Top quality 630 high precipitation stainless steel plate, 630 stainless steel sheet, 630 stainless steel seamless pipe, 630 stainless steel round bar 17-4PH, 1.4542, X5CRNICUNB17-4-4, AISI 630, UNS S17400 ACCORDING TO EN 10088-1, ASTM A564.
This grade has a good weldability and doesn’t normally need preheating, but welding design should be well evaluated in order to avoid situations prone to generate stress. In short, small sections could be welded in the solution treatment condition followed by an aging; large or heavy sections require a high temperature aging or overaging obviously followed by a new solution treatment (cond. A) and an aging.
This grade has the same general resistance corrosion as 304 but better than the group of standard martensitic 400 series. However, solution treatment (cond. A) without aging should be avoided. For maximum resistance to Chloride stress corrosion cracking, it should be aged at a higher temperature, not less than 550-580°C. In Sulfide aggressive environments, age at 620° C or overage. The same choice should be done in the case of situations or environments prone to cause H-embrittlement. It should also be noted that for this grade, as for every kind of stainless steel, surfaces should be free of contaminants and scale, and passivated for optimum resistance corrosion.
This grade has a limited cold deforming capacity in the annealed condition (cond.A) due to untempered Martensite. More severe cold working requires aging at the highest temperature or overaging. For restoring or increasing mechanical properties, such as Tensile Rm, a new solution treatment (cond.A) followed by a suitable aging temperature should be carried out.
Ingots or large forgings require a suitable preheating in order to avoid thermal cracking. Avoid overheating and improper cooling. Large forging bars should be equalized at 1030 -1040°C in the heating furnace prior to cooling. Both small or large forgings, rolled rings or bars must be cooled under 30°C after solution treatment (cond. A) in order to complete the transformation of martensite, obtaining both a good structure and mechanical properties after aging. It is useful to point out that a certain amount of Ferrite could be in the V174 structure.
Finish: polished, bright, HL, mill finish
| Min. % | Max % | |
| C | 0.07 | |
| Si | 1.0 | |
| Mn | 1.0 | |
| Ni | 3.0 | 5.0 |
| Cr | 15.0 | 17.5 |
| Cu | 3.0 | 5.0 |
| Nb | 0.15 | 0.45 |
| P | 0.04 | |
| S | 0.03 |
(S-A solution annealed, S-A-A solution annealed-aged, S-A-D solution annealed double aged)
| Condition | Subtype | RM(N/MM²) | HBW | RP0.2% (N/MM²) | E4D(%) |
| S-A | AT | 1200 max | 360 max | - | - |
| S-A-A | H900 | 1310 min | 380 min | 1170 min | 10 min |
| S-A-A | H925 | 1170 min | 375 min | 1070 min | 10 min |
| S-A-A | H1025(P1070) | 1070 min | 331 min | 1000 min | 12 min |
| S-A-A | H1075 | 1000 min | 311 min | 860 min | 13 min |
| S-A-A | H1100(P960) | 965 min | 302 min | 795 min | 14 min |
| S-A-A | H1150(P930) | 930 min | 277 min | 725 min | 16 min |
| S-A-D | H1150M(P800) | 795 min | 255 mim | 520 min | 18 min |
| S-A-D | H1150D | 860 min | 255-311 | 725 min | 16 min |
(S-A solution annealed, S-A-A solution annealed-aged, S-A-D solution annealed double aged)
| Condition | Min Temp.°C | Max Temp. °C | Cooling | |
| S-A | AT | 1025 | 1050 | Air |
| S-A-A | H900 | 480 | - | Air |
| S-A-A | H925 | 495 | - | Air |
| S-A-A | H1025(P1070) | 550 | - | Air |
| S-A-A | H1075 | 580 | - | Air |
| S-A-A | H1100(P960) | 595 | - | Air |
| S-A-A | H1150(P930) | 620 | - | Air |
| S-A-D | H1150M(P800) | 760+620 | - | Air |
| S-A-D | H1150D | 620+620 | - | Air |
| 630 stainless steel plate sizes and specifications | |
