【17-4PH加工范围及工艺】

17-4PH所属钢种类别： » 不锈钢 Stainless steel

我厂主要以生产销售17-4PH锻件,17-4PH钢锭,17-4PH电渣锭,17-4PH棒料,17-4PH钢材,17-4PH钢管,17-4PH钢板,17-4PH圆钢特殊钢材,提供最新17-4PH价格，长期有17-4PH现货,还包括17-4PH锻造、17-4PH热轧、17-4PH挤压钢材：17-4PH圆钢、17-4PH方钢、17-4PH板、17-4PH卷、17-4PH线、17-4PH锻件、17-4PH管等，欢迎来电洽谈！产品涉足领域广，技术优势明显。可为您提供优质的售前，售中及售后服务！广交天下朋友，诚信做人做事！

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【17-4PH形状规格】

17-4PH圆钢直径：1mm至3000mm

17-4PH方钢规格：50mm至1500mm

17-4PH板/扁钢：厚度0.1mm至2000mm；宽度：10mm至2000mm；长度：根据客户的要求;

17-4PH钢管：外径：6-1800mm*壁厚1-100

17-4PH锻件：台阶轴/桶件/管件/圆饼件/环件/模块/其它异型大型锻件;

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【交货状态】

热锻造/热轧+退火/正火/回火/淬火和回火/及根据客户的要求; 表面质量：黑皮/磨光/粗车/精车/及根据客户的要求;一般以热处理状态交货，其热处理种类在合同中注明；未注明者，按不热处理状态交货。

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【冶炼工艺】

电弧炉+LF炉/VD炉/电渣重熔/真空自耗炉;

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【产品检测】

超声波测试,确保通过超声波探伤合格及根据客户的要求;

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【17-4PH化学成分】

关于17-4PH的化学成分请点击下载：点击下载17-4PH化学成分,该文档包括17-4PH所含各金属元素%，比如Cr含量、Ni含量、C含量等。

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【17-4PH机械性能】

抗拉强度σb(MN/m2) >=550
屈服强度σs(MN/m2) >=200
伸长率δ5（%）〉=40
收缩率ψ（%）〉=55
硬度 ：≤187HB;≤90HRB;≤200HV
我国的17-4PH相当于美国AISIXXX,17-4PH相当于AISIXXX,17-4PH=中国台湾XXX=国际标准XXXX=俄罗斯17-4PH=日本17-4PH= 德国 17-4PH-10=美国 17-4PH 　　如果用于700℃的高温，17-4PH 应该是可以胜任的，因为它既是奥氏体不锈钢，又是应用很广泛的奥氏体热强钢，不过最好不要超过750℃，其热处理为固溶处理，即加热至1000℃以上，保温一定时间 后水淬，再采用高于使用温度60~100℃做时效。量等。

点击下载17-4PH机械性能

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【17-4PH热处理工艺】

条件A - 1900（1038 C）浸泡30分钟，低于60架F（16℃）为完整的马氏体相变冷却。条件H 950 - 治疗条件为1小时，空气中冷却的材料在900 F（482 C）.. 条件H925，H1025，H1075，H1100，H1150浸泡4个小时的解决方案处理后的材料在特定的温度，空气凉爽，条件H1150M，浸泡溶液处理后的材料在1400℉（760 C），2小时，空气冷却，然后再热1150 F为4小时，空气冷却（620 C）。

点击下载17-4PH热处理工艺

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【17-4PH焊接性能】

成功常见的融合和阻力方法焊接，这不应该被加入合金氧乙炔焊。如果需要的话，建议AWS E/ER630填料金属。

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【17-4PH切削性能】

易切削钢。

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17-4PH

17-4PH is a precipitation hardening martensitic stainless steel, which combines high strength and hardness (after heat treatment) wich excellent corrosion resistance, and is suitable for easy fabrication.

TYPICAL ANALYSIS

C.	Mn.	P.	S.	Si.	Cr.	Ni.	Cu.	Nb.+Ta..
0.07%	1.00%	0.04%	0.03%	1.00%	15.00-	3.00-	3.00-	0.15-
max.	max.	max.	max.	max.	17.50%	5.00%	5.00%	0.45%

Solution Treatments.
As supplied 17-4PH is usuall in the solution treated condition (Condition A). It can be heat treated at different temperatures to offer a wide range of properties. (We also hold stock in H1150+H1150, and annealed block).

Condition	Hardening	Hardening	Type of Cooling	Hardness
	Temperature	Time		Brinell	Rockwell C
A	1038°C	1/2	Oil/Air (to below 32°C)	363 max.	39 max.
H900	480°C	1	Air	420	44
H925	495°C	4	Air	409	42
H1025	550°C	4	Air	352	38
H1075	580°C	4	Air	341	36
H1100	595°C	4	Air	332	35
H1150	621°C	4	Air	311	33
H1150+H1150	760°C 760°C	4 followed by 4	Air Air	302	33
H1150-M	760°C 620°C	2 followed by 4	Air Air	277	27

 
          Typical Mechanical Properties (longitudinal)

	Condition:
	A	H900	H925	H1025	H1075	H1100	H1150	H1150+   H1150	H1150M
Tensile Strength N/mm2	1034	1380	1310	1170	1140	1035	1000	965	860
0.2% YS N/mm2	760	1275	1200	1140	1035	930	860	760	585
Reduction of Area      %	30-60	50	54	56	58	58	60	60	68
Elongation %	6-15	14	14	15	16	17	19	20	22
Charpy Impact J	-	20	34	47	54	61	68	108	135

 

Corrosion Resistance
17-4PH stainless steel has excellent corrosion resistance. Corrosion tests and service experience have shown that in all aged conditions it is superior to standard hardenable stainless grades such as 420, 431 and 410. Its corrosion resistance is comparable to grade 304 Stainless.

Welding
Arc and resistance welding processes used on standard grades of stainless steel are applicable to 17-4PH stainless steel. The low hardness enables sections, up to 100mm, to be welded without requiring pre heating.

Fabrication
17-4PH Condition is suitable for limited cold forming, H1100, H1150 and overaged conditions are more suitable when severe cold forming is required.

Machining
17-4PH Condition has machining characteristics similar to stainless grades 302, 304 and 410. The high hardness and strength in Condition H900 is the most difficult to machine and the material should be machined at 60% of the rate which is used for Condition A.

Nitriding
To increase the resistance to surface wear, with a slight decrease in corrosion resistance, 17-4PH stainless steel can be nitrided. An approximate hardness of 64/67HRc can be achieved, with a surface hardness depth of up to 0.15mm when nitrided at 540°C, while still maintaining a high core strength.