-
Industries OverviewThe company's products are primarily used in industrial equipment sectors such as nuclear power, petroleum, petrochemicals, chemical engineering, power generation, automotive manufacturing, shipbuilding, fertilizer production, pharmaceuticals, papermaking, sugar refining, and machinery manufacturing. -
Products & SolutionsOur Products: Ferrous metal ore raw materials (nickel ore, ferronickel, ferrochrome, ferromanganese, ferrosilicon, etc.), seamless pipes, welded pipes, medium-thick plates, plate coils, bars, wire rods, wire coils, pipe fittings, flanges, castings, etc. -
CommunityThe company has established an excellent reputation within the industry through its strong credibility, comprehensive services, and ample resources. -
Process VisualizationThe company's products are primarily used in industrial equipment sectors such as nuclear power, petroleum, petrochemicals, chemical engineering, power generation, automotive, shipbuilding, fertilizer production, pharmaceuticals, papermaking, sugar refining, and machinery manufacturing. -
About UsTsisco Industrial Ltd. was established in 2010. Originating from the Tsingshan ecosystem’s Shanghai platform, the company now operates independently and focuses on global supply-chain integration, distribution, and import/export of steel and alloy materials. We achieved ISO 9001 certification from TÜV Rheinland in 2012, and ISO 9001, ISO 14001 and ISO 45001 certifications from LRQA in 2022. These accreditations underpin continuous improvement and stable performance in quality, environment, and occupational health & safety.
-
Products & Solutions
Stainless Wire Rods
Stainless Wire Rods
Ho-rolled Stainless Wire Rod｜Global Sourcing for Engineering & Procurement
1) Definition & Supply Scope
• Definition: Hot-rolled stainless wire rod in coils, supplied as HR (black) or HRAP/SAP (solution annealed and pickled), with optional finishing, shot-blasting, and straightening.
• Uses: Feedstock for cold-drawn wire, spring wire, welding wire, wire rope strands, mesh wire, cold-heading fasteners, and precision components; can be directly formed or machined after re-heat treatment.
• Families: Austenitic, ferritic, martensitic, duplex and super duplex, precipitation-hardening, 6Mo and high-corrosion-resistance austenitics.
• Typical grades (examples):
— Austenitic: 304/304L, 302HQ, 305, 316/316L, 321, 347, 310S, 904L, 254SMo.
— Ferritic: 409L, 430, 444.
— Martensitic: 410, 420, 431.
— Duplex/SDSS: 2205 (S32205), 2507 (S32750/S32760).
— Precipitation-hardening: 17-4PH, 17-7PH.
• For welding wire feedstock: lock chemistry to AWS A5.9 or ISO 14343 target grades (e.g., ER308L, ER316L, ER309L, ER347, ER2209).
2) Standards & Compliance (specify editions in RFQ/PO)
• General requirements: ASTM A555/A555M, EN 10088-3, EN 10204 3.1/3.2, ISO 15510.
• China GB: GB/T 4356 (hot-rolled stainless wire rod), GB/T 2101 (general delivery), with downstream GB/T 4240 (stainless steel wire) and GB/T 1220 (stainless bars) as references.
• Downstream/use-specific: ASTM A580 (general stainless wire), ASTM A313 (stainless spring wire), EN 10270-3 (stainless spring steel wire), EN 10263-5 (stainless for cold heading/extrusion), JIS G4314 (stainless spring wire), AWS A5.9 or ISO 14343 (welding wire chemistry).
• Critical note: Use ASTM A555 or EN 10088-3 or GB/T 4356 for the rod itself. ASTM A580 and ASTM A313 are finished-wire standards and must not replace rod specifications.
3) Quick Mapping — “Service → Material → Standard → Size”
• Cold-heading fasteners:
— Material: 302HQ, 304L-CHQ, 305, 316L-CHQ.
— Standard: EN 10263-5; purity and hardness per project; use ISO 15510 for chemistry cross-reference.
— Size: Ø5.5–16 mm typical; request precision tolerance and low inclusion ratings.
• Springs and clamps:
— Material: 301, 302, 304, 316, 17-7PH.
— Standard: Rod to ASTM A555 or EN 10088-3; finished wire to ASTM A313 or EN 10270-3.
— Size: Ø5.5–14 mm; prefer HRAP/SAP for stable drawing.
• Welding wire feedstock (GTAW/GMAW/SAW):
— Chemistry: To AWS A5.9 or ISO 14343 windows (e.g., ER308L, ER316L, ER309L, ER347, ER2209).
— Standard: Rod to ASTM A555 or EN 10088-3; lock low S/P/Cu and δ-ferrite control.
— Size: Ø5.5–8.0 mm; HRAP/SAP preferred.
• Wire rope & meshes:
— Material: 304, 316; for marine/high-chloride use 316L, 2205, or 2507.
— Standard: Rod to ASTM A555 or EN 10088-3; specify μr limits if non-magnetic behavior is required.
— Size: Ø5.5–12 mm; contract a surface defect-depth limit.
• High-chloride and seawater:
— Material: 2205, 2507, 904L, 254SMo.
— Standard: EN 10088-3; perform ASTM A923 and ASTM G48 tests for duplex/SDSS.
— Size: Ø6–20 mm; target ferrite 35–65%.
• Heat-resistance/oxidation:
— Material: 310S, 347.
— Standard: EN 10088-3; add ASTM A262 IGC for austenitics when required.
— Size: Ø6–14 mm.
4) Dimensions & Tolerances (default ranges, tighten per project)
• Diameter: Ø5.5–32 mm, up to Ø40 mm project-specific.
• Diameter tolerance: per EN 10088-3 or mill tables; precision grades available.
• Ovality & straightness: per mill or contract; tighten for CHQ and high-speed drawing.
• Coil weight: ~1.0–3.0 t, typically 1.5–2.2 t.
• Coil ID/OD: ~600–850 mm ID, ~1100–1400 mm OD.
• Surface condition:
— HR for subsequent pickling or peeling.
— HRAP/SAP for direct cold working and welding-wire feedstock.
— Surface defect depth limit recommended, e.g., ≤0.20 mm or ≤0.5% of diameter (whichever is stricter); optional in-line or off-line eddy-current testing.
• Duplex rods: deliver in solution-annealed balance with ferrite 35–65%; verify to ASTM A923 and ASTM G48.
5) Manufacturing & QA (ITP backbone)
• Make route: EAF/BOF → AOD/VOD → CC or ingot → reheat → hot-rolling → optional solution + pickling.
• Chemistry & cleanliness: OES/ICP; inclusions per ASTM E45; for welding wire feedstock control S, P, Cu, Nb, Ti, N.
• Metallography & phase: solution-annealed structure; ferrite quantification for duplex; δ-phase window for PH grades.
• Mechanical & hardness: tensile/elongation/hardness (HB/HV); contract CHQ hardness ceiling.
• Corrosion & passivation: ASTM A967; ASTM A262 for austenitic IGC; ASTM A923 & ASTM G48 for duplex.
• Surface & NDT: 100% visual; add eddy-current sampling; sound, crack-free ends.
• Documentation: EN 10204 3.1/3.2; full heat/lot traceability; PED/AD2000 statements where required.
• Non-magnetic option: specify μr ≤ 1.05 or a project-specific threshold.
6) Supply & Packing
• Binding & lifting: multi-strap with edge protection; reinforced lifting beams for full coils.
• Protection: dry film/light oil; HRAP/SAP coils wrapped with VCI paper and film; avoid carbon-steel contact and cross-contamination.
• Marking: heat/lot, grade, size, tolerance class, coil ID, net/gross weight, supply condition.
• Logistics: containerized or break-bulk with bracing; moisture control and stacking limits.
7) RFQ/PO Checklist (copy-ready)
1. Intended use: CHQ, welding wire feedstock, spring, rope, mesh, or others.
2. Standards: ASTM A555 or EN 10088-3 or GB/T 4356; add EN 10263-5 for CHQ; add AWS A5.9 or ISO 14343 target chemistry for welding wire feedstock.
3. Grade & chemistry: e.g., 304L-CHQ, 316L-CHQ, 302HQ, 2205; specify ER308L/ER316L chemistry when applicable.
4. Size & coil parameters: diameter, tolerance grade, coil weight, coil ID/OD.
5. Condition & surface: HR or HRAP or SAP; surface defect-depth limit and NDT plan.
6. Quality: inclusion rating, hardness ceiling, ferrite %, end quality, passivation/corrosion tests.
7. Special limits: μr, low-Cu/low-δ-ferrite (for welding wire feedstock), low S/P and cleanliness.
8. Documentation: EN 10204 3.1/3.2, chemistry/mechanical, metallography/phase balance, NDT reports, third-party inspection list.
8) Risk List (common pitfalls)
• Using ASTM A580 or ASTM A313 as the rod standard.
