Manufacturer

Yantai Xinpeng Steel Pipe Co,.Ltd

Brand  Name

Xinpeng

Business  Type

Manufacture & Sales

Product   Description

Cold Drawn High Precision ASTM A519 1020 Seamless Carbon Steel Tube

Outside Diameter  

(Inch)

Wall

 thickness

(Inch)

Outside 

Diameter

 (mm)

Wall

 thickness 

(mm)

From 1/2 to 5

From SCH40 to XXS

From 25 to 356

From4 to 80

Length

From 2m to 12.5m in accordance with customers' requirements

Material 

& 

Standard

Description

Chisese

American

German

          10#

ASTM A53-A

St37 DIN1626

ASTM A106-A

St37-2 DIN17175

ASTM A179-C

St35.8 DIN17175

ASTM A192

St35.8 DIN17175

20#

ASTM A53-B

St42-2 DIN1626

ASTM A106-B

St45-8 DIN17175

ASTM A178-C

St45-4 DIN1629

45#

ASTM A1045

CK45

16Mn

ASTM A210-C

St52 DIN1629

37Mn5

J55

27SiMn

CrMo

ASTM 4135,4150

CrMo4 DIN17212

40Cr

ASTM 5140

41Cr4

Standard

DIN2391, DIN2445, EN10305, GB/T 3639, GB 8713

Grade

ST35(E235), ST37, ST24(E255), ST52(E355), 10#, 20#, 35#, 45#

O.D.

4.0MM-400MM

W.T.

0.5MM-18MM

Surface Treatment

bare, varnished, oiled, anti-corrosion coating as request

Packing

1. bundle packing

2. marking as per customer's requests

3. paint on the pipe as per customer request

4. pipe caps as customer request

Condition of Delivery

1. NBK(+N)

after cold forming, eventually above phase transition point, in a protective atmosphere of annealing oxidation medium

2. GBK(+A)

after cold forming, annealing in non oxidizing medium protective gas

3. BK(+C)

the final heat treatment after cold forming, therefore small steel pipe plastically, the plastically degree does not guarantee

4. BKW(+LC)

after final heat treatment, a tiny cold drawing deformation, continue again when machining steel pipe allowed inside certain limits cold deformation(bending, flaring)

5. BKS(+SR)

have a stress relief after cold forming, heat treatment, steel pipe can be carried out within a certain limit in the appropriate processing again

OD x WT

OD x WT

OD x WT

OD x WT

48*31.75

98*80

154*130

45*35

45*30

100*85

137*115

35*25

25*19

121*100

94*80

125*100

50*40

120*100

90*80

90*70

40*30

140*120

80*70

100*70

65*50

123*105

111*95

120*100

70*57

146*125

50.5*44.5

31*25

48*40

165*140

158*135

76*55

58*50

176*150

160*135

77*57

60*50

194*160

149*125

77*59

70*50

30*25

42.5*31

Other size can work

95*80

128*110

190*160

OD

GB/T3639(GB8713)

DIN2391(EN10305)

Our Tolerance

Best Quality

4-30mm

±0.10mm

±0.08mm

±0.05mm

±0.02mm

31-40mm

±0.15mm

±0.15mm

±0.05mm

±0.03mm

41-50mm

±0.20mm

±0.20mm

±0.05mm

±0.03mm

51-60mm

±0.25mm

±0.25mm

±0.08mm

±0.03mm

61-70mm

±0.30mm

±0.30mm

±0.10mm

±0.05mm

71-160mm

±0.30mm

±0.30mm

±0.10mm

±0.05mm

Tolerance in WT

±0.12mm

±0.10mm

±0.05mm

±0.03mm

Process

Diameter

Length

Precision

Inner Hole Roughness

Cold Rolled

30-100mm

≤12 m

H8-H10

0.4-1.6

Cold Draw

30-250mm

≤12 m

H8-H10

0.8-1.6

Honing

40-500mm

≤12 m

H8-H9

0.4-0.8

Rolling

40-400mm

≤7 m

H8

0.4

Inner Diameter

H8

H9

H10

30mm

±0.033

±0.052

±0.084

5-30mm

30-50mm

±0.039

±0.062

±0.100

±0.080

50-80mm

±0.046

±0.074

±0.120

80-120mm

±0.054

±0.087

±0.140

120-180mm

±0.063

±0.100

±0.160

180-250mm

±0.072

±0.115

±0.185

250-315mm

±0.081

±0.130

±0.210

315-400mm

±0.089

±0.140

±0.230