AISI 1020 4130 Carbon Seamless Mild DOM Tube

TORICH High Tensile Thin Wall 34mm MS 1010 Plastic End Caps for AISI 1020 46mm 4130 Carbon Seamless Mild ASTM A519 1026 DOM Tube

Steel Grade/Steel Material:

E155 E195 E235 E275 E355

Delivery Condition:

N    Normalized

Size Range:

O.D.:4-80mm

W.T.:1-8mm 

L:max 6000mm 

Characteristic:

Good concentricity

Good OD and ID tolerance

High precision

Stable quality

Smooth roughness

DOM Steel Tube Production Process:

Raw material → Incoming inspection  → Cutting  → Heating  → Piercing  → Hammering  →Pickling  → Cold-drawing  → Heat treatment  → Physical chemistry test → Straightening  → Ends cutting  → Final inspection  → Bundling  →Storage

Standard	Steel Grade	C	Si	Mn	P	S
EN 10305-1	E215	≤0.10	≤0.05	≤0.70	≤0.025	≤0.025
	E235	≤0.17	≤0.35	≤1.20	≤0.025	≤0.025
	E355	≤0.22	≤0.55	≤1.60	≤0.025	≤0.025
DIN 2391	St35	≤0.17	≤0.35	≥0.40	≤0.025	≤0.025
	St37.4	≤0.17	≤0.35	≥0.40	≤0.025	≤0.025
	St45	≤0.21	≤0.35	≥0.40	≤0.025	≤0.025
	St52	≤0.22	≤0.55	≤1.60	≤0.025	≤0.025
GB/T 3639	10	0.07-0.13	0.17-0.37	0.35-0.65	≤0.030	≤0.030
	20	0.17-0.23	0.17-0.37	0.35-0.65	≤0.030	≤0.030
	35	0.32-0.39	0.17-0.37	0.50-0.80	≤0.030	≤0.030
	45	0.42-0.50	0.17-0.37	0.50-0.80	≤0.030	≤0.030
	Q345B	≤0.20	≤0.50	≤1.70	≤0.030	≤0.030

Production Steel Tube:

Eddy Current Test and Ultrasonic Test:

Packing: