Delivery Time:45 days
Certification:PED, ISO9001:2008, KR, DNV, LR

DIN 2391 St 52.4 Seamless Cold Rolling Alloy Steel Tubes For Automobile Manufacturing

Specifications:

1. Main Standard

    DIN 2391-2

2. Material Grade:

Grade and Chemical Composition (％) Grade C ≤ Mn ≥ P≤ S≤ Si≤ ST35 0.17 0.4 0.025 0.025 0.35 ST45 0.21 0.4 0.025 0.025 0.35 ST52 0.22 1.6 0.025 0.025 0.55 Mechanical Properties(MPa): Grade Tensile Point Yield Point Elongation ST35 ≥315/-/235 ≥420/480/346-487 ≥14/6/25 ST45 ≥375/-/255 ≥520/580/440-570 ≥12/5/21 ST52 ≥420/-/355 ≥580/640/490-630 ≥10/4/22 DIMENSIONS MOQ MATERIAL Package Other Out Diameter: 19.05-508mm Wall thickness: 2-50mm Max length: 16m 1 ton ST35 ST45 ST52 bare packing/bundle packing/wooden carton packing Capacity: 4500ton/month Delivery: 30-60days after received your deposit Payment: T/T or L/C

Description:

1. Type

   Cold Rolling

2. Technology

    Cold Rolling

3. Size

   8~114.3 mm

4. Delivery Condition

    Bright Annealed

5. Surface Treatment

    Cold Rolling

Applications:

Petrochemical Industry	Screw drill, Drilling steel, Marine drilling platform, Production platform, etc.
Power Industry	Hydropower plant, Thermal power plant, nuclear power plant, etc.
Machinery Manufacturing	Automobile manufacturing, shipbuilding, Aerospace manufacturing, Fasteners, Bolts, Nuts, Automobile parts
Automobile manufacturing	Axles, Instruments, Electronic parts and components, , Sensors, Turbocharger system, exhaust system, Fasteners, Bolts, Nuts, Pumps, Valves, Tubes, Pipes, etc.
Others	Military industry, Environment protection, etc.

Advantage:

1. Scale of company

    Suzhou Double Gold Industry Co., Ltd. covers a area of 50000㎡,building 29000㎡,with a total investment of RMB 150 million CNY.

2. Production facilities

    We fit out a set of advanced steel production facility, such as AIM,EAF,AOD,LF, VOD, ESR, IESR, VIM and the processing equipment contains heat treatment furnace, peeling machine, roller straightening machine, cold drawing machine, coreless grinder etc.

3. Testing equipments

    We fit out advanced testing equipments which include German SPECTRO direct-reading spectrometer, hardness and tensile machine, impact testing device, automatic & manual ultrasonic nondestructive detector, corrosion testing machine, metallurgical microscope etc.

4. Main customers

    Our main customers are GE, Dana, Panasonic, Bentler, Atlas Copco, Faurecia, CNPC, Sinopec, CNNC, CGN, CSIC etc.