Seamless Carbon Mild Heavy Thick Wall Steel Pipe

TORICH Seamless Carbon Mild 300mm Large Diameter ST37 15Mo3 High Pressure 4 Inch C45 Heavyr-caliber Heavy Thick Wall Steel Pipe

 

Size Range:

OD:20-300mm

WT: 5-50mm

Length: Max 12000mm

 

Characteristic:

Good OD and ID tolerance controlled to Technical Standard

Stable quality

 

Tolerances:
OD:
D 5 – 10 mm: ± 0.15 mm
D 11 – 30 mm: ± 0.30 mm
D 32 – 50 mm: ± 0.40 mm
D 51 – 140 mm: ± 0.8%
WT:
S 0.4 – 1 mm: ± 0.12 mm
S 1.2 – 5 mm: ± 10%
S 5.5 – 12 mm: ± 8%

Notes:
1. Steel grades: 10, 20, 35, 45, 10Mn2, 15Cr, 20Cr, 40Cr, 30CrMnSi, 15CrMo acc. to GOST 1050-88, GOST 19281-89, GOST 4543-71. Others steel grades are available subject to agreement.
2. Dimensions and tolerances acc. to GOST 8734-75.
3. Technical requirements acc. to GOST 8733-74.
4. Length from 1.5 to 11.5 m depending on diameter and wall thickness.

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: