TSING SHAN STEEL INDUSTRIAL LIMITED

China,Wuxi ,Jiangsu
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Precipitation-Hardening Steel SUS630 / 17-4PH / Alloy 630 Stainless Steel

China Precipitation-Hardening Steel SUS630 / 17-4PH / Alloy 630 Stainless Steel

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Precipitation-Hardening Steel SUS630 / 17-4PH / Alloy 630 Stainless Steel

MOQ： 50
Price： 3.5-4.86 USD/KG
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Length	6m or custom
Type	Seamless,Welded,round pipe / tube,lost wax casting,seam welded/seamless
Finish	polished,or brush polished,pickled,Hairline Satin
Packaging Details	Standard Seaworthy Package
Outer diameter	6-630mm,6-762mm,6-1088mm,Customized,2mm-200mm
OD Range	6-630mm
Product name	Seamless SUS304 316L Stainless Steel Pipe Coil Rolled,Stainless Steel Tubing,High Quality seamless 304 Stainless steel capillary tube,8mm 10mm Factory Price 316Ti Stainless Steel Seamless Tube,stainless seamless steel pipe EP AP BA MP extruded tube
Material	200 Series/300 Series/400series,Stainless steel,HT40,1.4848 etc.,ss 201/304/316
Supply Ability	500Tons
Welding line type	Seamless,ERW,Spiral Welded
Name	stainless steel tube,Stainless steel 304 pipe,stainless steel telescopic tube for fire blow,Seamless aisi 312 stainless steel pipe/tube ss304 ss pipe
Technique	Hot Rolled
Application	Construction,Decoration,Industry,boiler,etc
Steel grade	300 Series,400 Series,X5CrNi18-20,200 Series,304 304L 316 316L 310S 321
Shape	Round
Standard	GB,JIS,DIN,ASTM,AISI
Surface Treatment	Pickling
Material Standard	ASTM A564, AMS 5643
Color	Silver/bright white,Silver,can custom color of the large tube
Delivery Time	7 work days
Payment Terms	L/C,T/T
Thickness	1-95mm,0.3mm - 3.0mm,0.2-80mm,0.6mm~2500mm,0.25
Surface	BA/2B/NO.1/NO.3/NO.4/8K/HL/2D/1D,polishing,pickling,Annealing,Bright
Grade	201/202/304 /304L/316/316L321/310s/410/420/430/440/439ect,first glass,316L,304L 316 316L 310s 321 321H 347 347H,200/300/400/600
Model Number	17-4PH / 630
Certification	ISO,BV,SGS,ISO9001-2008,Other

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Product Details
Company Details

Product Specification


Length	6m or custom	Type	Seamless,Welded,round pipe / tube,lost wax casting,seam welded/seamless
Finish	polished,or brush polished,pickled,Hairline Satin	Packaging Details	Standard Seaworthy Package
Outer diameter	6-630mm,6-762mm,6-1088mm,Customized,2mm-200mm	OD Range	6-630mm
Product name	Seamless SUS304 316L Stainless Steel Pipe Coil Rolled,Stainless Steel Tubing,High Quality seamless 304 Stainless steel capillary tube,8mm 10mm Factory Price 316Ti Stainless Steel Seamless Tube,stainless seamless steel pipe EP AP BA MP extruded tube	Material	200 Series/300 Series/400series,Stainless steel,HT40,1.4848 etc.,ss 201/304/316
Supply Ability	500Tons	Welding line type	Seamless,ERW,Spiral Welded
Name	stainless steel tube,Stainless steel 304 pipe,stainless steel telescopic tube for fire blow,Seamless aisi 312 stainless steel pipe/tube ss304 ss pipe	Technique	Hot Rolled
Application	Construction,Decoration,Industry,boiler,etc	Steel grade	300 Series,400 Series,X5CrNi18-20,200 Series,304 304L 316 316L 310S 321
Shape	Round	Standard	GB,JIS,DIN,ASTM,AISI
Surface Treatment	Pickling	Material Standard	ASTM A564, AMS 5643
Color	Silver/bright white,Silver,can custom color of the large tube	Delivery Time	7 work days
Payment Terms	L/C,T/T	Thickness	1-95mm,0.3mm - 3.0mm,0.2-80mm,0.6mm~2500mm,0.25
Surface	BA/2B/NO.1/NO.3/NO.4/8K/HL/2D/1D,polishing,pickling,Annealing,Bright	Grade	201/202/304 /304L/316/316L321/310s/410/420/430/440/439ect,first glass,316L,304L 316 316L 310s 321 321H 347 347H,200/300/400/600
Model Number	17-4PH / 630	Certification	ISO,BV,SGS,ISO9001-2008,Other
High Light	Precipitation-Hardening Stainless Steel Seamless Pipe ，Hot Rolled 17-4PH Stainless Steel Tube ，Corrosion Resistant Alloy 630 Hollow Tube

