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{"title":"ASTM A276 Bright Annealing UNS S17400 Stainless Steel Round Bar with OD 6-300mm","imgUrl":"https:\/\/img.chinax.com\/nimg\/7b\/89\/306dd724fb1650d6cc746b8a12eb-200x200-1\/astm_a276_bright_annealing_uns_s17400_stainless_steel_round_bar_with_od_6_300mm_and_precipitation_hardening.jpg","attrs":{"Certification":"ISO, AISI, ASTM, EN, DIN, JIS","Minimum Order Quantity":"50 kg","Price":"US $3.44-4.05 \/ kg","Shape":"Round"}}
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{"title":"Grade 201 Stainless Steel Bright Bar Hot Rolled with Diameter 3mm - 50mm","imgUrl":"https:\/\/img.chinax.com\/nimg\/0e\/ea\/ce4dbe173cf279904fc10574ef05-200x200-1\/grade_201_stainless_steel_bright_bar_hot_rolled_with_diameter_3mm_50mm.jpg","attrs":{"Certification":"ISO, AISI, ASTM, EN, DIN, JIS","Minimum Order Quantity":"50 kg","Price":"US $3.46-4.07 \/ kg","Shape":"Round"}}
{"title":"254smo\/1.4547 Bright Black Surface Stainless Steel Round Bar S31254 with OD 6","imgUrl":"https:\/\/img.chinax.com\/nimg\/3f\/55\/db5c514689afc19a56438986dd40-200x200-1\/254smo_2f1_4547_bright_black_surface_stainless_steel_round_bar_s31254_with_od_6_300mm.jpg","attrs":{"Certification":"ISO, AISI, ASTM, EN, DIN, JIS","Minimum Order Quantity":"50 kg","Price":"US $12-16.5 \/ kg","Shape":"Round"}}
{"title":"201 304 316L Stainless Steel Bright Bar with Bright Surface and OD 6-300mm","imgUrl":"https:\/\/img.chinax.com\/nimg\/33\/b9\/fa51a4537525415c1dc402a007ce-200x200-1\/201_304_316l_stainless_steel_bright_bar_with_bright_surface_and_od_6_300mm_mirror_polished_stainless_steel_round_bar.jpg","attrs":{"Certification":"ISO, AISI, ASTM, EN, DIN, JIS","Minimum Order Quantity":"50 kg","Price":"US $1.48-4.11 \/ kg","Shape":"Round"}}
SS 630 Stainless Steel Round Bar Bright AISI 630 17-4PH
17-4PH Stainless Steel Overview
17-4 Precipitation Hardening (Type 630) is a chromium-copper precipitation hardening stainless steel used for applications requiring high strength and moderate corrosion resistance. High strength is maintained to approximately 600°F (316°C).
General Properties
Alloy 17-4 PH is a precipitation hardening martensitic stainless steel with Cu and Nb/Cb additions. The grade combines high strength, hardness (up to 572°F / 300°C), and corrosion resistance.
Mechanical properties can be optimized with heat treatment. Very high yield strength up to 1100-1300 MPa (160-190 ksi) can be achieved.
This grade should not be used at temperatures above 572°F (300°C) or at very low temperatures. It has adequate resistance to atmospheric corrosion or in diluted acids or salts where its corrosion resistance is equivalent to Alloy 304 or 430.
Applications & Standards
Applications
Standards
Offshore (foils, helicopter deck platforms, etc.)
Food industry
Pulp and paper industry
Aerospace (turbine blades, etc.)
Mechanical components
Nuclear waste casks
ASTM A693 grade 630 (AMS 5604B) UNS S17400
EURONORM 1.4542 X5CrNiCuNb 16-4
AFNOR Z5 CNU 17-4PH
DIN 1.4542
Corrosion Resistance
Alloy 17-4 PH withstands corrosive attacks better than any of the standard hardenable stainless steels and is comparable to Alloy 304 in most media.
If there are potential risks of stress corrosion cracking, higher aging temperatures above 1022°F (550°C), preferably 1094°F (590°C), must be selected. 1022°F (550°C) is the optimum tempering temperature in chloride media, while 1094°F (590°C) is optimum in H2S media.
The alloy is subject to crevice or pitting attack if exposed to stagnant seawater for extended periods. It is corrosion resistant in chemical, petroleum, paper, dairy and food processing industries (equivalent to 304L grade).
Technical Specifications
Chemical Composition
Composition ranges for grade 630 stainless steels:
Element
Min (%)
Max (%)
C
-
0.07
Mn
-
1.00
Si
-
1.00
P
-
0.04
S
-
0.030
Cr
15.00
17.50
Ni
3.00
5.00
Cu
3.00
5.00
Nb+Ta
0.15
0.45
Mechanical Properties
Condition
Tensile Strength (MPa)
Yield Strength 0.2% Proof (MPa)
Elongation (% in 50mm)
Hardness Rockwell C (HR C)
Hardness Brinell (HB)
Solution Treated
1105 typ
1000 typ
15 typ
38 max
363 max
Condition 900
1310 min
1170 min
10 min
40 min
388 min
Condition 1150
930 min
724 min
16 min
28 min
277 min
Physical Properties
Property
Value
Density (kg/m³)
7750
Thermal Expansion 0-100°C (µm/m/°C)
10.8
Thermal Expansion 0-315°C (µm/m/°C)
11.6
Thermal Conductivity at 100°C (W/m.K)
18.4
Thermal Conductivity at 500°C (W/m.K)
22.7
Specific Heat 0-100°C (J/kg.K)
460
Electrical Resistivity (nΩ.m)
800
Alternative Grades Comparison
Alternative Grade
Reasons for Choosing
431
Higher toughness than 17-4PH, better availability in some sizes
Higher corrosion resistance to resist more severe environments, but with much lower strength than 17-4PH
2205
Much better corrosion resistance than 17-4PH, with lower strength (but not as low as 316)
Heat Treatment
Solution treatment (Condition A): Grade 630 stainless steels are heated at 1040°C for 0.5 h, then air-cooled to 30°C. Small sections can be oil quenched.
Hardening: Grade 630 stainless steels are age-hardened at low temperatures to achieve required mechanical properties. During the process, superficial discoloration occurs followed by shrinkage at 0.10% for condition H1150, and 0.05% for condition H900.
Condition
Hardening Temp (°C)
Time (h)
Typical Hardness Rockwell C
Tensile Strength (MPa)
A
Ann
-
36
1100
H900
482
1
44
-
H925
496
4
42
1170-1320
H1025
552
4
38
1070-1220
H1075
580
4
36
1000-1150
H1100
593
4
35
970-1120
H1150
621
4
33
930-1080
Fabrication & Processing
Welding: Grade 630 stainless steels can be welded using all conventional methods and do not require pre-heating. Care should be taken in designing and welding high strength steels to prevent weldment stresses.
Machining: Grade 630 stainless steels can be machined in their solution-treated condition. They have machining rates similar to grade 304 steels.
Applications
Engine components
High strength and boat propeller shafts
Plastic moulding dies
Valves and gears
Product Images
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Total Annual:
>1000000
Employee Number:
>100
Ecer Certification：
Verified Supplier
Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative... Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative...
