AISI 4130 AISI 4140 Seamless Alloy Steel Pipe

Hebei province gold mysterious pipe co.,ltd is a professional seamless steel pipe manufacturer.Products include common seamless steel pipe,cold-drawing pipe,cold-rolling pipe and special shape pipes.

 AISI 4130, AISI 4140 Seamless Alloy Steel Pipe  

Test equipment:

Test: Chemical Component Analysis,

Mechanical Properties (Ultimate tensile strength,Yield strength, Elongation),

Technical Properties (Flattening Test, Flaring Test, Bending Test, Hardness Test,Blow Test, Impact Test etc), Exterior Size Inspection,

Nondestructive Test (Ultrasonic flaw detector/UT,Eddy current flaw detector/ET),

Hydrostatic Test.

Production process: 

Step1   material                                                        Step 2  perforate                                                    Step 3  pickling

Step 4  cold-drawn                                                Step 5   anneal                                                      Step 6   check

Common pipe:

OD:8mm-80mm       WT:1mm-14mm

Standard: ASTM,DIN,JIS,BS,GOST,ETC

Advantage: High quality & competitive price

Thermal Treatment: Annealed or Normalized ,as per relevant standards.

Surface coating:varnish painted,anti-corrosion oil,passivation or painting as customer's request.

Special shape pipe: 

We can produce square,rectangular,hexagonal,lemon,triangle,oval etc pipes.And can make special shape according to your drawing or sample 

Standard:

ASTM A179 specification for seamless cold-drawn low-carbon steel heat-exchanger and condenser tubes

ASTM A 210 specification for seamless medium-carbon steel boiler and superheater pipes

ASTM A 213 specification for seamless ferrite alloy steel boiler, superheater and heat-exchanger pipes

ASTM A 519 seamless carbon and alloy steel for mechanical tubing   4130,4140

ASTN A 556 seamless cold-drawn carbon steel feedwater heater tubes

DIN specifications seamless steel pipes

DIN 17175 seamless steel tube for elevated temperature

Material: St35.8, St45.8, 17Mn4, 19Mn5, 15Mo3, 13CrMo44

DIN 2391 cold drawn seamless precision pipes

Material: St35, St45, St52

DIN 2393 seamless steel pipes for structural purpose

Material: Rst34-2, Rst37-2, RSt44-2, St52

Usage:

 The pipes are widely used for the auto/motorcycle/agricultural machine/railway project/low-high pressure boiler tubes/bearing tubes/ships manufacturing industries/oil and other high standards & demand processing & manufacturing industries. 

Any of your questions will be ansered within 24 hours! Welcome to inquiry!