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Basic Info.

Section Shape	Round
Mtc	3.1 or 3.2 Certificate
Delivery Condition	N, Q ,T
Cutting Service	Available
Transport Package	Seaworthy Standard Package
Specification	30-850mm
Trademark	SHUNFU
Origin	China
HS Code	7304192000
Production Capacity	50000tons/Year

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 A519
2. 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 Analysis
2) 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,