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GB 28884 300L - 3000L 30CrMoE 42CrMoE 4130X 4142 Seamless Steel Tubes for Large Volume Gas Cylinder

Minimum Order Quantity : 1 Ton Price : negotiable
Packaging Details : Packing in wooden, hexagonal box or other seaworthy ways Delivery Time : 20-25 days
Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram Supply Ability : USD 700-1100/Ton
Place of Origin: Zhejiang,China Brand Name: TORICH
Certification: ISO 9001 ISO 14001 TS 16949 Model Number: GB 28884

Detail Information

Product Name:: GB 28884 300L - 3000L 30CrMoE 42CrMoE 4130X 4142 Seamless Steel Tubes For Large Volume Gas Cylinder Keyword:: Seamless Steel Tubes
Material:: 30CrMoE 42CrMoE 4130X 4142 Shape:: Round
Usage:: For Gas Cylinder With 300L~3000L Volume OD:: 80-1200mm
WT:: 4-100m Length:: 2-12m
High Light:

seamless steel pipe

,

seamless carbon steel tube

Product Description

300L~3000L Seamless Steel Tubes for Large Volume Gas Cylinder GB 28884

SPEC:

Material:30CrMoE 42CrMoE 4130X 4142

Size Range:OD:80-1200mm

WT:4-100mm

General Length:4-12m

 

Characteristic:

Good concentricity

Good surface quality

Good OD and ID tolerance

High Precision

Stable quality

Smooth Roughness

TORICH QUALITY ASSURANCE

 

Tolerance:

According to the following tables or customers’ request.

 

Category Size Tolerance
Outside Diameter(D) - ±1%D
Minimum Wall Thickness(Smin) D≤559

+25%Smin

0

D>559

+27.5%Smin

0

Wall Thickness(S) D≤559

+12.5%S

-10%S

D>559 ±12.5%S

 

Mechanical Properties:

 

Steel Tensile Strength Lower yield strength or specified plasticity elongation percentage elongation after fracture Yield ratio Hardness -40℃ Shock absorption energy
Grade         HBW KV2/
  Ra / ReL or Rp0.2a / A50mma/ (ReL/Ra orRp0.2/Ra)/%   J
  MPa MPa %     Average Single Sample
30CrMoEb ≥720 ≥485 ≥20 ≤86 ≤269 ≥40 ≥32
42CrMoEc ≥930 ≥760 ≥16 - ≤330 ≥40 ≥32
Grade 30CrMoE mechanical property is equivanlent to 4130X
Grade 42CrMoE mechanical property is equivanlent to 4142

 

Chemical Compositions:

 

Steel

Grade

Tensile Strength

Ra /

MPa

Lower yield strength or specified plasticity elongation

ReL or Rp0.2a /

MPa

percentage elongation after fracture

A50mma/

%

yield ratio

(ReL/Ra or Rp0.2/Ra)/

%

Hardness

HBW

-10℃Shock absorption energy KV2/

J

Average Single Sample
30CrMoEb 720 485 20 86 269 40 32
42CrMoEc 930 760 16 - 330 40 32

 

Characteristic:

TORICH QUALITY ASSURANCE

Good surface quality

Good OD and ID tolerance controlled to Technical Standard
Stable quality
100% Eddy Current Test

 

Processing:

 

Technical Delivery Conditions:Steel pipe in hot rolling(enlarge) state,cold drawn or cold drawn after heat treatment state delivery.

 

Widely used in the field of:Manufacturing gas cylinder with 300L~3000L volume

 

 

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.

 

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.

 

Product Images:300L~3000L Seamless Steel Tubes for Large Volume Gas Cylinder GB 28884300L~3000L Seamless Steel Tubes for Large Volume Gas Cylinder GB 28884

GB 28884 300L - 3000L 30CrMoE 42CrMoE 4130X 4142 Seamless Steel Tubes for Large Volume Gas Cylinder 2

GB 28884 300L - 3000L 30CrMoE 42CrMoE 4130X 4142 Seamless Steel Tubes for Large Volume Gas Cylinder 3

 

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, and 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 you need to 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.
If you have another question, pls feel free to contact us

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