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Engineering machinery oil cylinder

55 record Prev 1 2 3 45

Technical characteristics

材質 / Material quality	45#.ST52.25Mn.20#.20MnV6.42CrMo4.40Cr
尺寸 / Size	φ20-φ500mm
長度 / Length	L200-20000mm
外徑公差 / Outer diameter tolerance	f7-f8（其他可定制 / Other customizable options）
鉻層厚度 / Chromium plating thicknes	0.02mm-0.50mm
表面粗糙度 / Surface roughness	≤0.05μm
直線度 / Straightness	≤0.1mm/m
調質處理 / Quenching and tempering hardness	HB220-360
高頻淬火 / High-frequency quenching	HRC50-60
表面硬度 / Surface hardness	800-1150HV
表面處理 / Surface treatment	鍍鉻、中高頻感應淬火、調質、調質+中高頻感應淬火 Chromium plating, medium and high frequency induction hardening, quenching and tempering, quenching and tempering+medium and high frequency induction hardening
鹽霧試驗 / Salt spray test	9級 150-300小時 / Level 9 150-300 hours
可焊接性 / Weldability	好 / good
包裝 / Packing	防銹油處理后每根套入防水紙管/木箱 After rust prevention oil treatment, each piece is wrapped in a waterproof paper tube / wooden box
質量證明 / Quality certificate	提供產品質量報告、鍍鉻厚度報告、鹽霧測試報告等 Provide product quality reports, chromium plating thickness reports, salt spray test reports, etc
特殊要求 / Special requirements	根據客戶要求定制產品 Customizing products according to customer requirements

Chemical composition

材質 / Material quality	C	Si	Mn	P	S	Cr	Ni	Cu	V
45#	0.42-0.50	0.17-0.37	0.50-0.80	≤0.035	≤0.035	≤0.25	≤0.30	≤0.25	/
ST52	≤0.20	≤0.50	≤1.70	≤0.035	≤0.035	≤0.30	≤0.50	≤0.30	≤0.15
25Mn	0.22-0.29	0.17-0.37	0.70-1.0	≤0.035	≤0.035	≤0.25	≤0.30	≤0.25	/
20#	0.17-0.23	0.17-0.37	0.35-0.65	≤0.035	≤0.035	≤0.25	≤0.30	≤0.25	/
20MnV6	0.16-0.22	0.10-0.50	1.30-1.70	≤0.035	≤0.035	≤0.30	≤0.30	≤0.30	0.10-0.20
42CrMo4	0.38-0.45	0.15-0.40	0.60-0.90	≤0.30	≤0.035	0.9-1.20	/	/	/
40Cr	0.37-0.45	0.17-0.37	0.50-0.80	≤0.035	≤0.035	0.8-1.10	≤0.30	≤0.30	/

Mechanical

材質 Material quality	抗拉強度 / Tensilestrength N/mm² （MPa）	屈服強度 / Yield strength N/mm² （MPa）	伸長率 / Elongation E%	沖擊功 / Impactenergy J
45#冷拔 / 45 # Cold drawn	≥630	≥540	≥15	≥41
45#調質 / 45 # Quenching and tempering	≥800	≥630	≥20	≥41
Q345D冷拔 / Q345D cold drawn	≥620	≥520	≥15	≥27（-20℃）
25Mn冷拔 / 25Mn cold drawn	≥620	≥520	≥15	/
20#冷拔 / 20 # cold drawn	≥520	≥400	≥15	/
20MnV6	≥750	≥590	≥12	≥40
42CrMo4	≥980	≥850	≥14	≥47
40Cr	≥1000	≥800	≥10	/

