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The hydraulic press and the air operated cylinder tube uses high accuracy cold draw steel pipe

Specif：Cylinder tube inside diameter 30-500mm
Thickness：2-55mm
Material：20#、35#、45#、16Mn、27SiMn
Implementation of the standards：GB8713-88 ISO4394/I-1980(E)

Pressure pneumatic cylinder size and precision

Processing	Diameter(mm)	Long(m)	Straight(mm/m)	Diamet accuracy	Thickness	roughness(μm)
Drawing	40-320	≤12M	0.2-0.5	H8-H10	±5%	0.8-1.6
Rolling	30-100	≥12M	0.2-0.5	H8-H10	±5%	0.8-1.2
Drawing-May	40-500	8M	0.2-0.3	H7-H9	±5%	0.2-0.8
Drawing-roll	40-400	7M	0.2-0.3	H8-H9	±5%	0.2-0.4
Deep-hole	320-500	8M	0.2-0.3	H7-H9	±8%	0.2-0.8
Deep-rolling	320-500	7M	0.2-0.3	H8-H9	±8%	0.2-0.4

Mechanical Properties

Steel	Tensile StrengthσbN/mm2	YieldσsN/mm2	Elongationσs%	Hardness HB
20#	530	505	12	175
35#	610	575	8.5	190
45#	660	630	6	207
16Mn	595	570	9	190
27SiMn	840	805	7.5	230

Diameter tolerance GB1801-79

Inner Diameter(mm)	Diameter deviation
Inner Diameter(mm)	H7	H8	H9	H10
30	+21 0	+33 0	+52 0	+84 0
>30-50	+25 0	+39 0	+62 0	+100 0
>50-80	+30 0	+46 0	+74 0	+120 0
>80-120	+35 0	+54 0	+87 0	+140 0
>120-180	+40 0	+63 0	+100 0	+160 0
>180-250	+46 0	+72 0	+115 0	+185 0
>250-315	+52 0	+81 0	+170 0	+210 0
>315-400	+57 0	+89 0	+140 0	+230 0

Table size specifications for hydraulic, pneumatic cylinder

Pneumatic cylinder				Pneumatic cylinder
Inside diamt	Outer diamet	Thickn(mm)	weight kg/m	In-Diamet	Out-Diamet	Thick mm	weight kg/m
40	45	2.5	2.6201	160	170	5	20.3445
50	57	3.5	4.6176	160	172	6	24.5614
63	69	3	4.8827	180	194	7	32.2799
80	86	3	6.1403	200	214	7	35.7323
80	88	4	8.2858	200	216	8	41.0342
90	100	5	11.7135	200	219	9.5	49.0796
100	108	4	10.2586	250	266	8	50.8982
100	110	5	12.9465	250	273	11.5	74.1588
125	133	4	12.7246	300	320	10	76.4460
125	135	5	16.0290	320	340	10	81.3780
140	152	6	21.6022	400	426	13	132.3995
150	160	5	19.1115

Hydraulic cylinder				Hydraulic cylinder
Diamet mm	Diameter(mm)	Thickn(mm)	weight kg/m	In-Diamet	Out-Diamet	Thick mm	weight kg/m
40	50	5	5.5845	120	146	13	42.6371
40	55	7.5	8.7851	125	140	7.5	24.5059
45	60	7.5	9.7099	125	146	10.5	35.0850
50	60	5	6.7815	125	152	13.5	46.1080
50	63	6.5	9.0564	125	159	17	59.5292
50	65	7.5	10.6346	130	159	14.5	51.6689
50	70	10	14.7960	135	159	12	43.5002
55	70	7.5	11.5594	140	159	9.5	35.0234
56	66	5	7.5213	140	166	13	49.0487
63	73	5	8.3844	140	168	14	53.1670
63	76	6.5	11.1402	140	178	19	74.4979
63	80	8.5	14.9871	150	168	9	35.2885
63	83	10	19.0018	150	170	10	39.4560
65	80	7.5	13.4089	150	175	12.5	50.0906
70	80	5	9.2475	150	180	15	61.0335
70	83	6.5	12.2622	160	180	10	41.9220
70	86	8	15.3878	160	184	12	50.8982
70	90	10	19.7280	160	190	15	64.7325
75	90	7.5	15.2584	160	194	17	74.2019
80	93	6.5	13.8651	180	203	11.5	54.3075
80	95	7.5	16.1831	180	210	15	72.1305
80	100	10	22.1940	180	214	17	82.5863
80	102	11	24.6847	180	219	19.5	95.9336
80	108	14	32.4526	200	230	15	79.5285
90	104	7	16.7441	200	245	22.5	123.4541
90	108	9	21.9721	220	273	26.5	161.0853
90	114	12	30.1838	250	280	15	98.0235
100	114	7	18.4703	250	299	24.5	165.8447
100	121	10.5	28.6118	280	325	22.5	167.8421
100	127	13.5	37.7853	280	351	35.5	276.1982
110	126	8	23.2790	300	351	25.5	204.6842
110	133	11.5	34.4562	300	377	38.5	321.3753
110	140	15	46.2375	320	351	15.5	128.2382
120	140	10	32.0580	320	377	28.5	244.9293

Note : Other specifications and requirements can supply agreement.

Warmly congratulates the Wuxi Jin dynasty high accuracy cold draw steel pipe limited company website clear!