| Grade | 630 |
| Cold rolled stainless steel plate | Thickness: 0.3mm- 16.0mm, Width: 1000mm - 2000mm, Length: as requirements, Surface: 2B/BA/SB/8K/HL/1D/2D etc |
| Hot rolled stainless steel sheet | Thickness: 3.0mm - 300mm, Width: 1000mm - 3000mm Length: as requirements, Surface: No.1/pickling |
| Standard | ASTM A240/A480, ASTM B688, ASTM B463/SB463, ASTM B168/SB168, ASTM B443/SB443/B424/SB424B625/SB625 B575/SB575, JIS G4303, BS 1449, DN17441, G4305 |
| Stainless steel plate | Thickness: 8.0mm - 300mm, Width: 1000mm - 3000mm Length: as requirements, Surface: No.1/pickling |
| 630 stainless steel strip sizes and specifications | |
| Grade | 630 |
| Cold rolled stainless steel strip | Thickness: 0.3mm- 3.0mm, Width: 5mm - 900mm, Surface: 2B/BA/SB/8K/HL/1D/2D etc |
| Hot rolled stainless steel strip | Thickness: 3.0mm - 16mm, Width: 10mm - 900mm Surface: No.1/pickling |
| Stainless steel foil | Thickness: 0.02mm- 0.2mm, Width: Less than 600mm, Surface: 2B |
| Standard | ASTM A240/A480, ASTM B688, ASTM B463/SB463, ASTM B168/SB168, ASTM B443/SB443/B424/SB424B625/SB625 B575/SB575, JIS G4303, BS 1449, DN17441, G4305 |
| 630 stainless steel coil sizes and specifications | |
| Grade | 630 |
| Cold rolled stainless steel coil | Thickness: 0.3mm- 3.0mm, Width: 1000mm - 2000mm, Surface: 2B/BA/SB/8K/HL/1D/2D etc |
| Hot rolled stainless steel coil | Thickness: 3.0mm - 16mm, Width: 1000mm - 2000mm Surface: No.1/pickling |
| Standard | ASTM A240/A480, ASTM B688, ASTM B463/SB463, ASTM B168/SB168, ASTM B443/SB443/B424/SB424B625/SB625 B575/SB575, JIS G4303, BS 1449, DN17441, G4305 |
| 630 stainless steel pipe sizes and specifications | |
| Grade | 630 |
| Stainless steel seamless pipe | Outside diameter: 4.0 - 1219mm, Thickness: 0.5 -100mm, Length: 24000mm |
| Stainless steel welded pipe | Outside diameter: 6.0 - 2800mm, Thickness: 0.3 -45mm, Length: 18000mm |
| Stainless steel capillary pipe | Outside diameter: 0.4 - 16.0mm, Thickness: 0.1 -2.0mm, Length: 18000mm |
| Stainless steel welded sanitary pipe | Outside diameter:8.0- 850mm, Thickness: 1.0 -6.0mm |
| Stainless steel seamless sanitary pipe | Outside diameter: 6.0- 219mm, Thickness: 1.0 -6.0mm |
| Stainless steel square pipe | Side Length: 4*4 - 300*300mm, Thickness: 0.25 - 8.0mm, Length: 18000mm |
| Stainless steel rectangular pipe | Side Length: 4*6 - 200*400mm, Thickness: 0.25 - 8.0mm, Length: 18000mm |
| Stainless steel coil pipe | Outside diameter: 0.4 - 16mm, Thickness: 0.1 - 2.11mm |
| Standard | American Standard: ASTM A312, ASME SA269, ASTM A269, ASME SA213, ASTM A213 ASTM A511 ASTM A789, ASTM A790, ASTM A376, ASME SA335, B161, SB163, SB338, SB667/668 Germany Standard: DIN2462.1-1981, DIN17456-85, DIN17458-85· European Standard: EN10216-5, EN10216-2 Japanese Standard: JIS G3463-2006, JISG3459-2012 Russian Standard: GOST 9941-81 |
| 630 stainless steel profile sizes and specifications | |
| Grade | 630 |
| Specification | EN, DIN, JIS, ASTM, BS, ASME, AISI, ISO |
| Standard | ASTM A276/ASME SA276, ASTM A479/ASME SA479 & ASTM A164/ASME SA164 . |
| Stainless steel round Bar | Diameter: 2mm - 600mm |
| Stainless steel bright Bar | Diameter: 2mm - 600mm |
| Stainless steel hex Bar | Dimension: 6mm - 80mm |
| Stainless steel square bar | Dimension: 3.0 - 180mm |
| Stainless steel flat bar | Thickness: 0.5mm - 200mm, Width: 1.5mm - 250 mm |
| Stainless steel angle bar | as requirements |
| Length | Normally 6m, or produce as requirements |
| Surface | Black, Bright. Peeled and Polished, Solution annealed. |
| Delivery condition | cold drawn, hot rolled, forged, grinding, centerless grinding |
| Tolerance | H8, H9, H10, H11, H12, H13,K9, K10, K11, K12 or as per clients’ requirements |
