Excerpt:
For architectural handrails, walkways and platform railings. Vertical infill supports clear definition of openings and appearance. Project rules determine height, loading, anchors and anti-climb requirements.
QIDA METAL · PRODUCT PROCUREMENT GUIDE
304 Stainless Steel Railing
For architectural handrails, walkways and platform railings. Vertical infill supports clear definition of openings and appearance. Project rules determine height, loading, anchors and anti-climb requirements.
| Procurement Item | Details |
|---|---|
| Applicable Standard | ASTM A554 / MT-304 |
| Product Category | Railings / Stainless Steel Railings |
| Dimensions & Quantity | The sizes below are enquiry references. Available combinations, quantities and delivery times are subject to written quotation. |
| Documentation | Specify heat/batch inspection documents, standard edition, traceability and project certification in your enquiry. Documents are subject to confirmation of actual availability. |
01 / Product Features & Selection
- Qida coordinates drawing-based customization around cutting, forming, welding and surface treatment.
- Number posts, rails, infill and connectors by assembly to simplify overseas receiving and installation.
- Agree visible weld finish, brushing direction and protective packaging together.
02 / Specifications, Dimensions & Ordering Options
These dimensions help define your purchase requirement; they do not imply that every combination is in stock. Specify tolerances, quantity, delivery condition and destination port. Submit drawings for special sizes.
| Parameter | Specification / Enquiry Range | Points to Confirm |
|---|---|---|
| Overall Height H / mm | Common enquiry heights: 900, 1000, 1100, 1200; project drawings take precedence. | Minimum heights vary by country and application; follow destination requirements. |
| Post Spacing / mm | Common enquiries: 1000, 1200, 1500, subject to load and section design. | Spacing alone does not establish capacity without rail and post dimensions. |
| Handrail Outside Diameter / mm | 38.1, 42.4, 48.3, 50.8, 60.3 or a drawing-specified section | Confirm thickness, grade, joints and finish sample together. |
| Post Section | Round, square, rectangular tube or plate posts to drawing | Wall, base plate and stiffeners follow design; do not assume decorative-tube defaults. |
| Connections / Bases | Welded or mechanical connections; base plates, anchors, embedment and hole spacing to drawing | Project design determines substrate and anchorage verification. |
| Surface | Brushed, polished, weld-cleaned and passivated finish to approved sample | Agree visible-face direction, roughness / appearance and protective film separately. |
| Vertical Infill | Diameter / section, clear spacing and end connections to drawing | Child-safety openings, anti-climb and clearance restrictions follow local codes. |
| Material Standard | A554 MT-304 mechanical-tube chemistry shown here; plate and fasteners specified separately. | A 304 name alone does not make every component subject to the same product standard. |
03 / Standard Chemical Composition
ASTM A554 / MT-304. Values are mass percentages (%). Maximum limits are shown by ≤, minimum limits by ≥; ranges are specification limits and Fe is the balance. These are not measured results for a current delivery heat.
| Element / Indicator | Requirement or Range |
|---|---|
| C | ≤0.080 |
| Si | ≤1.00 |
| Mn | ≤2.00 |
| P | ≤0.045 |
| S | ≤0.030 |
| Cr | 18.0–20.0 |
| Ni | 8.0–11.0 |
| Fe | Balance |
Mass percentages from the YC INOX A554 table. A 304 designation alone does not qualify mechanical / decorative tube for A312 pressure service.
04 / Mechanical Properties & Application Limits
| Thickness / Material Condition | Yield Strength Re / Rp0.2 (MPa) | Tensile Strength Rm (MPa) | Elongation After Fracture A (%) |
|---|---|---|---|
| Mechanical Tube Delivery Condition | As agreed in the purchase specification | As agreed in the purchase specification | As agreed in the purchase specification |
A554 permits different manufacturing, heat-treatment and surface conditions. Do not copy annealed A312 strength values. Specify tests, specimens and acceptance limits where mechanical acceptance is required.
05 / Inspection, Processing & Quality Checks
- Approve overall height, post spacing, clear openings, corners, movement joints and end terminations on drawings.
- The A554 tube data here does not provide a universal strength guarantee. Specify mechanical properties and tests separately for load-bearing members.
- Agree weld appearance, continuity and cleaning against visible-face samples; inspect welded parts to project requirements.
- Project design must verify system loading, deflection, anchorage and substrate. This railing is not represented as crash-rated road restraint.
06 / Export Packaging for This Product
| Stage | Recommended Arrangement | Key Considerations |
|---|---|---|
| Individual Separation | Individually sleeve brushed / polished surfaces and use soft separation between posts and rails. | Isolate stainless steel from carbon-steel strapping. |
| Assembly Identification | Label sets by drawing, installation area and post / rail / connector type. | Bag fasteners separately, marking grade and quantity for site installation. |
| Crates & Transport | Select crates or frames according to module length and marine-transit handling. | Protect bases, welds and visible faces; include an assembly packing list. |
Before shipment, cross-check product, grade, heat number, size, piece count, net weight and gross weight against the packing list. Match labels to inspection documents. For solid-wood pallets, dunnage or crates, check destination-country rules; wood subject to ISPM 15 must be treated and marked by an approved provider. Load dry cargo and arrange supports, blocking and securing according to weight and centre of gravity.
07 / How Qida Supports Your Procurement
| Procurement Stage | Qida Coordination | Information for the Buyer |
|---|---|---|
| Requirement Review | Review application, standards, material condition, drawings and acceptance items. | A checkable specification list helps reduce language and unit-conversion errors. |
| Order Confirmation | Confirm material, processing, inspection, packaging, delivery milestones and cost responsibilities item by item. | A clear written quotation and mutually agreed purchase requirements. |
| Delivery Coordination | Coordinate production / sourcing progress, labels, packing lists and shipping documents. | Check dimensions, quantities and heat/batch correspondence at agreed milestones. |
| After-Sales Follow-Up | Review issues using order number, heat number, arrival photographs and test records. | A defined issue description and documented resolution communications. |
Qida's established railing business covers cutting, forming, welding and surface treatment. We review custom work against application, structure and drawings. Confirm material, special testing, installation loads and acceptance requirements before fabrication.
08 / Request for Quotation
For an accurate quotation, please provide:
Installation country / application + total length / height + plans and elevations + loading / opening rules + component grades / sections + finish sample + connections + quantity / destination port. Include project specifications and inspection plans.
Define Specifications, Quality and Delivery in One Enquiry
Send your purchasing list to Shandong Qida Metal Technology Co., Ltd. We will review standards, dimensions and destination requirements with you.
Send an Enquiry · qidamt@163.com
139-6951-8618
Technical Sources & Ordering Notes
This selection and enquiry guide is compiled from the primary public sources below. Values are not an inspection certificate for a delivery batch and do not imply a supply or authorization relationship with the source publishers. The agreed order governs standard edition, product form, thickness range, specimen and delivery condition. Similar grades are not automatically equivalent. Confirm project certification and inspection documents before ordering.