• Not distinguishing CHQ vs. general-purpose rod (cleanliness/hardness).
• Missing ASTM A923/G48 and ferrite control for duplex/SDSS.
• Using 303 free-cutting grade for CHQ (cracking risk) instead of 302HQ/304Cu/305/316L-CHQ.
• No chemistry window/low-Cu/low-S/δ-ferrite control for welding wire feedstock.
• No μr limit when non-magnetic is required.
• No surface defect depth limit/NDT while ordering HR condition.
• Improper stacking/handling causing coil-to-coil abrasion or dents.
9) Representative Spec Lines (ready to paste)
• CHQ: Wire Rod, ASTM A555, 304L-CHQ, HRAP, Ø6.5 mm, Precision Tolerance per EN 10088-3, Max Hardness 215 HB, Inclusion per ASTM E45 (project class), Coil 2.0 t, ID 760 mm, OD 1250 mm, MTC EN 10204 3.1.
• Welding wire feedstock: Wire Rod, EN 10088-3, Chemistry to AWS A5.9 ER308L, SAP, Ø6.0 mm, Low S/P/Cu, δ-Ferrite controlled, Surface defect depth ≤0.20 mm, 100% Visual + ET sampling, MTC 3.1 + A967 record.
• Duplex corrosion-resistant: Wire Rod, EN 10088-3, UNS S32205 (2205), HRAP, Ø8.0 mm, Ferrite 35–65%, ASTM A923 & G48 qualified, Coil 1.8 t, MTC 3.1 with phase balance.
Stainless Steel Hot-Rolled Wire Rod ｜Technical Specifications
0) Key Corrections and Boundaries
1. Standards positioning: ASTM A555/A555M and EN 10088-3 govern stainless wire/wire-rod delivery; GB/T 4356 is the CN standard for hot-rolled stainless wire rod. ASTM A580/A313 / EN 10270-3 are finished wire standards and must not be used as the primary rod purchase basis; cite them only as downstream requirements in the TA.
2. Material families: austenitic, ferritic, martensitic, duplex/super-duplex, PH, and high-corrosion-resistant austenitics (6Mo/904L) are all feasible for wire rod. Duplex must be supplied solution-annealed with phase balance (typical ferrite 35–65%) and, when requested, tested to ASTM A923 and ASTM G48.
3. Welding wire feedstock: when the end-use is filler metal, the PO shall also lock AWS A5.9 / ISO 14343 target chemistries to secure weld FN/IGC behavior.
4. Common pitfalls: using A580/A313 as rod purchase standards; using 303 for cold heading; omitting surface defect depth limits/NDE on HR supply; missing μr (non-magnetic) targets; no Ferrite%/A923/G48 control for duplex.
1) Product Definition and Scope
• Form: stainless hot-rolled wire rod in coils; delivery states HR (as-rolled) or HRAP/SAP (solution-annealed + pickled/passivated); optional straightening/shot-blasting/finishing.
• Uses: upstream feed for cold-drawn wire, spring wire, welding wire, wire rope strands, mesh, braiding, cold-heading/cold-extrusion fasteners, and precision components; may also be heat-treated and formed directly.
• Grades: austenitic (incl. 302HQ/304L-CHQ/305/316L-CHQ, 310S, 321/347, 904L, 6Mo/254SMo), ferritic (409L/430/444), martensitic (410/420/431), duplex/super-duplex (2205/2507), PH (17-4PH/17-7PH).
2) Standards and Codes Matrix
• General for rod/wire: ASTM A555/A555M, EN 10088-3, GB/T 4356, ISO 15510, EN 10204 3.1/3.2.
• Downstream/use-specific (quote in TA): EN 10263-5 (stainless rod/wire for cold heading/extrusion); ASTM A313 / EN 10270-3 (spring wire); ASTM A580 (general wire); AWS A5.9 / ISO 14343 (filler metals).
• QA references: ASTM E45 (inclusions), DIN 50602 (K-value, optional), ASTM E1245/E562 (cleanliness/point counting); ASTM A967 / A380 (pickling/passivation); ASTM A923 / G48 (duplex).
• JIS note: spring wire may follow JIS G4314; for JIS wire-rod purchase, confirm the current JIS issue and supplier capability before writing it into the TA.
