ASTM A333 Grade 7 Standard covers seamless and welded steel pipe for low temperature service. The ASTM A333 Grade 7 steel involved is similar to AISI 4032 low alloy steel. ASTM A333 Grade 7 pipe shall be made by the seamless or welding process with the addition of no filler metal in the welding operation.
ASTM A333 grade 7 material chemical composition
Element |
Carbon, max |
Manganese |
Phosphorus, max |
Sulfur, max |
Silicon |
Nickel |
Chromium |
Copper |
Aluminum |
|
Grade 7 |
0.19 |
0.90max |
0.025 |
0.025 |
0.13-0.32 |
2.03-2.57 |
- |
- |
- |
ASTM A333 Grade 7 welded steel pipe/tube mechanical properties
|
|
Grade 7 |
|
|
|
Psi |
MPa |
|
Tensile strength, min |
65 000 |
450 |
|
Yield strength, min |
35 000 |
240 |
|
|
Longitudinal |
Transverse |
|
Elongation in 2 in. or 50 mm, (or 4D), min, %: |
|
|
|
Basic minimum elongation for walls5 ⁄16 in. [8 mm] and over in thickness, strip tests, and for all small sizes tested in full section |
30 |
22 |
|
When standard round 2-in. or 50-mm gage length or proportionally smaller size test specimen with the gage length equal to 4D (4 times the diameter) is used |
22 |
14 |
|
For strip tests, a deduction for each1 ⁄32 in. [0.8 mm] decrease in wall thickness below5 ⁄16 in. [8 mm] from the basic minimum elongation of the following percentage |
1.50 |
1.00 |
ASTM A333 Grade 7 steel Specifications or Size:
Round bar:
Diameter : 1mm-2000mm
Square bar:
Size: 50mm * 50mm-600mm *600mm
Plate steel/flat bar:
Size: Thickness: 0.1mm-800mm Width: 10mm to 1500mm
Tube/pipe:
Size: OD: 6-219mm WT: 1-35 mm.
Cold-rolled sheet: Thickness: 2-5mm Width:1000mm Length: 2000mm
Hot-rolled sheet: Thickness:6-80mm Width: 210-610mm
ASTM A333 Grade 7 steel pipe Specifications or Size:Out Diameter 12.5mm—824mm ；Wall Thickness : 2mm—100mm；Length: Random length, Fixed Length, SRL, DRL
Heat treatment:Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting
ASTM A333 Grade 7 steel Surface treatment:PVC,black and color painting；Transparent oil,anti-rust oil；According to clients requirement
Finished goods condition:hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering/any conditions based on the customer's requirement
Payment : TT, LC,DP are all ok
Trade Terms : FOB / CFR /CIF
Delivery period: according to the material ,the standard, and the quantity of the contract.
ASTM A333 Grade 7 steel tube application can be offered by KATALOR in China ,KATALOR is professional ASTM A333 Grade 7 steel tube suppliers and manufacturer ,if you need ASTM A333 Grade 7 steel tube price and specification ,please contact us.
