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30CrMoE 42CrMoE Hot Rolled / Cold Drawn Seamless Tube O.D 356-1000mm GB28884

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30CrMoE 42CrMoE Hot Rolled / Cold Drawn Seamless Tube O.D 356-1000mm GB28884

Brand Name : Torich

Model Number : GB28884

Certification : ISO9001:2008 ISO14001:2008

Place of Origin : Zhejiang, China (Mainland)

MOQ : 5 TON

Price : negotiable

Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram

Supply Ability : 25000 Ton/Tons per Year

Delivery Time : 30-40 WORK DAYS

Packaging Details : in bundles with seaworthy packing

Name : GB28884 30CrMoE, 42CrMoE Seamless Steel Tubes for 300-3000L Large Volume Gas Cylinder

Shape : Round

Grade : 30CrMoE, 42CrMoE

Usage : Gas Cylinder Pipe

Surface : annealed

OD : 356-1000mm

WT : 1-100mm

Length : 4-12m

Technique : Cold Drawn,Hot Rolled,Cold Rolled

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Product Name: GB28884 30CrMoE, 42CrMoE Seamless Steel Tubes for 300-3000L Large Volume Gas Cylinder

Size range: O.D.: 356-1000mm W.T.: 1-100mm L:max12000mm

Material: 30CrMoE, 42CrMoE

Applications: for 300-3000L Large Volume Gas Cylinder Applications, Oil Cylinders/Telescopic Cylinders, mechanical and general engineering purposes.

Tolerance:

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

Steel Grade and Chemical Component

No. Grade Group Chemical component,%
C Si Mn P S Cr Mo Ni Cu
1 30CrMoE 1a

0.25~

0.35

0.15~

0.35

0.40~

0.90

≤0.020 ≤0.010

0.80~

1.10

0.15~

0.25

≤0.30 ≤0.20
2 2

0.26~

0.34

0.17~

0.37

0.40~

0.70

≤0.020 ≤0.010

0.80~

1.10

0.15~

0.25

≤0.30 ≤0.20
3 42CrMoE 1b

0.40~

0.45

0.15~

0.35

0.75~

1.00

≤0.020 ≤0.010

0.80~

1.10

0.15~

0.25

≤0.30 ≤0.20
4 2

0.38~

0.45

0.17~

0.37

0.50~

0.80

≤0.020 ≤0.010

0.90~

1.20

0.15~

0.25

≤0.30 ≤0.20

a Grade30CrMoE group1 is equivalent to 4130X.

bGrade42CrMoE group1 is equivalent to 4142

MECHANICAL PROPORTIES:

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

-40℃ Shock absorption energy

KV2/

J

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

30CrMoE mechanical property is equivanlent to 4130X

42CrMoE mechanical property is equivanlent to 4142

30CrMoE 42CrMoE Hot Rolled / Cold Drawn Seamless Tube O.D 356-1000mm GB28884 30CrMoE 42CrMoE Hot Rolled / Cold Drawn Seamless Tube O.D 356-1000mm GB2888430CrMoE 42CrMoE Hot Rolled / Cold Drawn Seamless Tube O.D 356-1000mm GB28884

30CrMoE 42CrMoE Hot Rolled / Cold Drawn Seamless Tube O.D 356-1000mm GB28884 30CrMoE 42CrMoE Hot Rolled / Cold Drawn Seamless Tube O.D 356-1000mm GB28884

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 Tags:

seamless steel pipe

      

seamless carbon steel tube

      
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