30CrMo
Technical/Sample/Quality
Seamless
Hot-Rolled+Cold-Drawn
Alloy Steel
as Required
for Oil Equipment
Round
Available
3.1 or 3.2 Certificate
N, Q ,T
SHUNFU
Seaworthy Standard Package
30-850mm
China
7304192000
Product Description
ASTM A519 4130 Mechanical Tubes
4130 Steel Introduce
AISI or SAE 4130 grade is a low-alloy steel containing chromium and molybdenum as strengthening agents. The steel has good strength and toughness, weldability and machinability.AISI/SAE 4130 grade is a versatile alloy with good atmospheric corrosion resistance and reasonable strength. It shows good overall combinations of strength, toughness. and fatigue strength.
Standard:
EN 10216-2: 2014 Seamless steel tubes for pressure purposes. Non-alloy and alloy steel tubes with specified elevated temperature properties
EN 10305-1: 2010 Steel tubes for precision applications. Seamless cold drawn tubes.
EN 10297-1: 2003 Seamless circular steel tubes for mechanical and general engineering purposes. Non-alloy and alloy steel tubes.
Equivalent grades of steel 25CrMo4 (1.7218)
| EU | USA | Germany | Japan | France | England | Italy |
| EN | - | DIN,WNr | JIS | AFNOR | BS | UNI |
| 25CrMo4 | SAE4130 | 25CrMo4 | SCM420 | 25CD4 | 708A25 | 25CrMo4 |
Chemical Composition
| Grade | C | Mn | P | S | Si | Cr | Mo |
| 4130 | 0.28-0.33 | 0.40-0.60 | 0.035 | 0.040 | 0.15-0.35 | 0.80-1.10 | 0.15-0.25 |
| 25CrMo4/ 1.7218 | 0.22-0.29 | 0.60-0.90 | 0.025 | 0.035 | <=0.40 | 0.90-1.2 | 0.15-0.30 |
| SCM430/ SCM2 | 0.28-0.33 | 0.60-0.85 | 0.030 | 0.030 | 0.15-0.35 | 0.90-1.2 | 0.15-0.30 |
Technical Parameters:
1.Standard: ASTM A5192. Grade: 1020 1045,4130,4140
3.Tolerance :+0.05 -0.05
4. Process: cold rolled cold drawn
5. Delivery Condition: Cold worked, Annealed, Normalized, Stress Relieved etc.
6. BV SGS
Dimensions and Tolerances:
Outer diameter: 21 to 426 mm, wall thickness: 2 to 50 mm, length: Not more than 12 m.Delivery Condition:
Cold Worked, Stress Relieved, Annealed, Normalized.Package:
All pipes shall be marked, coated with oil and capped with plastic end protector. All items shall be plain end.Our Services:
Third Party inspection acceptable. such as SGS, BV etc.Supplying financial support with usance L/C 180 days after B/L date.
Tests we apply to the tubes:
1) Chemical Composition Analysis2) Mechanical Properties (Tensile strength, Yield strength,, Elongation, Hardness)
3) Technological Test (Flattening test, Flaring Test, Bending Test, Hydraulic pressure test)
4) Surface quality detection
5) Eddy-current examination
6) Visual test
Tag: ASTM A519 4130, mechanical tube, steel tube, steel pipe 4130 tube, 4130 pipe, astm a519, astm a519 1026,
