Seamless Precision Steel Pipe & tube

Seamless Precision Steel Pipe & tube

1.seamless steel tubing: Applicable to the general structure, mechanical structure with seamless steel tubes

2.OD: 15mm-80mm;WT:1mm-12mm
3.Standard: GB/T8162 , GB/T8163 ,ASTM A53 ,ASTM A106 ,DIN1629

4.Steel grade:

GB/T8162 , GB/T8163:10#, 20#, 35#, 45#, 16MN(Q345B)

 ASTM A53 GR. A , GR. B, GR. C

 ASTM A106  GR. A , GR. B, GR. C

 DIN 162 St 37.0, St 44.0, St 52.0

 API 5L  A B X42,X46, X52, X60, X65, X70, X80

5. Process method:cold rolling or cold drawn

6. Surface coating:varnish painted on pipe(black painting),anti-corrosion oil,galvanized,or painting as customer's request.

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, Eddy

current flaw detector), Hydrostatic Test.

Production process: 

Step1  steel bar                                                        Step 2  perforate                                                    Step 3  pickling

Step 4  cold-drawn                                                   Step 5   anneal                                                      Step 6   check

1 set of Φ 50 enhanced automatic peforating equipment

1 set of Φ 40 automatic peforating equipment

2 sets 10 tons chain cold-drawn machine

2 sets 15 tons chain cold-drawn machine

4 sets 20 tons chain cold-drawn machine

1 sets 45 tons chain cold-drawn machine

1 sets 65 tons chain cold-drawn machine

8 sets of LG30 type 2 roller cold-rolling mill

4 sets of LG40 type 2 roller cold-rolling mill

1 sets of LG50  2 roller cold-rolling mill

1 set roller type continuously heat treatment furnace

1 set of GJ Φ 20mm-80mm pipe straightening machine

1 set of GJ Φ 50mm pipe straightening machine

1 set of GJ Φ 6mm-12mm pipe straightening machine

Common pipe:

Special shape pipe: 

Finished products:

ASTM A 53 specification for black steel seamless pipes

ASTM A 106 Gr. B seamless carbon steel pipes for high-temperature service

ASTM A 161 seamless low-carbon and carbon molybdenum steel still tubes for refinery service

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

ASTM A192 specification for seamless carbon steel boiler tubes for high-pressure service

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

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!