Solid chrome plated piston rod parameters

規格 Specifications	每米重 Weight per meter	鍍鉻面積 Chromium plating area	公差f7 Tolerance f7	公差f8 Tolerance f8	公差f9 Tolerance f9	備注 Remarks
Ф20	2.5	6.28	0.02-0.041	0.02-0.053	0.02-0.072	負公差
Ф22	3	6.9	0.02-0.041	0.02-0.053	0.02-0.072	負公差
Ф25	3.9	7.85	0.02-0.041	0.02-0.053	0.02-0.072	負公差
Ф28	4.8	8.8	0.02-0.041	0.02-0.053	0.02-0.072	負公差
Ф30	5.6	9.4	0.02-0.041	0.02-0.053	0.02-0.072	負公差
Ф32	6.3	10	0.025-0.05	0.02-0.064	0.02-0.087	負公差
Ф35	7.6	11	0.025-0.05	0.02-0.064	0.02-0.087	負公差
Ф36	8	11.3	0.025-0.05	0.02-0.064	0.02-0.087	負公差
Ф38	8.9	11.9	0.025-0.05	0.02-0.064	0.02-0.087	負公差
Ф40	9.9	12.6	0.025-0.05	0.02-0.064	0.02-0.087	負公差
Ф45	12.5	14.1	0.025-0.05	0.02-0.064	0.02-0.087	負公差
Ф50	15.4	15.7	0.025-0.05	0.02-0.064	0.02-0.087	負公差
Ф55	18.7	17.3	0.03-0.06	0.03-0.076	0.03-0.104	負公差
Ф56	19.3	17.6	0.03-0.06	0.03-0.076	0.03-0.104	負公差
Ф60	22.2	18.8	0.03-0.06	0.03-0.076	0.03-0.104	負公差
Ф63	24.5	19.8	0.03-0.06	0.03-0.076	0.03-0.104	負公差
Ф65	26.1	20.4	0.03-0.06	0.03-0.076	0.03-0.104	負公差
Ф70	30.2	22	0.03-0.06	0.03-0.076	0.03-0.104	負公差
Ф75	34.7	23.6	0.03-0.06	0.03-0.076	0.03-0.104	負公差
Ф80	39.5	25.1	0.03-0.06	0.03-0.076	0.03-0.104	負公差
Ф85	44.6	26.7	0.036-0.071	0.036-0.09	0.036-0.123	負公差
Ф90	50	28.3	0.036-0.071	0.036-0.09	0.036-0.123	負公差
Ф95	55.7	29.8	0.036-0.071	0.036-0.09	0.036-0.123	負公差
Ф100	61.7	31.4	0.036-0.071	0.036-0.09	0.036-0.123	負公差
Ф105	68	33	0.036-0.071	0.036-0.09	0.036-0.123	負公差
Ф110	74.7	34.5	0.036-0.071	0.036-0.09	0.036-0.123	負公差
Ф115	81.6	36.1	0.036-0.071	0.036-0.09	0.036-0.123	負公差
Ф120	88.8	37.7	0.036-0.071	0.036-0.09	0.036-0.123	負公差
Ф125	96	39.3	0.043-0.083	0.043-0.106	0.043-0.143	負公差
Ф130	104.3	40.8	0.043-0.083	0.043-0.106	0.043-0.143	負公差
Ф140	120.9	44	0.043-0.083	0.043-0.106	0.043-0.143	負公差
Ф150	138.8	47.1	0.043-0.083	0.043-0.106	0.043-0.143	負公差
Ф160	157.9	50.2	0.043-0.083	0.043-0.106	0.043-0.143	負公差
Ф170	178.3	53.4	0.043-0.083	0.043-0.106	0.043-0.143	負公差
Ф180	199.9	56.5	0.043-0.083	0.043-0.106	0.043-0.143	負公差
Ф190	222.7	59.7	0.05-0.096	0.05-0.122	0.05-0.165	負公差
Ф200	246.8	62.8	0.05-0.096	0.05-0.122	0.05-0.165	負公差
Ф210	272.1	66	0.05-0.096	0.05-0.122	0.05-0.165	負公差
Ф220	298.6	69.1	0.05-0.096	0.05-0.122	0.05-0.165	負公差
Ф230	326.4	72.2	0.05-0.096	0.05-0.122	0.05-0.165	負公差
Ф240	355.4	75.4	0.05-0.096	0.05-0.122	0.05-0.165	負公差
Ф250	385.6	78.5	0.05-0.096	0.05-0.122	0.05-0.165	負公差

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CHAIRMAN: Zhang Huiqiang +86-137 0618 5800

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