3) Typical Grades and Use Guidance (UNS/EN references)
• Austenitic: 304/304L (S30400/1.4301; S30403/1.4307), 316/316L (S31600/1.4401; S31603/1.4404), 301/302/305/302HQ (S30430), 321 (S32100/1.4541), 347 (S34700/1.4550), 310S (S31008/1.4845), 904L (N08904/1.4539), 254SMo (S31254/1.4547).
• Ferritic: 409L (1.4512) / 430 (1.4016) / 444 (S44400/1.4521).
• Martensitic: 410 (1.4006) / 420 (1.4021/1.4028) / 431 (1.4057).
• Duplex/Super-duplex: 2205 (S32205/1.4462) / 2507 (S32750/S32760/1.4410).
• PH: 17-4PH (S17400/1.4542, deliver Condition A), 17-7PH (S17700/1.4568).
• Welding wire feedstock: ER308L/316L/309L/347/2209 etc. per AWS A5.9/ISO 14343, weld FN checked via WRC-1992 (Cr_eq/Ni_eq).
4) Dimensions, Tolerances and Coil Parameters (ordering suggestions)
• Diameter: Ø5.5–Ø32 mm (project-specific up to Ø40 mm+, subject to mill confirmation).
• Diameter tolerance: per EN 10088-3 or mill schedule; tight tolerances are recommended for CHQ/high-speed drawing.
• Ovality/straightness: quantify in the PO; tighten for CHQ/high-speed drawing.
• Surface defect depth: specify ≤0.5%·D or ≤0.20 mm (whichever stricter); no laps/folds/cracks; separate HRAP/SAP appearance class.
• Coil weight/size: 1.0–3.0 t typical (1.5–2.2 t common); ID 600–850 mm / OD 1100–1400 mm.
• End quality: no pipe/necking/cracks; tip machining/grinding if required.
5) Manufacturing Flow and Delivery Conditions
1. Melting/refining: EAF/BOF → AOD/VOD; optional Ca-treatment; control C, S, P and residuals (Cu, Pb). For welding feedstock, aim low S/P/Cu.
2. CC/bloom → reheating → hot-rolling to coil with controlled temperature/reduction/cooling for target grain size and inclusion morphology.
3. Heat-treat/surface: HR (as-rolled, scaled) for later pickling/peeling/drawing; HRAP/SAP (solution-annealed + pickled/passivated) for direct cold work/welding-wire feed.
4. NDE: online/offline eddy current / magnetic flux leakage (mandatory for CHQ in many OEMs).
5. Finishing: straightening/shot-blasting/finishing as needed; record Ferrite% for duplex lots.
6) Service–Material–Standard Quick Mapping
• Cold heading/extrusion fasteners → 302HQ/304L-CHQ/305/316L-CHQ; cite EN 10263-5, ASTM E45 (or equivalent) for cleanliness, ≤HB 215 (typical cap), surface depth limit, low S/P, tuned Cu/N, HRAP/SAP delivery.
• Springs/clips/clamps → 301/302/304/316, 17-7PH rod; finished wire to ASTM A313 / EN 10270-3; control work-hardening curve, N content, cleanliness.
• Welding wire feedstock → ER308L/316L/309L/347/2209 chemistries per AWS A5.9 / ISO 14343, low Cu/S; design weld FN (WRC-1992); HRAP/SAP delivery.
• Wire rope/mesh/braiding → 304/316; for marine/high Cl⁻, prefer 316L/2205/2507.
• High-chloride/oxidizing media → 2205/2507, 904L, 6Mo; duplex tested to A923/G48.
• Heat-resisting → 310S/347; address scale control/IGC stability.
7) QA/QC and Inspection (ITP backbone)
• Chemistry/cleanliness: OES/ICP; inclusions per ASTM E45 (or mill equivalent). For CHQ/welding feedstock, tighten S/P/Cu/Nb/Ti/N.
• Microstructure/phase: solution-annealed metallography; Ferrite% (duplex) by Ferritscope or metallography, target 35–65% (40–60% if specified).
• Mechanical/hardness: tensile/elongation/hardness (HRB/HV/HB); CHQ rods with specified max hardness.
• Surface/size: 100% visual + sampled eddy current/MFL; end quality control.
• Corrosion/passivation (on request): ASTM A967/A380; ASTM A262 for austenitic IGC; A923/G48 for duplex.
• Magnetic permeability: μr ≤ 1.05 if non-magnetic is required.
• Docs: EN 10204 3.1/3.2 incl. HT curves, chem/mech, metallography/phase balance, NDT, full traceability.
8) Supply, Packing and Protection
• Strapping: multi-point steel bands + edge protection; reinforced lifting.
