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GB/T 3203 Cold Drawn Cold Rolled Seamless Steel Tube Precision Bearing Steel Tube

Minimum Order Quantity : 2 tons Price : Negotiable
Packaging Details : Packed in wooden boxes or seaworthy packing. Delivery Time : 25--30days
Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram Supply Ability : 20000 Ton/Tons per Year
Place of Origin: Zhejiang, China Brand Name: TORICH
Certification: ISO Model Number: GB/T 3203

Detail Information

Product Name: GB/T 3203 Cold Drawn Cold Rolled Seamless Steel Tube Precision Bearing Steel Tube Keyword: Precision Bearing Steel Tube
Standard: DIN17230, NF A35-565, GB/T 3203, YB-T 4146 , SKFD33 , S13000 , GOST801-78 Grade: GCr15(52100,SUJ2,SUJ3,100Cr6, SKF3S), 20CrNiMo(8620H,4118H) SKF,30Cr13
Technical: Cold Drawn Cold Rolled Brand: TORICH
High Light:

precision steel pipe

,

precision seamless pipe

Product Description

GB/T 3203 Cold Drawn Cold Rolled Seamless Steel Tube Precision Bearing Steel Tube

 

Carburizing is the process of ordering carbon atoms into the steel surface. It is also to make the low carbon

steel workpiece with high carbon steel surface layer, and then after quenching and low temperature tempering,

the surface layer of the workpiece has high hardness and wear resistance, and the central part of the workpiece

still maintains the toughness and plasticity of low carbon steel.

 

Carburizing workpiece material is generally low carbon steel or low carbon alloy steel (carbon content is less

than 0.25%). After carburizing, the chemical composition of the steel surface can be close to high carbon steel.

The workpiece carburized after quenching, in order to get high surface hardness, high wear resistance and fatigue

strength, and maintain the core of low carbon steel quenched strong shear, so that the workpiece can withstand

the impact load. Carburizing machine is widely used in aircraft, cars and tractors, such as gear, shaft, camshaft and so on.

 

Product name: GB/T 3203 Cold Drawn Cold Rolled Seamless Steel Tube Precision Bearing Steel Tube
Standard: DIN17230, NF A35-565, GB/T 3203, YB-T 4146 , SKFD33 , S13000 , GOST801-78
Grade: G20CrMo, G20CrNiMo, G20CrNi2Mo, G20Cr2Ni4, Gl0CrNi3Mo, G20Cr2Mn2Mo, G23Cr2Ni2SilMo, GCr15(52100,SUJ2,SUJ3,100Cr6, SKF3S), 20CrNiMo(8620H,4118H) SKF,30Cr13
Technical: Cold Drawn Cold Rolled
Size Range:

OD: 5-114 mm

WT: 1-14 mm

Or according to customers' actual application and production.

Application: automotive, electrical, instrumentation,aerospace etc.


Chemical Composition

Chemical Composition (%)

Steel Grade

C

Si

Mn

Cr

Ni

Mo

Cu

G20CrMo

0.17~0.23

0.20~0.35

0.65~0.95

0.35~0.65

≤0.30

0.08~0.15

≤0.25

G20CrNiMo

0.17~0.23

0.15~0.40

0.60~0.90

0.35~0.65

0.40~0.70

0.15~0.30

≤0.25

G20CrNi2Mo

0.19~0.23

0.25~0.40

0.55~0.70

0.45~0.65

1.60~2.00

0.20~0.30

≤0.25

G20Cr2Ni4

0.17~0.23

0.15~0.40

0.30~0.60

1.25~1.75

3.25~3.75

≤0.08

≤0.25

Gl0CrNi3Mo

0.08~0.13

0.15~0.40

0.40~0.70

1.00~1.40

3.00~3.50

0.08~0.15

≤0.25

G20Cr2Mn2Mo

0.17~0.23

0.15~0.40

1.30~1.60

1.70~2.00

≤0.30

0.20~0.30

≤0.25

G23Cr2Ni2SilMo

0.20~0.25

1.20~1.50

0.20~0.40

1.35~1.75

2.20~2.60

0.25~0.35

≤0.25

 

Delivery Condition:

Steel types State of delivery Code Hardness of delivery /HBW
G20Cr2Ni4 Other grade
Hot rolled round steel Hot rolling WHR(or AR) - -
Hot rolling desisting WHR+SA 241 229
Forging round steel Hot forging WHF - -
Hot forging annealing WHF+SA 241 229
Cold-drawn round steel Cold drawing WCD 241 229
Silver round steel Peeling or polishing SF or SP 241 229


Product Show:

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Company Introduction:

GB/T 3203 Cold Drawn Cold Rolled Seamless Steel Tube Precision Bearing Steel Tube 2

739EC0BE19C8A333FFFB4046FC26BF47

73F8B1066F5BA7EF137E8CE8A5F48C96

 

Packing and Delivery:

 

92D4982D9F69A16C9CC88CB38687176E

 

Quality Control:

 

1. Incoming Raw Material Inspection
2. Raw Material Segregation to avoid steel grade mix-up
3. Heating and Hammering End for Cold Drawing
4. Cold Drawing and Cold Rolling, on line inspection
5. Heat Treatment, +A, +SRA, +LC, +N, Q+T
6. Straightening-Cutting to specified length-Finished Measuring Inspection
7. Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8. Packing and Stocking.

 

quality control
100% of our steel tubes are dimensionally checked
100% of our steel tubes are visually checked to assure they have a perfect surface condition and no surface defects.
100% eddy current test and ultrosonic test to eliminate longitudinal and transversal defects.

 

FAQ:

Q: Are you trading company or manufacturer ?

A: A professional steel pipes materials inventor, manufacturer and solution provider

 

Q: How long is your delivery time?

A: Generally it is 7-14 days if the goods are in stock. or it is 30-60 days if the goods are not in stock, it is according to quantity.

 

Q: Do you provide samples ? is it free or extra ?

A: Yes, we could offer the sample for free charge but need pay the cost of freight.

 

Q: What is your terms of payment ?

A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.


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GB/T 3203 Cold Drawn Cold Rolled Seamless Steel Tube Precision Bearing Steel Tube

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