Cylinder using cold rolled seamless precision steel tubes

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

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