Precipitation-Hardening Steel SUS630 / 17-4PH / Alloy 630 Stainless Steel Seamless Pipe Cold Drawn

Hot Rolled SUS630 / 17-4PH / Alloy 630 Stainless Steel Seamless Pipe BA AP SS Hollow Tube

Products Specification

Products Name	Stainless Steel Seamless Pipe
Grade	304 304L 309S 310S 314 316L 316Ti 321 329 347H 410 2205 2507 904L 254SMO 17-4PH and equal grade in GB JIS EN DIN Standard
Standards	ASTM A213M-94b ASTM A249M-94a ASTM A269-94a ASTM A312M-94b, etc. DIN 17456-85 DIN 17458-85 DIN 17459-92, etc. JIS G3446-1994 JIS G3448-1997 JIS G3459-1997 JIS G3463-1994, etc. GB13296-1991 GB14975-2002 GB14976-2002, etc.
Size	ND5 - DN400
Length	6m length or cutting any length as request
Applications	fluid and gas transport, structure, boiler, heat exchanger, super heater

630 Stainless Steel Seamless Tubing - Product Information

(UNS S17400 / 17-4PH Precipitation-Hardening Stainless Steel)

Product Description

630 Seamless Tubing is a martensitic precipitation-hardening stainless steel offering exceptional strength, corrosion resistance, and machinability. The "630" designation (per AMS/UNS) is synonymous with 17-4PH. Supplied in solution-annealed Condition A, it achieves high mechanical properties via low-temperature aging heat treatment (e.g., H900, H1150). Ideal for high-stress, corrosive, and moderate-temperature applications where standard austenitic steels (304/316) lack sufficient strength.

Key Specifications & Standards

Category	Details
Material Standard	ASTM A564 (Age-Hardening Stainless Steel), AMS 5643, ASTM A511 (Seamless Mechanical Tubing)
UNS Designation	S17400
EN/DIN Equivalent	1.4542 (X5CrNiCuNb16-4)
Common Tempers	Condition A (Solution Annealed), Aged: H900, H1025, H1100, H1150, H1150M

Chemical Composition (% Weight, Typical)

Element	Cr	Ni	Cu	Nb+Ta	C (max)	Mn (max)	Si (max)	Fe
Content	15.0-17.5	3.0-5.0	3.0-5.0	0.15-0.45	0.07	1.00	1.00	Balance

Mechanical Properties (Aged Conditions)

Aging Condition	Tensile Strength (min)	Yield Strength (min)	Elongation % (min)	Hardness (HRC)
H900	190 ksi (1310 MPa)	170 ksi (1170 MPa)	10	40-48
H1150	135 ksi (930 MPa)	105 ksi (725 MPa)	12	30-38
H1150M	110 ksi (760 MPa)	85 ksi (585 MPa)	15	28-36

Physical Properties

Density: 0.282 lb/in³ (7.80 g/cm³)
Melting Point: 2560-2625°F (1400-1440°C)
Magnetic Response: Yes (martensitic structure)
Thermal Conductivity: 14.4 BTU·ft/hr·ft²·°F (24.9 W/m·K)
Corrosion Resistance: Comparable to 304 stainless; resistant to acids, freshwater, steam, and petroleum.

Tubing Specifications

Parameter	Details
Type	Seamless (SMLS), Cold-Drawn or Hot-Finished
OD Range	0.125" - 8" (3.18 mm - 203 mm)
Wall Thickness	0.020" - 1.5" (0.51 mm - 38.1 mm)
Length	Standard: 12-24 ft (3.6-7.3 m); Custom cuts available
Tolerances	ASTM A511, ASTM A564, or custom precision (e.g., ±0.001" on OD)
Surface Finish	Annealed/pickled, polished (#4, #8, mirror), sandblasted, or as-requested

Packaging

Standard: Bundled with plastic/corrugated wrapping, wood-crated or palletized.
Protection: PVC end caps, VCI (vapor corrosion inhibitor) paper for long-term storage.
Labeling: Heat number, size, temper, quantity, and compliance marks (RoHS/REACH).

Value-Added Services

Cutting: Precision saw, abrasive waterjet, or laser cutting.
Heat Treatment: Custom aging (H900 to H1150M) for target strength/toughness.
Machining: CNC turning, milling, threading, grooving.
Surface Treatment: Passivation, electropolishing, bead blasting.
Testing: Eddy current (ECT), hydrostatic, ultrasonic (UT), PMI (positive material identification).
Welding: TIG/GTAW with ER630 filler wire.

Applications

630 seamless tubing is critical in high-performance sectors:

Aerospace: Landing gear, actuator cylinders, hydraulic lines.
Oil & Gas: Downhole tools, valve stems, chemical injection tubing.
Medical: Surgical instruments, implantable device components (biocompatible grades available).
Power Generation: Turbine blades, heat exchanger tubes.
Industrial: Hydraulic/pneumatic cylinders, bearings, nuclear waste containers.
Marine: Propeller shafts, subsea fittings.

Compliance & Certification

Mill Test Reports (MTRs) per EN 10204 3.1/3.2.
Compliance: NACE MR0175, ASTM A262, AMS 5643.
Certifications: ISO 9001, AS9100, PED 2014/68/EU (upon request).

Product Images

FAQ

Q1: What's your terms of payment?
A: 30%T/T as the upfront deposit, 70% before delivery, We will show you the photos and package before you pay the balance.
Q2: What's the terms of delivery?
A: EXW, FOB, CFR, CIF
Q3: What's the terms of packing?
A: Generally,we pack our goods in bundles or coils with rods or belts, we could also pack the goods as the customers' requirement.
Q4: What's your delivery time?
A: For stocks, we could transport the goods to loading port within 7 work days after we received the deposit.For productionperiod,it usually takes about 15 days to 30 days after we received the deposit.
Q5: Could you produce according to the samples?
A: Yes, we can customer-made by your samples or technique drawings, we can build the mold and fixtures.
Q6: Could you provide the compliment samples?
A: Yes, we could provide the free samples on condition that it is available in stocks, however,the transportation fee is borne by buyer.
Q7: How could you guarantee your products quality?
A: Each piece of products is manufactured by certified workshops, inspected by us piece by piece according to national QA/QC standard. We also could issue the warranty to customer to guarantee the quality.
Q8:What are the advantages of your company?
A:(1): Prime quality and reasonable price.
(2): Wide excellent experiences with after-sale service.
(3): Every process will be checked by responsible QC which insures every product's quality.
(4): Professional packing teams which keep every packing safely.
(5): Trial order can be done in one week.
(6): Samples can be provided as your requirements.

Company Details

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Business Type:

Manufacturer 
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Year Established:

2012 
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Total Annual:

500,000,000-800,000,000
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Employee Number:

100~200 
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Ecer Certification：

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Company Overview ： The company has an indoor warehouse of 5000 square meters and an open warehouse of 4000 square meters, which can fully meet the temporary turnover and phased storage of customers' steel pipe reservation. The subordinate processing plant has 6 sets of medium frequency h... Company Overview ： The company has an indoor warehouse of 5000 square meters and an open warehouse of 4000 square meters, which can fully meet the temporary turnover and phased storage of customers' steel pipe reservation. The subordinate processing plant has 6 sets of medium frequency h...

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TSING SHAN STEEL INDUSTRIAL LIMITED
NO.288,Youyi Road Xi Shan Dristrict , Wuxi, Jiangsu, China
https://www.316lsheet.com/

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