日韩?V无码一区二区三区不卡,女人18片毛片90分钟免费明星,成人乱婬AV日日摸夜夜爽

Hydraulic piston rod assembly

Upper support of large tonnage piston rod

Large tonnage hydraulic piston rod assembly

Telescopic piston rod assembly

Precision piston rod

Stainless steel precision piston rod

Precision piston rod

Stainless steel precision piston rod

Precision slender shaft

Stainless steel hydraulic piston rod

Hydraulic piston rod

55 record Prev 123 4 5 Next

Technical characteristics

材質(zhì) / Material quality	45#.ST52.25Mn.20#.20MnV6.42CrMo4.40Cr
尺寸 / Size	φ20-φ500mm
長(zhǎng)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(diào)質(zhì)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(yīng)淬火、調(diào)質(zhì)、調(diào)質(zhì)+中高頻感應(yīng)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(yàn) / Salt spray test	9級(jí) 150-300小時(shí) / 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(zhì)量證明 / Quality certificate	提供產(chǎn)品質(zhì)量報(bào)告、鍍鉻厚度報(bào)告、鹽霧測(cè)試報(bào)告等 Provide product quality reports, chromium plating thickness reports, salt spray test reports, etc
特殊要求 / Special requirements	根據(jù)客戶要求定制產(chǎn)品 Customizing products according to customer requirements

Chemical composition

材質(zhì) / 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(zhì) Material quality	抗拉強(qiáng)度 / Tensilestrength N/mm² （MPa）	屈服強(qiáng)度 / Yield strength N/mm² （MPa）	伸長(zhǎng)率 / Elongation E%	沖擊功 / Impactenergy J
45#冷拔 / 45 # Cold drawn	≥630	≥540	≥15	≥41
45#調(diào)質(zhì) / 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(guī)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(fù)公差
Ф22	3	6.9	0.02-0.041	0.02-0.053	0.02-0.072	負(fù)公差
Ф25	3.9	7.85	0.02-0.041	0.02-0.053	0.02-0.072	負(fù)公差
Ф28	4.8	8.8	0.02-0.041	0.02-0.053	0.02-0.072	負(fù)公差
Ф30	5.6	9.4	0.02-0.041	0.02-0.053	0.02-0.072	負(fù)公差
Ф32	6.3	10	0.025-0.05	0.02-0.064	0.02-0.087	負(fù)公差
Ф35	7.6	11	0.025-0.05	0.02-0.064	0.02-0.087	負(fù)公差
Ф36	8	11.3	0.025-0.05	0.02-0.064	0.02-0.087	負(fù)公差
Ф38	8.9	11.9	0.025-0.05	0.02-0.064	0.02-0.087	負(fù)公差
Ф40	9.9	12.6	0.025-0.05	0.02-0.064	0.02-0.087	負(fù)公差
Ф45	12.5	14.1	0.025-0.05	0.02-0.064	0.02-0.087	負(fù)公差
Ф50	15.4	15.7	0.025-0.05	0.02-0.064	0.02-0.087	負(fù)公差
Ф55	18.7	17.3	0.03-0.06	0.03-0.076	0.03-0.104	負(fù)公差
Ф56	19.3	17.6	0.03-0.06	0.03-0.076	0.03-0.104	負(fù)公差
Ф60	22.2	18.8	0.03-0.06	0.03-0.076	0.03-0.104	負(fù)公差
Ф63	24.5	19.8	0.03-0.06	0.03-0.076	0.03-0.104	負(fù)公差
Ф65	26.1	20.4	0.03-0.06	0.03-0.076	0.03-0.104	負(fù)公差
Ф70	30.2	22	0.03-0.06	0.03-0.076	0.03-0.104	負(fù)公差
Ф75	34.7	23.6	0.03-0.06	0.03-0.076	0.03-0.104	負(fù)公差
Ф80	39.5	25.1	0.03-0.06	0.03-0.076	0.03-0.104	負(fù)公差
Ф85	44.6	26.7	0.036-0.071	0.036-0.09	0.036-0.123	負(fù)公差
Ф90	50	28.3	0.036-0.071	0.036-0.09	0.036-0.123	負(fù)公差
Ф95	55.7	29.8	0.036-0.071	0.036-0.09	0.036-0.123	負(fù)公差
Ф100	61.7	31.4	0.036-0.071	0.036-0.09	0.036-0.123	負(fù)公差
Ф105	68	33	0.036-0.071	0.036-0.09	0.036-0.123	負(fù)公差
Ф110	74.7	34.5	0.036-0.071	0.036-0.09	0.036-0.123	負(fù)公差
Ф115	81.6	36.1	0.036-0.071	0.036-0.09	0.036-0.123	負(fù)公差
Ф120	88.8	37.7	0.036-0.071	0.036-0.09	0.036-0.123	負(fù)公差
Ф125	96	39.3	0.043-0.083	0.043-0.106	0.043-0.143	負(fù)公差
Ф130	104.3	40.8	0.043-0.083	0.043-0.106	0.043-0.143	負(fù)公差
Ф140	120.9	44	0.043-0.083	0.043-0.106	0.043-0.143	負(fù)公差
Ф150	138.8	47.1	0.043-0.083	0.043-0.106	0.043-0.143	負(fù)公差
Ф160	157.9	50.2	0.043-0.083	0.043-0.106	0.043-0.143	負(fù)公差
Ф170	178.3	53.4	0.043-0.083	0.043-0.106	0.043-0.143	負(fù)公差
Ф180	199.9	56.5	0.043-0.083	0.043-0.106	0.043-0.143	負(fù)公差
Ф190	222.7	59.7	0.05-0.096	0.05-0.122	0.05-0.165	負(fù)公差
Ф200	246.8	62.8	0.05-0.096	0.05-0.122	0.05-0.165	負(fù)公差
Ф210	272.1	66	0.05-0.096	0.05-0.122	0.05-0.165	負(fù)公差
Ф220	298.6	69.1	0.05-0.096	0.05-0.122	0.05-0.165	負(fù)公差
Ф230	326.4	72.2	0.05-0.096	0.05-0.122	0.05-0.165	負(fù)公差
Ф240	355.4	75.4	0.05-0.096	0.05-0.122	0.05-0.165	負(fù)公差
Ф250	385.6	78.5	0.05-0.096	0.05-0.122	0.05-0.165	負(fù)公差

丰满人妻av一区,91色老久久精品偷偷蜜臀,黄污色污国产高清无码在线观看,国产丝袜视频在线观看