1.Detail information of ERW steel pipe

Product Name

Erw steel pipe

Standard

GB/T 3091-2001, BS1387-1985, ASTM A53,API 5L/API 5CT

Material

A53(A,B),A106(B,C),Q195,Q215,Q235,Q345, X42,X46,X52,X56,X60,X65,X70

Outer diameter

20~920mm

Wall thickness

1~30mm

Length

5-12m

Surface

Black painting.anti-corrosion oil.galvanized or as per required by customer

Pipe end

Plain, beveled, threaded ,coupled and with plastic caps protected

Package

In bundles or according to the clients'  requirements

Usage

Petroleum,chemical,power,gas,water,metallurgy,shipbuilding,construction,etc.

MOQ

5 ton

Quality

First Grade

Delivery Time

15~30 days

Yearly capacity 

200000 tons

Place of Orign

China

2.Chemical components and mechanical property 

standard

class

Chemical components and mechanical property 

Yield strength Mpa

Tensile strength Mpa

Elongation %

C    Mn     P    S

API Spec 5L

A
B
X42
X46
X52
X56
X60
X65
X70

207
241
290
317
359
386
414
448
483

331
414
414
434
455
490
517
531
565

0.21 0.6 0.030 0.030
0.22 1.2 0.025 0.015
0.22 1.3 0.025 0.015
0.22 1.4 0.025 0.015
0.22 1.4 0.025 0.015
0.22 1.4 0.025 0.015
0.22 1.4 0.025 0.015
0.22 1.45 0.025 0.015
0.22 1.65 0.025 0.015

GB/T9711

L175
L210
L245
L290
L360
L390
L415
L450
L485

175
210
245
290
360
390
415
450
485

315
335
415
415
460
490
520
525
570

27
25
21
21
19
18
17
17
16

0.21 0.60 0.030 0.030
0.21 0.90 0.030 0.030
0.26 1.15 0.030 0.030
0.28 1.25 0.030 0.030
0.30 1.25 0.030 0.030
0.26 1.35 0.030 0.030
0.26 1.35 0.030 0.030
0.26 1.40 0.030 0.030
0.23 1.60 0.030 0.030

3.API 5L outer diameter tolerance

OD

OD tolerance(mm)

SMLS

Weld pipe

SMLS

Weld pipe

OD<60.3

-0.8mm - +0.4mm

-0.4mm - 1.6mm

60.3≤OD≤168.3

±0.0075 X OD

168.3

±0.0075 X OD

±0.0075 X OD,MAX±3.2mm

±0.005 X OD,MAX±1.6mm

610<OD≤1422

±0.01 X OD

±0.005 X OD,MAX±4.0mm

±2.0mm

±1.6mm

4.API 5L Thickness tolerance

WT(mm)

tolerance(mm)

SMLS

WT≤4.0

+0.6mm

-0.5mm

4.0<WT<25mm

+0.150 x WT

-0.125 x WT

WT≥25.0

+3.7mm or +0.1 x WT

-3.0mm or -0.1 x WT

Weld pipe

WT≤5.0mm

±0.5mm

5.0mm<WT<15mm

±0.1 x WT

WT≥15.0mm

±1.5mm