GB/T 3077 38CrMoAL Cold Drawn Carton Seamless Alloy Steel Pipe For Automobile Industry
Contact Person : Richard SHEN
Phone Number : +86-13736164628
WhatsApp : +8613736164628
Minimum Order Quantity : | 5 Tons | Price : | negotiable |
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Packaging Details : | In bundles with seaworthy packing | Delivery Time : | 30-45 Days |
Payment Terms : | L/C, D/A, D/P, T/T, Western Union, MoneyGram | Supply Ability : | 60000 Tons per Year |
Place of Origin: | China | Brand Name: | Torich |
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Certification: | ISO 9001-2008 ISO14001 TS16949 DNV | Model Number: | GB28884 |
Detail Information |
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Product Name: | GB28884 300-3000L Seamless Steel Tubes For Large Volume Gas Cylinder | Type: | Seamless Steel Tube |
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Material: | 30CrMoE 42CrMoE | Surface: | Oiled |
Usage: | Large Volume Gas Cylinder | Shape: | Round Shape |
Manufacturing Technique: | Hot Rolled | Length: | 4-12m |
OD: | 80-1200mm | WT: | 4-100mm |
High Light: | seamless steel pipe,seamless carbon steel tube |
Product Description
GB28884 300-3000L Seamless Steel Tubes for Large Volume Gas Cylinder
Application:
Manufacturing gas cylinder with 300L~3000L volume
size:
Length:4-12m
OD:80-1200mm
WT:4-100mm
Refining method of steel:
The Steel is processed by electric arc furnace and refining outside the furance and vacuum refining,or oxygen converter refining outside the furnace and vacuum refining.
Manufacturing method of steel tube:
Steel pipe in hot rolling(enlarge) state,cold drawn or cold drawn after heat treatment state delivery.
The surface quality:
No crack ,folding,delamination and scarring on insideand outside surface.
Test item:
Tensile test
Hardness test
Impact test
Non-metalic inclusion test
Grain size test
Ultrasonic flaw detection
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 Property
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 |
-10oCShock absorption energy KV2J | |
Average | A single sample | ||||||
30CrMoEb | ≥720 | ≥485 | ≥20 | ≤86 | ≤269 | ≥40 | ≥32 |
42CrMoEc | ≥930 | ≥760 | ≥16 | - | ≤330 | ≥40 | ≥32 |
b 30CrMoE mechanical property is equivanlent to 4130X c 42CrMoE mechanical property is equivanlent to 4142 |
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