat exchangers

Typical grade

Specification

Delivery condition

Surface treatment

T11, T12, T22, T5, T9

ASTM A213/A213M,

Annealing, normalizing,
normalizing + tempering
and other heat treatment states

Oil immersion, painting,
passivation, phosphating,
shot blasting, etc

P11, P12, P22, P5,
P9ASTM A335/A335M

 

T11, T22, T5

ASTM A199/A199M

T1, T1a, T1b

ASTM A209/A209M

10CrMo5-5, 11CrMo9-10,
X11CrMo5+1, TC1, TC2

EN10216-2

STBA 12, STBA13, STBA24

JIS G3462

Internally threaded pipe whose application is : Boiler, chemical industry, electric power and other industries are applied to the water wall of subcritical and supercritical boilers above 300000 kW

Typical grade

Specification

Delivery condition

Surface treatment

SA210

ASME SA210/SA210M

Cold drawing, normalizing
or normalizing plus tempering

Oil immersion, painting,
passivation, phosphating,
shot blasting, etc

SA213

ASME SA213/SA213M


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