• Protection: dry film/light oil; HRAP/SAP coils with moisture-barrier paper + wrap; no hard contact with carbon-steel coils.
• Marking: grade/size/state, heat/lot/coil IDs, net/gross, tolerance class, standards.
• Logistics: containerized or bulk with bracing; anti-slip/anti-pressure stacking; in-warehouse moisture control.
9) RFQ/BOM Checklist (ready to reuse)
1. End-use (CHQ/welding feed/spring/rope/mesh…).
2. Standards combo (e.g., ASTM A555 + EN 10088-3; add EN 10263-5 for CHQ; reference AWS A5.9/ISO 14343 for welding feed).
3. Grade/chemistry (e.g., 302HQ/304L-CHQ/316L-CHQ/2205; welding feed ER308L/ER316L chemistry windows).
4. Dimensions/coil (dia/tolerance class, coil weight, ID/OD).
5. Delivery/surface (HR / HRAP / SAP; defect depth limit; NDE plan).
6. Quality (inclusion rating, Ferrite% for duplex, hardness cap, end quality, NDT scope).
7. Specials (μr non-magnetic, low Cu/δ-ferrite for welding feed, low S/P, environmental/cleanliness).
8. Docs/TPI (EN 10204 3.1/3.2, chem/mech, metallography/phase balance, NDT; TPI list).
10) Construction and Risk Controls
• Do not buy rod to A580/A313—use A555/EN 10088-3/GB/T 4356 as the basis.
• Distinguish CHQ vs general rod—tighten cleanliness, hardness, surface, NDE.
• For duplex, control Ferrite%/A923/G48—otherwise cracking/pitting risks rise.
• Never use 303 for cold heading—use 302HQ/304Cu/305/316L-CHQ.
• For welding feed, lock AWS/ISO chemistry windows and low Cu/S, otherwise weld FN/corrosion will drift.
• Specify μr if non-magnetic is required.
• For HR delivery, quantify defect depth and NDE; otherwise drawing breaks will occur.
• Protect coils from abrasion/indentation in transit and storage.
11) Example Spec Lines
• S-1: 304L-CHQ cold-heading rod
“Wire Rod, 304L-CHQ, Ø 8.0 mm, HRAP, per ASTM A555 + EN 10088-3 + EN 10263-5; chem per ISO 15510 (low S/P, Cu/N tuned); HB ≤ 215; surface defect ≤ 0.5%·D or 0.20 mm; NDT: eddy current (batch); Docs: EN 10204 3.1.”
• S-2: ER316L welding-wire feedstock
“Wire Rod, ER316L target chemistry per AWS A5.9 / ISO 14343, Ø 5.5 mm, HRAP/SAP; low Cu/S; weld FN per WRC-1992; surface defect ≤ 0.5%·D or 0.15 mm; μr ≤ 1.05 if specified; Docs: 3.1 incl. HT curve.”
• S-3: Duplex 2205 marine grade
“Wire Rod, UNS S32205 / 1.4462, Ø 10.0 mm, HRAP; Ferrite 40–60% by Ferritscope; ASTM A923 (A/B/C) & G48A sampling; surface defect ≤ 0.5%·D or 0.20 mm; Docs: EN 10204 3.1/3.2.”
• S-4: 17-7PH for springs
“Wire Rod, 17-7PH, Ø 7.0 mm, HRAP, Condition A; downstream to ASTM A313 / EN 10270-3; δ-phase control declared; Docs: 3.1.”
12) Major Global Producers of Stainless Wire Rod (alphabetical by region; verify current capability/approvals)
• Europe: Acerinox – Roldan (ES), Aperam Long Products (FR/LU/BE), Cogne Acciai Speciali (IT), Fagersta Stainless AB (SE), Ugitech (FR, Swiss Steel Group), Valbruna (IT).
• Japan: NSSC, Daido Steel, Sanyo Special Steel, Kobe Steel (specialty long products).
• Korea: POSCO Stainless (plant capability by product line).
• Mainland China: TISCO (Baowu), Baowu Stainless (incl. Desheng), Tsingshan Group / Yongxing Special Stainless, etc.
• Taiwan/Region: Walsin Lihwa.
• India: Viraj Profiles, Mukand Ltd., Jindal Stainless (confirm long-product capability by site).
Note: Availability for CHQ/welding feed/duplex/super-duplex/PH varies by mill. In RFQs, always request the current product list, approvals and recent reference projects, and run qualification samples.
Tags:
